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Configuration and Administration Guide

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1. Java Applet Window rus A Q El Nodes Node Name fuji e E fujial fl fujiz Node Type Database Gateway Service EH berlin El munich Node Status UP sidney El toronto Node Name Service State Con Count Suspend a Interfaces ji www httpitep AVAILABLE A Services 3 namefudp AVAILABLE lo Giese Figure 52 Node view showing node details 90 U42120 J Z100 3 76 Administration Administering with Cluster Admin Click on a host name or IP address of a node interface to see the details of the interface Click on an expansion icon in the left panel to see the services configured on that interface including the node above The right panel shows the following details see Figure 53 e Interface Type VIP PROXY or PRIVATE e Address P address of the interface e Mask The netmask of the interface o Preferred Gateway Only available if configured E_cluster Admin AER File Tools Help E Fus Nodes Interface Type Vip EY ria 4 3 Address 082397634 ES fuji2RMS i A A El berlin El EH munich 3 EH sidney i EH toronto 2 interfaces A Services ava Applet Window Figure 53 Node view showing interface details U42120 J Z100 3 76 91 Administering with Cluster Admin Administration Click on the service of a node interface in the left panel to see the
2. Legend Wup MDown F Primary DB El Backup DB fi ava Applet Window Figure 50 Main administration window 6 1 1 1 SIS configuration tree The left panel shows a tree depicting the SIS configuration from the following views of the cluster e Nodes Shows the node interfaces services hierarchy e Interfaces Shows the interface nodes services hierarchy e Services Shows the service interfaces nodes hierarchy 88 U42120 J Z100 3 76 Administration Administering with Cluster Admin Nodes view Click Nodes to see the node details configured for SIS see Figure 51 The right panel shows the node summary table with the following node details e Node Name e Type eo State Eg Cluster Admin ioj xi g t E STER Q Cluster Admin File Tools Help a E Node Summary Table EH Nodes a x Interfaces 4 sidney BCE Ti wig A senices berlin Serice munich fuji3 Database Gateway Service fuji2 Backup database Gateway Service toronto Java Applet Window Figure 51 Nodes view U42120 J Z100 3 76 89 Administering with Cluster Admin Administration Click the expansion icon to display the nodes see Figure 52 Select a node to see the following node details in the right panel ES Cluster Admin lolx Node Name Node Type Node Status List of services with their details File Tools Help
3. FUJI Save to JetciopiSMAWWISMAWdtcp E SIS Hode ai sis_1se File Hame 5 vP sis_fsc E Proxy v Start SIS with the new created configuration E Private Reconfigure Rebuild DB Node Selection Database Node fuji3 x Backup Database Hodes Selection Java Applet Window Figure 39 Rebuild option Next the SIS Wizard completed window appears see Figure 36 Click the Finish button to exit from the SIS Wizard 68 U42120 J Z100 3 76 Configuration Starting with an existing configuration file 3 5 Starting with an existing configuration file Instead of selecting the SIS Wizard you can choose the Search all configuration files from the SIS Startup Menu The SIS Clusterwide Startup window appears see Figure 40 Te 6 6 h hl SIS Clusterwide Startup File List Database Node Dir JetcloptSMAVWSMAVdtcp v FUJI Backup Database Nodes EH tuji3 fuji2 Selection Check Ok Cancel Help Java Applet Window Figure 40 SIS Clusterwide Startup window U42120 J Z100 3 76 69 Starting with an existing configuration file Configuration To select an existing configuration file perform the following 1 Click on the plus symbol of the node with the desired file 2 Select the file by clicking on it The primary Database Node selection list is populat
4. SERVICE ftp DCL ROUNDROBIN fuji2 fuji3 SERVICE 21 KEEPLOCAL SERVICE ftp CLBASED fuji2 fuji3 The following are invalid configurations SERVICE ftp data CONCOUNT fujil fuji2 illegal use of port 20 SERVICE 20 CONCOUNT fuji2 fuji3 SERVICE 19 25 CONCOUNT fuji2 fuji3 SERVICE ftp ROUNDROBIN fuji2 fuji3 DCL required 3 2 4 2 PROXY addresses PROXY addresses are provided by SIS to associate a virtual IP address to a single node All client requests to a PROXY address are forwarded to the PROXYNode One or more failover nodes can be associated with this node The first available node on this list will take over in case the primary PROXY node fails PROXY has the following syntax PROXY IPAddress netmask PROXYNode preferred_gateway IPAddress is a resolvable name or IP address netmask is the netmask associated with the above IP address e PROXYNode is a node or failover list The following are examples of PROXYNode fuji2 fujil FAILOVER fuji2 fuji3 26 U42120 J Z100 3 76 Configuration Configuration file The syntax for PROXY FATLOVER is as follows node_a FAILOVER node_n node_z If SIS on node_a or the node itself fails then a node from node_n node_z will replace the failed node When the failed node becomes available the connections stay on the replacement node Since PROXY does not allow limiting the services that can be requested on the node it provides failover only for a failure of the nod
5. 102 U42120 J Z100 3 76 Administration Administering with Cluster Admin Stop Start Pause and Resume options on all cluster nodes If SIS is up and running the Start and Resume options are not available To stop SIS on every node in the cluster select the Stop option from the menu which brings up the confirmation dialog box see Figure 65 Click on Yes to stop SIS Once SIS is stopped in this manner the SIS stopped window appears see Figure 66 Click on Ok The data displayed on the panels disappear Lester admin 1 4012 Stop SIS Java Applet Window Figure 65 Stop SIS window Cluster admin SIS Stopped as on Java Applet Window Figure 66 SIS stopped window To start SIS on every node in the cluster select the Start menu option from the Tools menu This brings up the S S Startup Menu window see Figure 67 This window allows you to perform one of the following options e Search all configuration files Searches all of the configuration files on all of the nodes of the SIS cluster e Start configuration wizard Starts the configuration wizard e Restore the last session Starts SIS with the previous configuration the last configuration used before stopping SIS U42120 J Z100 3 76 103 Administering with Cluster Admin Administration SIS Startup Selection 8 Search all configuration files Start configuration wizard Restore the last session
6. 132 U42120 J Z100 3 76 8 Debugging and troubleshooting This chapter contains information about the dt cpdbg command which is used for debugging purposes In addition there is a section on troubleshooting to assist you with common configuration and administration issues This chapter discusses the following e The Section dtcpdbg describes the dtcpdbg command and provides an example of debug output e The Section Troubleshooting lists various debugging and troubleshooting solutions for SIS 8 1 dtcpdbg Caution Do not use dtcpdbg unless directed to do so by support personnel It slows down the system significantly The dtcpdbg command has the following syntax dtcpdbg h Displays usage dtcpdbg G Displays debugging output for all nodes Enter the following commands after invoking dtcpdbg help Print this list of commands quit Quit dtcpdbg stat Show current setting of dtcpdbg global Start stop global output same as G option detail Start stop displaying detailed output tocon Stop continue duplicating output to system console Return Stop continue debugging output to tty screen redirect file_name Start stop redirecting output to file U42120 J Z100 3 76 133 dtcpdbg Debugging and troubleshooting dup Duplicate output to file and screen level LEmodule_name al1 ALLI Change output level debug_level When you execute dtcpdbg SIS displays the status the same output
7. Next you see the define scheduling algorithm window see Figure 23 Define schedules for each service as follows Ai Select a scheduling algorithm from the menu list at the top Changing the scheduling algorithm can cause the data entry fields to change as well Select the service nodes by clicking on the corresponding check boxes in the Service Nodes list If required click on the desired Failover Nodes check boxes You can only select nodes that have not been selected as service nodes Click on the arrow pointing down to add the definition to the area below Remove a definition by marking it in the area below and clicking on the up arrow After you are finished with the definition for this service click on the Next button which takes you back to the select services window see Figure 24 A configured service is now recognizable by a check box 50 U42120 J Z100 3 76 Configuration Creating a new configuration file GASIS Wizard leal JE This form allows you to define the scheduling algorithm Click Help for further guidance aj FUJI Select one schedule El SIS Node CLBASED x 23 vip Node Service Failover List Nodes Nodes EH tujis EB fuji2 7 berlin F munich 7 sidney oo E LER E EA E E qooooo OOOO 4 gt fuji2 gt fuji3 Java Applet Window Figure 23 Define sched
8. Ok Cancel Help Java Applet Window Figure 67 SIS Startup Menu window If you select the Search all configuration files radio button and click Ok it brings up the SIS Clusterwide Startup window see Figure 68 This window shows the cluster tree in the left panel with the nodes and the configuration files on them in the default directory etc opt SMAW SMAWdtcp SIS Startup x m SIS Clusterwide Startup File List Database Node Dir JetclopySMAWWSMAWadtcp fuji3 x 3 sgj 2 Backup Database Nodes EY sgj2 Nodes Selection A sis fuji2 vi ES sis fsc E sis 1 E sis 1a sis 1test E sis_cluster E sis_config_2 ES sis_dtcp 3 sis_fsc 3 sis_fujis check ok cancel Help Java Applet Window Figure 68 SIS Clusterwide Startup window Use the right mouse button on the items in the tree in the left panel to raise a small pop up menu see Figure 69 The menu items are as follows e Reload Reloads all of the configuration files on the selected node 104 U42120 J 2100 3 76 Administration Administering with Cluster Admin e View Opens a window that enables viewing the configuration file see Figure 70 Activate this option by right clicking on the configuration file name in the left panel tree e Edit Opens the configuration wizard for editing the selected configuration file Activate this option by right clicking on the con
9. STRING PortValue PortValue DCL PortDefDPO PortListDPO PortDefDPO PortValue DPO PortValue PortValue PortRange PortVal PortRangeProto PortValProto PortRangel PortVal PortVal PortVal Proto PortVa1 ProtoVal ProtoVal UMBER STRING PortVal UMBER STRING Float FLOAT Schedule KEEPLOCAL CLBASED ServNodeList LSYSLOAD ServNodeList ROUNDROBIN ServNodeListJ SPILLOVER LServNodeList AT FLOAT TO ServNodeList CONCOUNT CcNodeListJ ProxyDef PROXY IPAddress IPAddress LProxyAlist PROXY IPAddress IPAddress ProxyAlist Pgateway 130 U42120 J Z100 3 76 Syntax rules PrivateDef PRIVATE IPAddress IPAddress PrivateAlist Non terminal symbols are written in mixed case and are enclosed in brackets C1 The following terminal symbols upper case are undefined INTEGER STRING HEXNUMBER and DOTNUMBER Uppercase strings not enclosed in brackets 1 are keywords In a configu ration file they must be entered literally Character literals are shown enclosed in single quotes In a configuration file they are entered without quotes If no whitespace is shown between a symbol and a literal none is allowed If PORT is specified as a STRING it cannot take the value ftp data and if it is specified as a NUMBER it cannot take the value of 20 U42120 J Z100 3 76 131 Syntax rules
10. Java Applet Window Figure 25 Complete configuration window U42120 J Z100 3 76 53 Creating a new configuration file Configuration The window that follows allows you to continue defining VIPs or to add PROXY or PRIVATE addresses see Figure 26 Select Define VIP Addresses and click Next to define more VIPs and to check your configuration PRIVATE and PROXY addresses should be defined once the VIP address definitions are complete There is one of three paths you may traverse atthis point You may configure VIP Addresses Proxy Addresses or Private Addresses Selectthe appropriate radio button and click Next to continue E Fus EH SIS Node 88 vIP 8 Define VIP Addresses Define Proxy Addresses Define Private Addresses Java Applet Window Figure 26 Define addresses window 54 U42120 J Z100 3 76 Configuration Creating a new configuration file Returning to the define VIP addresses window shows that there is a checkmark in the check box next to each fully configured VIP see Figure 27 If you want to modify a VIP select the VIP click on Modify and make your changes as necessary Complete all VIPs in a similar way If you want to remove an already configured VIP select the VIP and click on Remove Gsis wizard lei es Create a new VIP Address by completing the form and pressing Add Modify an existing VIP Address by selecting the appr
11. 28 U42120 J Z100 3 76 Configuration Configuring with Cluster Admin After the Java applet has fully loaded a small top level window requires you to log in to the GUI see Figure 3 Server Ppriman 172 25 219 83 Secondary 172 25 219 84 Logout NodeList Version K Machine Administration amp Global Cluster Services Web Based Admin View amp Common E Web Based Admin View loj xj Username Password OK lava Applet Window FUJITSU ALL RIGHTS RESERVED FUWITSU LIMITED 1998 Figure 3 Login window U42120 J Z100 3 76 29 Configuring with Cluster Admin Configuration Enter the administrator name and the password for Web Base Admin View and click OK Once you have logged in select Global Cluster Services The window for selecting Cluster Admin appears see Figure 4 3 Web Based Admin iew Microsoft Internet Explorer File Edit View Favorites Tools Help Bak gt Y A Bsearch Favorites media Ey S HZI Address E http fujiz 8081 Plugin html Server Primary 172 25 219 83 Epe ondanf 172 25 219 84 Global Cluster Services 3K Cluster Admin Logout NodeList Version Web Based Admin View 0 FUJITSU ALL RIGHTS RESERVED FWITSU LIMITED 1998 Figure 4 Global Cluster Services window 30 U42120 J Z100 3 76 Configuration Configuring with Cluster Admin Select Cluster Admin
12. Click on a host name or an interface IP address of a service in the left panel to see the interface details of the service The interface details are shown in the right panel see Figure 61 The interface details include the following e Interface Type VIP PROXY or PRIVATE e Address P address of the interface e Mask The netmask of the interface o Preferred Gateway Only available if configured a File Tools Help E Fus J Nodes Vin e a Interfaces A L Q A Services A Address 208 239 76 34 gt g gapten E ATA Netmask 255 255 255 0 o A a wwe ET Ter rmsapes SS ara Applet Window Figure 61 Service window showing interface details U42120 J Z100 3 76 99 Administering with Cluster Admin Administration Node Name Node Type Node Status Failover Nodes Click on a node from the list on the left panel to see its details in the right panel see Figure 62 The node details include the following List of services with their details which are configured for that interface ES cluster Admin Dx File Tools Help ES Fus 4 GY Nodes Node Name fuji2 32 Interfaces a Services j Node Type Backup database Gateway Service A Idapitcp a name udp Node Status UP mycompany com Elf Failover Nodes runa A www httpitep Node Name Service State Con Count Suspend fuji2 n
13. Configuring with Cluster Admin describes how to configure SIS using the Cluster Admin GUI e The Section Examples and configuration files provides examples of some configuration files 3 1 Concepts The following concepts and definitions are important in the configuration of SIS e SIS cluster A subset of the CF cluster that provides the scalable and highly available network services of the PRIMECLUSTER suite e Database node Acts as a repository of the current state of the system It keeps the current configuration keeps track of the current list of available nodes and services knows about the current connections and their state and other housekeeping duties which ensure the smooth running of SIS e Backup database node A node in the current cluster that takes up the role of the primary database node if the primary database node goes down for any reason There can be more than one backup database node in the SIS cluster e Gateway node Any node that can communicate to the external world using the IP protocol e Services Network services such as http or ldap e Service node Provides a network service U42120 J Z100 3 76 17 Configuration file Configuration e Core node Any regular SIS node based on CF Core nodes can assume the role of any of the various SIS node types e Satellite node An irregular SIS node that does not use CF and can only function as a service node e Failover node An
14. Core nodes Figure 43 Supported satellite node hardware configuration 4 4 Setting up satellite nodes Refer to the Section Configuring satellite nodes for details on how to configure satellite nodes by means of Cluster Admin You need to set the cluster name for a satellite node if you have more than one cluster on the same subnet U42120 J Z100 3 76 75 Setting up satellite nodes Satellite nodes Satellite nodes are ready to join a cluster after they are booted and they are removed from service when they are shutdown In addition you can expel or activate satellite nodes from the core cluster as desired Satellite nodes will try to join any cluster that broadcasts However a cluster will accept a satellite node only if it is explicitly configured in the NODES list of the cluster The default for satellite nodes is to try and join the first cluster broadcast they receive To prevent a satellite node from joining multiple clusters specify a cluster name as described in the sections that as follow 4 4 1 Specifying cluster name on Windows systems To specify the cluster name for a Windows satellite node open the Network and Dialup Connections window Depending on your Windows options this is normally found in the Settings option of the Windows Start menu see Figure 44 or as a link in the My Computer window not shown New Office Document Norton SystemWorks a Open Office Document te Set Program
15. Ellipsis Signifies an item that may be repeated If a group of items can be repeated the group is enclosed in parentheses 1 4 Important Material of particular interest is preceded by the following symbols in this manual i Contains important information about the subject at hand Caution Indicates a situation that can cause harm to data U42120 J Z100 3 76 2 Introduction This section discusses the following e The Section SIS overview introduces the concepts of SIS and the various SIS components e The Section Satellite nodes describes the major differences between satellite nodes and regular SIS nodes e The Section Benefits lists the SIS features e The Section SIS architecture explains the functions of SIS in detail e The Section VIP introduces Virtual Interface Providers VIPs and it discusses the predefined scheduling algorithms used by SIS to schedule client requests e The Section PROXY discusses the concepts and uses of PROXY addresses e The Section PRIVATE details the uses of PRIVATE addresses e The Section Service node failover describes the failover mechanisms available in SIS 2 1 SIS overview SIS provides scalable and fault tolerant network services based on the under lying PRIMECLUSTER technology SIS enables PRIMECLUSTER to act as a scalable reliable and easily managed network server system Some or all of the nodes in PRIMECLUS
16. InterfaceSection AssignmentSection LNodeSecton GatewaySection InterfaceSection NodeDef NodeSection NodeDef ODES List Assignment AssignmentSection Assignment STRING List STRING List FAILOVER List Blist CcNodeList Blist Alist Alist ServNodeList IPAddress IPAddress FAILOVER List IPAddress IPAddress IPAddress FAILOVER List IPAddress List FAILOVER List UMBER Alist LAlist CBnum IPAddress List LIPAddress InterfaceDef InterfaceSection InterfaceDef VipDef ProxyDef PrivateDef VipStart VipList E VipBody VIP VipAddress VipList VipAddress HEXNUMBER DOTNUMBER U42120 J Z100 3 76 129 Syntax rules IPAddress VipAddress Vi pBody J GatewaySection GatewayDef ServiceSection ServiceDef SerStart PortList u Pgateway PortDef PortListDP0 PortDefDP01 FourBytes NUMBER STRING IPAddress IPAddress IPAddress IPAddress PGateway ServiceSection AssignmentSection LServiceSection GatewayDef GatewaySection LGatewayDef GATEWAYS List ServiceDef ServiceSection ServiceDef SerStart PortList Schedule SerStart PortListDPO SERVICE PortDef PortList PortDef
17. SERVICE name 42 judp CLBA SERVICE 80 tcp CLBASED fi PROXY www abe com 255 255 2 PRIVATE 192 168 1 2 255 255 2 PRIVATE 192 168 1 1 255 255 241 Ch so Java Applet Window Figure 36 SIS Wizard completed window U42120 J Z100 3 76 65 Creating a new configuration file Configuration If you chose to start SIS with the new configuration then you have the option to either reconfigure or rebuild the configuration see Figure 37 The Reconfigure option is available only if SIS is running Egsis Wizard Lol xj You may save the configuration by specifying the appropriate filename Additionally you may choose to update SIS using this configuration by clicking the Reconfigure radio button Click Mext to continue the operation 8 FUJI Saveto etc opiSMAWISMAWdtcp H EH SIS Node File Hame sis fsc ca 28 VIP E Proxy v Start SIS with the new created configuration 22 Private 8 Reconfigure Rebuild Java Applet Window Figure 37 Restarting SIS from the save configuration window SIS does not allow the NODES list to be changed by reconfiguration If your new configuration does not contain the same nodes as the currently running SIS configuration you must choose the Rebuild option 66 U42120 J Z100 3 76 Configuration Creating a new configuration file Reconfiguring SIS by means of the Reconfigure radio button has the follo
18. and then in the resulting pop up window choose a node for initial connection see Figure 5 Server Primary 172 25 219 83 gt Secondary 172 25 219 84 Global Cluster Services L NodeList ena J Cluster Admin Web Based Admin View Cluster Admin amp Choose a node for initial connection uji2 fuji3 Ok Cancel Figure 5 Choosing a node for initial connection U42120 J Z100 3 76 31 Configuring with Cluster Admin Configuration The Cluster Admin main window appears see Figure 6 ES Cluster Admin MPE File Tools Statistics Help B Fus O m2 O mn Node States fuji2 fuji3 mfuji2 uP O uP mujia O uP ur y Show State Names All cluster nodes are up and operational Legend El Monitored by CIM E Monitored but Overridden Java Applet Window Figure 6 PRIMECLUSTER Cluster Admin window 32 U42120 J 2100 3 76 Configuration Configuring with Cluster Admin 3 3 3 Displaying the SIS GUI main window To display the SIS GUI main window click on the S S tab in the bottom of the left panel to start the SIS portion of the Cluster Admin GUI If SIS is configured and running you will see the SIS main window displaying the configuration In this case refer to Section Administering with Cluster Admin for further details If SIS is not configured on the node click on the sis tab select Start from th
19. ps ef grep dtcpd e Verify that the SIS configuration contains the correct nodes and services 1 Use the dtcpadmin p command to check the configuration file 2 Enter the dtcpadmin r command to reload the configuration e Use the following command to verify that the services scheduled are actually running ps grep httpd lt service gt e Use the following command to verify that the VIPs are configured and functioning netstat ni U42120 J Z100 3 76 185 Troubleshooting Debugging and troubleshooting The output for the netstat ni command should look similar to the following netstat in Name Mtu Net Dest Address truncated 100 8232 127 0 0 0 127 20 0 1 hme0 1500 192 168 21 0 192 168 21 14 hmel 1500 192 168 22 0 192 168 22 14 le0 1500 172 290 0 172 25 219 14 The important information is the driver interface name in the first column Some of the lines in the above examples have been truncated e Check the system logs for any error messages 1 Use the dmesg command to display the most recent error messages 2 For additional error messages look at the following file var adm messages e Check if the services are available to SIS 1 Use the following commana dtcpstat 1 lt service gt 2 If the service is configured and appears in dtcpadmin p but notin dtcpstat 1 lt service gt then try stopping killing and restarting the service Some services such as tel net and ftp are starte
20. 3 76 27 Configuring with Cluster Admin Configuration The following is strongly recommended for PRIVATE configurations e Configure a PRIVATE interface for each node e Select IP addresses from one of the available non routable subnets 3 3 Configuring with Cluster Admin The following sections discuss how to create the SIS configuration file using the Cluster Admin GUI which has a wizard for creating a new configuration file refer to Section Cluster Admin for a brief description of Cluster Admin 3 3 1 Starting SIS Start SIS with Cluster Admin as follows 1 Log in to Cluster Admin 2 Display the SIS GUI main window and choose one of the following a Load a pre saved configuration file b Start the SIS configuration wizard 3 3 2 Logging in to Cluster Admin Cluster Admin requires a functional Web Based Admin View installation on all nodes of the cluster Refer to either the PRIMECLUSTER Installation Guide Solaris or the PRIMECLUSTER Jnstallation Guide Linux for information on installing and configuring the Web Based Admin View GUI Once you have installed and configured Web Based Admin View do the following 1 Open your browser 2 Type in the address of the URL for Web Based Admin View by entering its address into your Java enabled browser For example if the initial node chosen is fuji2 enter the following URL to pull up the Web Based Admin View java based applet http fuji2 8081 Plugin cgi
21. General Satellite Node Driver This property page allows you to set the cluster that you would like to join I Connect to any cluster Enter the cluster name Fusi Cancel Help Figure 49 Satellite Node properties window Enter the cluster name in the text box and click on the OK button Now the Windows SIS satellite node will only join the specified cluster U42120 J Z100 3 76 81 Setting up satellite nodes Satellite nodes 4 4 2 Specifying cluster name on Linux systems For Linux systems set the CLUSTERNAME variable in the etc init d dtcp file as follows 1 Change the CLUSTERNAME variable to CLUSTERNAME PRIMECLUSTER i The cluster name should be in all upper case letters 2 Reboot the system 4 4 3 Specifying cluster name on Solaris OE systems For Solaris systems add or edit the following line in the etc system file as follows 1 set dtcp sis_cluster_name cluster_name cluster_name is the name of the CF cluster 2 Reboot the system 82 U42120 J Z100 3 76 5 NIC failover This chapter describes SIS Network Interface Card NIC failover including how SIS recognizes a failure how it responds and what you need to do to configure the SIS NIC failover module This chapter discusses the following e The Section Introduction introduces the problems and solutions for a SIS NIC failover e The Section SIS NIC failover module details how the SIS NIC failover module w
22. Section Debug messages describes the dtcpdbg program 6 1 Administering with Cluster Admin You can administer SIS using the Cluster Admin GUI by logging on to Cluster Admin refer to the Section Cluster Admin and clicking on the S S tab at the bottom of the left panel refer to the Section Starting SIS 6 1 1 Using the GUI After launching the SIS GUI you will see the main administration window see Figure 50 The main administration window consists of the following e SIS configuration tree on the left Displays the configuration the status of the nodes and services and some basic statistics e Clusterwide summary table on the right Shows a summary table of all of the configured interfaces their type IP addresses netmasks and the scheduled nodes configured for each service The details of the services include the name port number scheduling and the nodes offering the service U42120 J Z100 3 76 87 Administering with Cluster Admin Administration Eg Cluster Admin j IP Address Port Mask Schedule Scheduled Nodes ES mycompany com Vip 208 239 76 34 255 255 255 0 Idapitcp Service 389 ROUNDROBIN Bi fuji3 A services name udp Service 42 CLBASED Bfuji2 Al www htiptcp Service 80 OLBASED Mfuji2 25 fuji2RMS Private 192 168 1 1 255 255 255 0 E fuji RMS Private 192 168 1 2 255 255 255 0 E 199 181 135 201 Proxy 199 181 135 201 255 255 255 0
23. a 74 Setting up satellite nodes 0 75 Specifying cluster name on Windows systems 76 Specifying cluster name on Linux systems 82 Specifying cluster name on Solaris OE systems 82 NIC failover 0 e 83 IntrOdUCHOM 00 6 a o rr a amp 83 SIS NIC failover module 2 e 84 MONITO O 24 2 sauna a oe dl es A a a a 84 Failover MOde sos ae aod iea e a we 84 Restore actions 5 2 0 ir a a Maa a I a Y 85 Starting and restarting o 85 Trusted host configuration 0 o 85 Administration 0 a 87 Administering with Cluster Admin 87 Using the GUI acia rr a OO ee 87 SIS configuration tree 0 o 200 88 Using the Menu Dales y sonig aa ak ana e a 101 Fil pede ata ded dgadaate bh Fag bacee te ke a 101 TOOIS E g eee ach e and dana Bee eh ee ae a 102 Help i ste 1 heh he a ce a Bhd Bs ae we Se 115 Administering with the CLI 118 Displaying the status 0 SIS 0 121 Status by NOUS ie ros a as anh ek A a BE a 122 Status by Service s p oon caa e A 122 Status of SIS connections a oa saoao a a 124 Showing the gateway node ooa oao 126 U42120 J Z100 3 76 Contents 6 4 6 5 SISCdIEMON bornes mdd a 126 Debug MESSAGES cosas a a AR 127 Syntax rules 2 keke bee ee coma ara 129 Debugging and trouble
24. access to running service systems and applications e Integrates into a full featured cluster with high availability and scaling for applications e Provides a dynamic and easy way to configure interface 10 U42120 J Z100 3 76 Introduction Benefits User friendly GUI Runs on the same server as the application Does not require special hardware Does not need network changes Applications do not need to be changed e Supports satellite nodes e Support for Windows 2000 service nodes as satellite nodes U42120 J Z100 3 76 11 SIS architecture Introduction 2 4 SIS architecture SIS cluster Service node Service node satellite node A Database node an l 4 Gateway node 1 Client system Figure 2 Example of how a SIS cluster processes requests In Figure 2 the SIS cluster consists of one gateway node two service nodes and one database node the service node the database node and the gateway node can all reside in one physical node When the client sends a network request the SIS cluster responds as follows 1 The request reaches the gateway node 12 U42120 J 2100 3 76 Introduction VIP 2 The gateway node queries the database node to determine which service node will reply to this network request The database node determines this according to the current configuration and the availability of
25. and adminis tering the redundant line control function for Global Link Services GLS e Global Link Services Solaris Configuration and Administration Guide Redundant Line Control Function Provides information on configuring and adminis tering the redundant line control function for Global Link Services GLS e Global Link Services Linux Configuration and Administration Guide Multipath Function Provides information on configuring and administering the multipath function for Global Link Services GLS e Web Based Admin View Solaris Linux Operation Guide Provides information on using the Web Based Admin View management GUI e SNMP Reference Manual Solaris Linux Provides reference information on the Simple Network Management Protocol SNMP product e Data Management Tools Solaris Configuration and Administration Guide Provides reference information on the Volume Manager RCVM and File Share RCFS products e RMS Wizards documentation package Available on the PRIMECLUSTER CD These documents deal with topics such as the configuration of file systems and IP addresses They also describe the different kinds of wizards 1 21 Suggested documentation The following manuals contain information relevant to PRIMECLUSTER admin istration and can be ordered through your sales representative not available in all areas e ANSI C Programmer s Guide e LAN Console Installation Operation and Maintenance e Terminal
26. are no backup database nodes and there are one or more non database nodes still active If the local node is inactive then SIS will not report an error Reconfigures SIS The new config_file is parsed and the configuration is sent to the designated database nodes This command can be used on any active node 118 U42120 J Z100 3 76 Administration Administering with the CLI dtcpadmin c config_file dtcpadmin b node dtcpadmin g gateway_node vip_address dtcpadmin f dtcpadmin w dtcpadmin n dtcpadmin p Makes the local node a database node The node needs to be inactive The first node called with this command reads the contents of the file configures and starts SIS on the local node Additional nodes called with this command option need a valid config_file to prevent a syntax error however the configu ration data are ignored and SIS is started on the local node as a backup database node This command needs to be executed on at least one node To make SIS highly available it is i strongly recommended that you have at least one backup database node however at times it may be more conve nient to use the dtcpadmin b command since it does not require a syntactically correct configuration file Sets the given active node as a backup database node If no node name is given it sets the local node as the backup database node The node needs to be active If the node is already a
27. as the stat command SIS displays the output as follows node_ID message_length DETAIL message DETAIL is shown only if the detai1 flag has been set by the detail command lt has the following syntax debug_level module_name line_number The default debug_level is PANTC The amount of output increases as the debug_level increases from PANIC to DEBUG Debug levels are as follows e DEBUG e TRACE e LOG e NOTICE e WARNING e PANIC For example entering the dtcpdbg command results in output similar to the following dtcpdbg console flag local tocon detail NU DEBUG DB DEBUG GW DEBUG SV DEBUG PS DEBUG DM DEBUG V1I DEBUG DR DEBUG O 102 TRACE GW gateway c 1202 dtcp_gw_process_arp req 00 e0 b0 df db 0 102 TRACE S gw_sniffer c 365 dtcp_gw_send_arpmsg to 00 e0 b0 dr_d5b 134 U42120 J Z100 3 76 Debugging and troubleshooting Troubleshooting The amount of debugging information depends on the setting of debug_level To set the level of output at DEBUG for module NU perform the following steps 1 Afterthe system prompt enter the following dtcpdbg 2 Enter level NU DEBUG i dtcpdbg has no prompt 8 2 Troubleshooting Use the following steps for debugging and troubleshooting SIS e Check if CF is functioning and verify that the nodes are up refer to the CF installation guide for further information e Use the following command to check if dtcpd is running
28. esk gt OA A Reach Ggravortes Huei G 4G ES 60 Links gt Norton antivirus E Address E http ffuji2 8081 5MAWrcadm help coPlang engish main overview dtcp htmlg Scalable Internet Services SIS Scalable Internet Services SIS Overview e SIS Functional Overview e SIS Main Window e SIS Configuration SIS provides a transparent scheduling of connection requests into a pool of service providers A client connecting to the distributed service sees only a single Ee Nod address while the connection is placed dynamically into the service pool Once er configured SIS is transparent to the user meaning that no changes are needed in e Interfaces j ae the user s TCP based application e Services 4 Te SIS configures the nodes of a cluster as service nodes gateway nodes and database nodes A node may serve more than one function Service nodes provide one or more TCP services such as telnet or http and receive requests from the gateway nodes Gateway nodes are visible to the outside They determine which service node will receive the request Database nodes maintain e SIS Clusterwide Startup Window o New Jl F iati the current configuration and connection data and provide them to the other Co ation File otc e SIS Menu items Incoming packets are passed through the IP Snuffer module which reside on the gateway nod
29. fuji2 and fuji3 The LDAP database is replicated on both nodes Both nodes reply to LDAP queries alternately for the TCP protocol For UDP fuji2 replies to all queries and if fuji2 fails fuji3 will reply to all UDP queries The sample configuration is as follows NODES fuji2 fuji3 GATEWAYS fuji2 fuji3 VIP Idap mycompany com 255 255 255 0 SERVICE Idap ROUNDROBIN fuji2 fuji3 SERVICE Idap udp ROUNDROBIN fuji2 FAILOVER fuji3 PRIVATE 192 168 1 1 255 255 255 0 fuji2 PRIVATE 192 168 1 2 255 255 255 0 fuji3 Example 2 This example shows a four node cluster with two powerful systems fuji3 and fuji4 and two not so powerful systems fuji 1 and fuji2 fujil and fuji 2 answer simple http queries and fuji3 and fuji4 answer the secure https requests In addition one customer is hosting a very large web site www abc com and another customer is hosting a smaller web site www def com To duplicate this example you need to use a text editor like vi U42120 J Z100 3 76 71 Examples and configuration files Configuration The sample configuration is as follows Powerful systems M400_NODELIST fuji3 fuji4 Not so powerful systems M200_NODELIST fujil fuji2 A11 Nodes NODELIST M400_NODELIST M200_NODELIST NODES NODELIST GATEWAYS NODELIST Vip definitions VIP www mycompany com 255 255 255 0 SERVICE http ROUNDROBIN M200_NODELIST SERVICE https SYSLOAD M400_NODELIST PROXY definitions ROXY
30. integrated with SIS U42120 J Z100 3 76 83 SIS NIC failover module NIC failover 5 2 SIS NIC failover module The SIS NIC failover module monitors NICs on its member nodes and reacts accordingly if it cannot contact one of its monitored NICs 5 2 1 Monitoring The basic mechanism used is the ICMP_ECHO_REQUEST ping A set of trusted hosts that are likely to be available may additionally be provided in a file Example A cluster consists of SIS nodes fujil fuji2 and fuji3 Monitoring is done as follows 1 Each node monitors the NICs on the following node by doing regular pings to that node for example fujil pings fuji2 fuji2 pings fuji3 fuji3 pings fujil 2 Ifthe pings from fujil to fuji2 fail then fujil tries to ping a host from its list of trusted hosts If this succeeds then fujil assumes that fuji2 s NIC has failed and takes action 3 If fujil cannot reach any other host it will do nothing 5 2 2 Failover mode If fujil determines that the NIC on fuji2 has failed the SIS NIC failover module takes actions as in the following example Example 1 fujil starts monitoring the external interfaces of fuji 3 while continuing to try to reach fuji2 2 If fuji2 is a gateway node the next available node on the same subnet is ordered to be the gateway node 84 U42120 J Z100 3 76 NIC failover SIS NIC failover module 3 Outgoing packets from fuji2 are rerouted through the next available node
31. nodes and services 3 The gateway node keeps the result cached for future packets of the same connection 4 The IP packet is then sent to the service node where it is forwarded on to the application 5 The application on the same service node replies directly to the client without going through the gateway node 25 VIP A Virtual Interface Provider VIP is a single virtual address channelling access to network services provided by one or more nodes in the cluster A VIP requires definition of port service port protocol scheduling algorithm and a list of one or more service nodes that are providing this service The following scheduling algorithms govern the distribution of connection requests according to various load requirements or they associate a client with a special service node e Keep local The gateway node answers the request without any processing overhead e Client based The service node is chosen based on the client s IP address e System load The system with the minimum system load is chosen The system load is calculated by SIS using an internal algorithm e Round robin All available nodes are chosen in a circular way e Spill over If the system load on all primary nodes is equal or greater than the configured threshold a backup node is chosen to lessen the load e Weighted connection count SIS chooses the node with the least number of connections By assigning a weight to parts of the
32. see Figure 80 EJ Operations on Satellite Nodes xj Activate Satellite Nodes Selecte satellite nodes from the list Allocated SIS services Java Applet Window Figure 81 Expelling satellite nodes Select the satellite nodes to be joined from the left panel The right panel displays all the services allocated on the selected node Click on the Ok button to activate the selected satellite nodes Wizard The Wizard menu option offers the following choices e New Configuration File Select to create a new file using the wizard refer to the Section Creating a new configuration file e Edit Configuration file Select to bring up the Edit Wizard window see Figure 82 Find the file that you want to edit as follows a Click on the node for the configuration file that you want to edit This shows all of the SIS configuration files on that node U42120 J Z100 3 76 113 Administering with Cluster Admin Administration b Select the file that you want to edit c The View and Edit buttons become active To view the file click on the View button see Figure 70 Click the Edit button to open the configu ration wizard for editing the selected configuration file using the wizard refer to Section Creating a new configuration file View Edit Configuration Files Nodes Files etc opt SMAW SMAWatcp fuji3 dt conf fe dtcp dtcp conf fdfddff fivipO1 fuji_clus
33. vip_address is specified it shows the gateway nodes for all the configured VIP addresses dtcpstat without any options Shows the status of all the connections The q option can be used with any of the above options to suppress unnec essary headers The n option can be used to show network addresses including host names and service names such as IP addresses and port numbers respectively U42120 J Z100 3 76 121 Displaying the status of SIS Administration 6 3 1 Status by node The dtcpstat N command displays the status of every node in the cluster configured for SIS Entering the dtcpstat N command results in output similar to the following Id Name Type State 0 fujil DGS UP 1 fuji2 LS UP 2 fuji3 dGS UP 3 fuji4 GS DOWN Type refers to the type of node The meaning of the output for Type is as follows database node Backup database node Gateway node Service node rn ppa o Satellite node i State refers to the state of SIS on that node not the state of the node 6 3 2 Status by service The dtcpstat 1 command displays information about all available SIS services in the cluster Specifying either of the options node_name or service limits the information to specific nodes or services Only the services that are both configured and started are shown You can specify both service and node_name but only one of each at a time For instance you can specify either rlogin or telnet for service but y
34. www abc com 255 255 255 0 fuji3 FAILOVER fuji4 ROXY www def com 255 255 255 0 fujil UU PRIVATE definitions RIVATE 192 168 1 1 255 255 255 0 fujil RIVATE 192 168 1 2 255 255 255 0 fuji2 RIVATE 192 168 1 3 255 255 255 0 fuji3 RIVATE 192 168 1 4 255 255 255 0 fuji4 UU UTUTUS 72 U42120 J 2100 3 76 4 Satellite nodes This chapter details the requirements for setting up satellite node configura tions This chapter discusses the following e The Section Overview introduces the concepts of satellite and core nodes e The Section Software details the software requirements for satellite node configurations e The Section Hardware specifies the types of hardware required for satellite node configurations e The Section Setting up satellite nodes discusses how to setup satellite node configurations 4 1 Overview Satellite nodes run a version of SIS that supports most of the same network services as the complete package All the scheduling algorithms work the same as standard nodes Satellite nodes differ from regular SIS nodes therefore regular SIS nodes are known as core nodes The major differences between satellite nodes and core nodes are as follows e Satellite nodes cannot also be members of the CF cluster e Satellite nodes cannot act as database backup database or gateway nodes U42120 J Z100 3 76 73 Software Satellite nodes Figure 42 illustrates a five nod
35. 03 clusterwide 103 individual node 108 state of services Available 98 123 Suspended 98 123 Unknown 98 123 status by node 122 by service 122 displaying 121 stopping individual nodes 108 stopping SIS CLI 118 clusterwide 103 individual node 108 Suspended 98 123 U42120 J Z100 3 76 141 Index Synfinity Link GLS 83 syntax check 107 rules 129 syntax rules 129 SYSLOAD 22 system load algorithm 13 T TCP 19 24 defining 46 example 70 VIP body 22 tocon 133 Tools menu 102 TRACE 134 troubleshooting 135 U UDP 19 22 24 example 70 selecting 46 Unknown 98 123 using the menu bar 101 V variables 19 viewing the configuration file 105 Virtual Interface Providers body 21 gateway node 83 interface definition 21 Ww WARNING 134 weighted connection count 13 23 Windows cluster name 76 satellite nodes 76 Windows 2000 9 74 Wizard menu 113 142 U42120 J 2100 3 76 Fujitsu Siemens Computers GmbH User Documentation 33094 Paderborn Germany Fax 49 700 372 00001 email manuals O fujitsu siemens com http manuals mchp siemens de Comments Suggestions Corrections Submitted by Comments on PRIMECLUSTER Scalable Internet Services SIS U42120 J Z100 3 76 Fujitsu Siemens Computers GmbH User Documentation 33094 Paderborn Germany Fax 49 700 372 00001 email manuals O fujitsu siemens com http manuals mchp siemens de Comments Suggestions Cor
36. 1 1 Service nodes Service nodes offer network services such as web services and directory services If a service node fails services are scheduled around it When a failed node comes back up it joins the SIS cluster 2 1 2 Gateway nodes There is one gateway node per VIP address All incoming packets are received by this node and forwarded to the service node depending on the scheduling algorithm for the service If a gateway node fails another node assumes the role of the failed gateway node without any interruption 8 U42120 J Z100 3 76 Introduction Satellite nodes 2 1 3 Primary database node The primary database node keeps the static and dynamic data of the SIS cluster The static information may include the list of nodes in the SIS cluster the VIP address and services offered and the scheduling algorithms The dynamic information includes the current list of connections and the current status of the SIS cluster 2 1 4 Backup database node The backup database node assumes the role of the primary database node when the primary database node fails for any reason There can be more than one backup database node One of the backup database nodes will become the primary database node if the primary database node fails Each backup database node contains the static configuration details and SIS collects the dynamic configuration items from all the available nodes therefore network disruption is kept to a minimum 2 2 Sat
37. 1 Proxy 199 181 135 201 255 255 255 0 mycompany corn Vip 208 239 76 34 255 255 255 0 lava Applet Window Figure 55 Interfaces window U42120 J Z100 3 76 93 Administering with Cluster Admin Administration In the left panel click on the expansion icon for to list the interfaces Selecting an interface name or IP address reveals the details of that interface in the right panel e Interface Type VIP PROXY or PRIVATE e Address P address of the interface e Mask The netmask of the interface e Preferred Gateway Only available if configured Further expanding of the tree reveals the nodes as well see Figure 56 File Tools Help FUJI a El Nodes Interface Type vip 9 E interfaces i o 33 mycompany com Address 208 239 76 34 2 fuji2RMS a 2 fuji3RMS 4 Netmask 255 255 255 0 22 199 181 135 201 A services cc A Java Applet Window Figure 56 Interface window showing interface details 94 U42120 J Z100 3 76 Administration Administering with Cluster Admin Further expanding the tree shows the services relative to each node see Figure 57 Selecting a node shows the following node details in the right panel e Node Name e Node Type e Node Status o List of services with their details E_cluster Admin File Tools Help FUJI Nodes Q E interfaces Database Gat
38. Access and Defaults Windows Update len Programs Documents Control Panel 5 EJ Network and Dial up Connections 2 Printers A Taskbar amp Start Menu Displays network and dial up connections on and helps you create new ones E inbox i untitle iSite EB Adobe Frame H Networ Figure 44 Windows Network and Dial up Connections 76 U42120 J Z100 3 76 Satellite nodes Setting up satellite nodes Locate the Local Area Connection for the Fujitsu Siemens VIP adapter see Figure 45 ork and Dial up Connectio 0 x File Edit View Favorites Tools Advanced Help Back gt gt ey GQsearch Ay Folders S Ms GF Xx A Edy Address E Network and Dial up Connections y Go a I E3 cB ERI x U de Make New Local Area Network and Dial up Connection Connection Connections Local Area Connection 114 Type LAN Connection Status Enabled Fujitsu Siemens VIP Adapter Fujitsu Siemens VIP Adapter Figure 45 Local Area Connection for Fujitsu Siemens VIP Adapter Double click on the Local Area Connection icon U42120 J Z100 3 76 TL Setting up satellite nodes Satellite nodes The Status window for the VIP adapter appears see Figure 46 Local Area Connection 114 Status Figure 46 VIP adapter status window Click on the Properties button 78 U42120 J 2100 3 76 Satellite nodes Sett
39. CS e Reliant Monitor Services RMS Solaris Linux Troubleshooting Guide Describes diagnostic procedures to solve RMS configuration problems including how to view and interpret RMS log files Provides a list of all RMS error messages with a probable cause and suggested action for each condition e Cluster Foundation CF Solaris Configuration and Administration Guide Provides instructions for configuring and administering the PRIMECLUSTER Cluster Foundation Cluster Foundation CF Configuration and Administration Guide Linux Provides instructions for configuring and administering the PRIMECLUSTER Cluster Foundation e Global Disk Services Solaris Configuration and Administration Guide Provides information on configuring and administering Global Disk Services GDS 2 U42120 J Z100 3 76 Preface Related documentation e Global Disk Services Linux Configuration and Administration Guide Provides information on configuring and administering Global Disk Services GDS e Global File Services Solaris Configuration and Administration Guide Provides information on configuring and administering Global File Services GFS e Global File Services Linux Configuration and Administration Guide Provides information on configuring and administering Global File Services GFS e Global Link Services Solaris Configuration and Administration Guide Redundant Line Control Function Provides information on configuring
40. Configuration Creating a new configuration file The windows that follow the welcome window are divided into two panels as follows e Left panel Shows the configuration as you create it either in a tree format see Figure 9 or as a textual file see Figure 10 depending on the tabs you choose at the bottom of the panel e Right panel Takes the configuration input and reflects it in the left hand panel EgsIS Wizard AS JO xl Selectthe appropriate TCP UDP services in which to configure scheduling algorithms Add the appropriate services from the Available listto the Selected list Click Mext to continue Fu v Define new Udp service O tcp udp EH SIS Node Start i End a fuji3 y Gateway a End fuji2 v Gateway Available Udp services Selected services df berlin name 42 udp Idap 3B9yitep Eron netbios dam 138 udp name 42 udp sidney R amp toronto netbios ns 137 udp BOitep E amp vie netbios ssn 139 udp E WWW Mycompany com new who 550 udp Hetmask 255 255 258 nfs d 2049 udp A Service ntp t23 udp ripng 521 udp rmonitor S60 udp rmopagt 2959 udp tmshb 9786 udp Java Applet Window Figure 9 Viewing the configuration in the tree format U42120 J Z100 3 76 35 Creating a new configuration file Configuration EgsIS Wizard NODES fuji3 fuji2 berlin munich sid GATEWAYS fuji3 f
41. ILOVER statement e Character types other than those above cannot be used Some common examples of this are slashes and colons e The following keywords cannot be part of a variable definition and will produce syntax errors VIP GATEWAYS SERVICE PROXY PRIVATE NODES KEEPLOCAL CLBASED SYSLOAD ROUNDROBIN FAILOVER CONCOUNT SPILLOVER AT TO udp tcp NONE DCL and DPO U42120 J Z100 3 76 19 Configuration file Configuration However FAILOVER may be used in a variable definition if it is contained within parentheses and part of a FAILOVER list The following are examples of valid variable assignments HTTP_NODES fuji2 fuji3 FUJI3 fuji3 3 2 2 NODES declaration NODES defines the membership of the SIS configuration includes satellite nodes It has the following syntax NODES nodedef_1 nodedef_n nodedef can be a node name or a variable the variable resolves to one or more node names The following are examples of valid node definitions NODES HTTP_NODES NODES fuji2 FUJI3 3 2 3 GATEWAYS declaration GATEWAYS defines the SIS nodes that have an external interface on the public network It has the following syntax GATEWAYS nodedef_1 nodedef_n nodedef can either be a node name or a variable The following are examples of valid gateway definitions GATEWAYS HTTP_NODES GATEWAYS fuji2 FUJI3 If a node has an external interface on the same network as any of the public SIS s
42. IP www mycompany com 255 255 255 0 SERVICE Idap tcp ROUNDROBIN fuji2 fuji3 SERVICE name udp CLBASED fuji2 FAILOVER fuji3 SERVICE 80 tcp CLBASED fuji2 FAILOVER fuji3 PROXY www abc com 255 255 255 0 fuji2 PRIVATE 192 168 1 1 255 255 255 0 fuji3 PRIVATE 192 168 1 2 255 255 255 0 fuji2 60 U42120 J Z100 3 76 Configuration Creating a new configuration file Egsis Wizard Tel xj You may 1 choose to edit more interfaces 2 save the current configuration wi the error checking feature or 3 save the current configuration without doing the error check by selecting the appropriate radio button Click Next to continue GATEWAYS fuji3 fuji2 IP www mycompany com 255 14 SERVICE Idap 389 tcp ROUN Z SERVICE name 42 udp CLBA SERVICE 80 tcp CLBASED tU O Add Edit Interface 8 Save file with error check PROXY www abc com 255 255 27 Save file without error check PRIVATE 192 168 1 2 255 255 24 PRIVATE 192 168 1 1 255 255 2 Cancel Back Next Help Java Applet Window Figure 31 Complete configuration window You should now refer to Section Completing the configuration for information on saving your file U42120 J Z100 3 76 61 3 4 4 Completing the configuration After creating and defining all of the VIP PROXY and PRIVATE interfaces the window in Figure 31 appears If you have finished adding all of the interfaces select the Save file with error check rad
43. PRIMECLUSTER Scalable Internet Services SIS Solaris Linux Configuration and Administration Guide Edition November 2003 Comments Suggestions Corrections The User Documentation Department would like to know your opinion of this manual Your feedback helps us optimize our documentation to suit your individual needs Fax forms for sending us your comments are included in the back of the manual There you will also find the addresses of the relevant User Documentation Department Certified documentation according DIN EN ISO 9001 2000 To ensure a consistently high quality standard and user friendliness this documentation was created to meet the regulations of a quality management system which complies with the requirements of the standard DIN EN ISO 9001 2000 cognitas Gesellschaft f r Technik Dokumentation mbH www cognitas de Copyright and Trademarks Copyright O 2002 2003 2003 Fujitsu Siemens Computers Inc and Fujitsu LIMITED All rights reserved Delivery subject to availability right of technical modifications reserved Solaris and Java are trademarks or registered trademarks of Sun Microsystems Inc in the United States and other countries Linux is a registered trademark of Linus Torvalds All hardware and software names used are trademarks of their respective manufacturers This manual is printed on paper treated with chlorine free bleach Preface Introduction Configurati
44. TER can be configured as the SIS Cluster SIS provides the following three kinds of access to network services that are not usually available on standard servers e VIP A single virtual address that provides transparent public access to network services running on a list of nodes The nodes can be configured to distribute the load per service and you can fine tune unique application and site needs in a variety of ways U42120 J Z100 3 76 7 SIS overview Introduction e PROXY A virtual address that provides public access to all network services on a single node without accessing the node directly e PRIVATE A virtual address that provides protected access to all network services running on a single node from within the cluster SIS eliminates single points of failure and ensures availability as follows e f any of the SIS nodes or services fail SIS schedules requests around the failed nodes VIP e VIP and PROXY allow the definition of failover nodes that will provide the services in case the primary service node or nodes fail e After a failed node or service is restarted it will seamlessly become available again to restore maximum performance of the SIS cluster e Important internal functions of SIS namely gateway nodes and database nodes recover transparently in case of failures This includes failure of a public network interface card NIC The sections that follow discuss the various types of SIS nodes 2
45. TM100 TM10 Operating Manual U42120 J Z100 3 76 3 Conventions Preface e PRIMEPOWER User s Manual operating manual Your sales representative will need your operating system release and product version to place your order 1 3 Conventions To standardize the presentation of material this manual uses a number of notational typographical and syntactical conventions 1 3 1 Notation This manual uses the following notational conventions 1 3 1 1 Prompts Command line examples that require system administrator or root rights to execute are preceded by the system administrator prompt the hash sign Entries that do not require system administrator rights are preceded by a dollar sign In some examples the notation node indicates a root prompt on the specified node For example a command preceded by fuj i2 would mean that the command was run as user root on the node named fuji2 1 3 1 2 Manual page section numbers References to the operating system commands are followed by their manual page section numbers in parentheses for example cp 1 1 3 1 3 The keyboard Keystrokes that represent nonprintable characters are displayed as key icons such as Enter or F1 For example Enter means press the key labeled Enter Cirl b means hold down the key labeled Ctrl or Control and then press the key 4 U42120 J Z100 3 76 Preface Conventions 1 3 1 4 Typefaces The following typefaces highlig
46. abase Node option to add a backup database node This brings up the Add Backup DBs window see Figure 79 Select a backup database form the Candidates window and click on Apply Cluster Admin xj pAdd Backup DBs Primary Database fuji2 Backup DBs Candidates fuji3 Ok Apply Cancel Help Java Applet Window Figure 79 Add Backup DBs window Satellite node The Satellite node menu option offers the following choices e Expel Satellite Nodes from the Cluster Removes satellite nodes from the SIS cluster e Activate Satellite Nodes Joins expelled satellite nodes to the SIS cluster U42120 J Z100 3 76 Adi Administering with Cluster Admin Administration Select Expel Satellite Nodes from the Cluster A window appears that lists the available satellite nodes in the cluster see Figure 80 ES Operations on Satellite Nodes Expel Satellite Nodes from the Cluster Selecte satellite nodes from the list Allocated SIS services Java Applet Window Figure 80 Expelling satellite nodes Select the satellite nodes to be expelled from the left panel The right panel displays all the services allocated on the selected node Click on the Ok button to expel the selected satellite nodes qa U42120 J Z100 3 76 Administration Administering with Cluster Admin Select Activate Satellite Nodes A window appears that lists the expelled satellite nodes
47. addresses used by the SIS cluster The hash mark indicates a comment Everything following the hash mark is ignored until End of Line EOL 18 U42120 J Z100 3 76 Configuration Configuration file 3 2 1 Variables The graphical user interface Cluster Admin does not support assignment or management of variables This section is only applicable if configuration files are edited manually This section if present must be the first section in the configuration file A variable declaration has the following syntax variable_name string_0 string_n A variable declaration provides a string substitution mechanism which makes it more convenient to confine changes in the configuration to a single location For example you can define a group of nodes in the variable section of the config uration file without having to change service definitions in the body of the VIP definition Rules and limitations The following rules and limitations apply to variable definitions e Variable definitions are evaluated only once so their sequence is important If as in the following example A X X fuji2 B X then in the sections of the configuration file that follow A will resolve to X but B will resolve to fuji2 e The following characters can be used by a variable definition All letters and numbers including underscores _ dashes and spaces Parentheses may be used but only if they contain a FA
48. ame udp AVAILABLE 0 0 mss sf ava Applet Window Figure 62 Service window showing node details 100 U42120 J Z100 3 76 Administration Administering with Cluster Admin 6 1 2 Using the menu bar The menu bar of the SIS GUI offers some additional features as detailed in the following sections 6 1 2 1 File The File menu provides the Exit option Exit Select Exit to leave Cluster Admin see Figure 63 ES Cluster Admin an Service Summary Table Chart Interfaces Node Name State Con Count Suspend A Services y fuji AVAILABLE fuji AVAILABLE name udp fuji2 AVAILABLE ava Applet Window Figure 63 File menu U42120 J Z100 3 76 101 Administering with Cluster Admin Administration 6 1 2 2 Tools The Tools menu offers the following options see Figure 64 Start Stop Pause Resume Switch Gateway Node Add Backup Database Node Satellite node Wizard ES cluster Admin TES File Help F Start gt f Sg Senice Summary Table Chart Serice Node Name State Con Count Suspend hwwrw httpitep fuji3 AVAILABLE o joo Resume Switch Gateway Node Add Backup Database Node Satellite Nodes gt Wizard hame udp fuji3 AVAILABLE 0 hame udp fuji2 AVAILABLE 0 0 Cao 8 0 Java Applet Window Figure 64 Tools menu
49. backup database node no changes to the node are made Changes the gateway node for the VIP address vip_address to the gateway node gateway_node Pauses SIS on all nodes freeze When dtcpadmin f is executed all incoming packets are ignored This can lead to dropped connections Resumes a paused SIS program warm up Displays the SIS configuration of the local node Displays the current SIS configuration in a parsable format U42120 J Z100 3 76 119 Administering with the CLI Administration dtcpadmin T UDP_timeout dtcpadmin d debug_level dtcpadmin q dtcpadmin t config_file dtcpadmin v dtcpadmin h Sets the value of the UDP timeout If entered without the UDP_timeout the current value is printed For UDP SIS measures the interval between data packets from a client for the same service Data packets that arrive within the timeout are considered to be part of the same UDP pseudo connection Data packets that arrive after this interval are treated as a new pseudo connection The default value is 5 seconds Sets debug level 0 to 5 SIS displays the messages on the system console Refer to the Section SIS daemon for redirection infor mation Debug levels are as follows e 0 displays maximum debug information e 1 through 4 display varying degrees of debug information e 5 displays critical information default This command can be used in combi
50. d Modify Remove Java pplet Window Figure 28 Define PRIVATE addresses window U42120 J Z100 3 76 57 Creating a new configuration file Configuration After entering the required data save the information by selecting Add Figure 28 shows the window to define a PRIVATE address and Figure 29 shows the window to create a PROXY address Basis Wizard Create a new Proxy Address by completing the form and pressing Add Modify an existing Proxy Address by selecting the appropriate Proxy Addresses entry changing the form attributes and pressing Modify Delete a Proxy Address by selecting the appropriate Proxy Addresses entry and pressing lol x Remove ar Proxy Addresses 1 El SIS Hode www abe com HostiP 28 vip A eri Netmask J55 255 255 0 y 29 Private re g Proxy Node fuji3 v Failover Nodes fyji2 berlin munich sidney toronto Pref Gww ESA Add Modify Remove Java Applet Window Figure 29 Create PROXY addresses 58 U42120 J Z100 3 76 Configuration Creating a new configuration file Once the PROXY or PRIVATE configurations are done the information is added to the list on the left portion of the window and the complete configuration window appears see Figure 30 GASIS Wizard Lol xi You may 1 choose to edit more interfaces 2 save th
51. d by inetd To restart these services you need to restart the inetd m To kill the inetd use a local console to log into the node 136 U42120 J 2100 3 76 9 Manual pages This chapter lists the online manual pages for SIS To display a manual page type the following command man man_page_name 1M System administration dtcpadmin 1M administer SIS dtcpd 1M start the SIS daemon for configuring VIPs dtcpdbg 1M display debug information about SIS dtcpnfd 1M Netcard monitor daemon dtcpstat 1M display status of connections within SIS U42120 J Z100 3 76 137 Manual pages 138 U42120 J 2100 3 76 Index A activating satellite nodes 111 administering SIS CLI 118 Cluster Admin 87 assigning external connectivity 14 Available 98 123 B backup database nodes See database nodes blade servers 75 Cc checking syntax 107 CLBASED 22 client based algorithm 13 Cluster Admin 15 administering 87 configuring 28 main administration window 87 starting SIS 103 Cluster Foundation 17 adding nodes 37 interconnect 18 with PRIVATE address 18 cluster name Linux satellite 82 Solaris satellite 82 Windows 2000 satellite 76 Clusterwide Operations menu 103 clusterwide summary table 87 CONCOUNT 23 configuration file creating 113 editing 113 example 70 GATEWAYS 20 NODES 20 reloading 104 syntax rules 129 variables 19 viewing 105 configuration wizard 105 configuring Cluster A
52. de core nodes only e The node has been expelled from the cluster satellite nodes only e The configured service has been inactivated on the node VIP only 14 U42120 J Z100 3 76 Introduction Cluster Admin 2 9 Cluster Admin Cluster Admin is an administrative graphical user interface GUI that is reached through Web Based Admin View For creating and editing configuration files Cluster Admin contains a SIS configuration wizard Cluster Admin can manage the following SIS procedures e Configuration wizard e Administration e Operations and diagnostics services A Java enabled Web browser serves as the administrative interface a i conventional command line interface CLI is also available To provide a consistent configuration we recommend using Cluster Admin as opposed to the CLI U42120 J Z100 3 76 15 Cluster Admin Introduction 16 U42120 J Z100 3 76 3 Configuration This chapter describes the configuration syntax for SIS and it provides examples of configuration files to assist users with the configuration process In addition it describes how to configure SIS using the Cluster Admin GUI This chapter discusses the following e The Section Concepts introduces some basic concepts for SIS e The Section Configuration file provides a description of the configuration file including variable assignments node and gateway declarations and interface definitions e The Section
53. defined as one of the following node weight ServiceNodeList FAILOVER ServiceNodeList weight The addition of a weight to a list member will recalculate the number of open connections of this node before it is compared This allows to give a preference to certain nodes A node with a higher weight will appear to have fewer open connections and may be selected more often than a compara tively less busy node with a lower weight A default value of 1 is assumed if no weight is given U42120 J Z100 3 76 23 Configuration file Configuration The following example shows a weighted connection count SERVICE definition that schedules telnet among different nodes SERVICE telnet CONCOUNT fujil 2 fuji2 fuji3 3 fuji4 FAILOVER fuji5 4 In this example fuji 4 will be selected 50 of the time if all of the nodes are of similar power and have similar connection loads because fuji4 is now the node with a weight of 4 If the definition of a weighted connection count contains variables the il weight including the colon cannot be part of the variable The variable facility provides simple string substitution You can substitute variables as follows A fuji2 fuji3 B fuji4 FAILOVER fuji5 SERVICE telnet CONCOUNT fujil 2 A 3 B 4 ll This example will therefore resolve to the following SERVICE telnet CONCOUNT fujil 2 fuji2 fuji3 3 fuji4 FAILOVER fuji5 4 ServiceNodeList as used in most of the preceding scheduling algori
54. details of the service The right panel shows the following details see Figure 54 e Service Name Ports The name the service and the protocol which is either tcp or udp e Scheduling The scheduling algorithm for the service e Details of the service ES Cluster Admin TES File Tools Help FUJI Q EH Nodes Service Name Ports name udp e EH rujia El tuji2 Scheduling CLBASED 33 mycompany com nameludp Service View 0 Table Chart www httpitep t a Dun gee Service Node Name State Con Count Suspend z 135 fuji2 name udp fuji3 AVAILABLE 0 ur ai name udp fuji2 AVAILABLE 0 0 EH berlin E munich a sidney toronto 22 Interfaces Aj services Java Applet Window Figure 54 Node view showing interface details 92 U42120 J 2100 3 76 Administration Administering with Cluster Admin Interfaces view Click on the Interfaces branch on the SIS configuration tree on the left to see the configured interfaces see Figure 55 This view shows a table of all of the inter faces with the following details e Name e Interface Type e IP Address e Mask netmask lexis Admin x File Tools Help g FUJI e Interface Summary Table e j e Name Interface Type IP Address Netmask oa tac fuji3RMS Private 192 168 1 2 255 255 255 0 m Senices fuji2RMS Private 192 168 1 1 255 255 255 0 199 181 135 20
55. dmin 28 SIS Wizard 34 text editor 18 connection count weighted 23 creating a configuration file 113 D daemon SIS 126 database nodes 67 backup 9 17 102 primary 9 66 reconfigure 66 satellites 73 DCL 22 25 55 FTP 26 GUI button 48 DEBUG 134 Debug menu 101 debug messages displaying 127 debug_level 134 debugging 135 displaying debug messages 127 133 interfaces 90 SIS 121 status by node 122 status by service 122 documentation 2 dtcpadmin 118 command 118 options 120 dtcpd 126 dtcpdbg 127 133 dtcpstat 121 126 E editing the configuration file 113 U42120 J Z100 3 76 139 Index expelling satellite nodes 111 F FAILOVER 25 failover defining scheduling 49 NIC 83 nodes 14 56 PROXY 27 proxy addresses 14 26 File menu 101 FIP 26 55 G gateway nodes concepts 17 description 8 NIC failover 83 satellites 73 TCP 22 GATEWAYS 20 H Help menu 115 l interconnect 18 interface definitions 21 PRIVATE 27 VIP 21 VIP body 21 interfacedef 21 interfaces details 99 node view 91 92 Interfaces view 93 IP addresses 21 K keep local algorithm 13 KEEPLOCAL 22 L level 134 Linux NIC bonding 83 LOG 134 M main administration window 87 manual pages list 137 menus Clusterwide Operations 103 Debug 101 File 101 Help 115 Tools 102 Wizard 113 N netmask 21 Network Interface Card 83 gateway node 83 service node 83 NIC See Network Interface Card NIC failover 83 module 83 84 monitor
56. e Ifthe packet s destination is the virtual interface the packet is x 4 E Done l BR Local intranet Us a Nade Panin Figure 84 Help contents 116 U42120 J Z100 3 76 Administration Administering with Cluster Admin Selecting About reveals the version details of all of the packages installed on the node including Cluster Admin see Figure 85 ES Cluster Admin xj d Fujitsu Siemens Computers Inc Cluster Administration SMAWrcadm V4 142018 Cluster Foundation SMAWcf V4 142013 PRIMECLUSTER Reliant Monitor Services SMAWRrms V4 142022 Scalable Internet Services SMAWdtcp V4 142511 Web Based Fault Resource Message GUI and Commands FJSVwwfrm 4 1 1 Cluster Administration Japanese Language Support SMAWrcaja 4 1 216 Ok lava Applet Window Figure 85 About option U42120 J Z100 3 76 117 Administering with the CLI Administration 6 2 Administering with the CLI Use the dtcpadmin command to administer SIS from the command line CLI The dtcpadmin command starts stops and reconfigures SIS as well as performing other administrative functions The following list shows the dtcpadmin options and their meanings dtcpadmin s dtcpadmin u dtcpadmin r config_file Starts SIS on the local node Run this command on all nodes in the SIS cluster that are not database nodes Stops SIS on the local node This command will fail on a database node if there
57. e Tools menu and the SIS Startup Menu pop up window appears see figure Figure 7 with the following options e Search all configuration files Allows you to load a pre saved configuration file and start SIS with that configuration This option is also available after you have stopped SIS by means of the Stop option refer to the Section Tools e Start configuration wizard Invokes the SIS configuration wizard to create a new configuration SIS Startup Menu xi FSIS Startup Selection a Search all configuration files Start configuration wizard Java Applet Window Figure 7 SIS startup selection U42120 J Z100 3 76 33 Creating a new configuration file Configuration 3 4 Creating a new configuration file After selecting Start configuration wizard from the SIS Startup Menu the welcome window appears see Figure 8 Click on the Next button to move on to the next window Refer to the Section Concepts for details on all of the terminology used gasis Wizard lol xi Welcome to the SIS Configuration Wizard This wizard is a graphical tool for generating SIS configuration file The wizard will guide you step by step to create or modify SIS configuration The wizard will help you test and start SIS with the new generated configuration Cancel Back Next Help Java Applet Window Figure 8 SIS Wizard welcome window 34 U42120 J 2100 3 76
58. e SIS configuration with three core nodes a Linux satellite node and a Windows 2000 satellite node in the cluster Cluster interconnect A A A SSS A Z Z Z Z Z Z Z Z 4 A Z Linux Windows 2000 satellite satellite node node Core nodes Figure 42 SIS cluster with satellite nodes 4 2 Software SIS satellite nodes run on the following hardware and software combinations e Standard Intel based hardware running the following versions of Linux SuSe SLES 7 and SLES 8 United Linux Redhat Advance Server 2 1 e Standard Intel based hardware running the following versions of Windows Windows 2000 Advanced Server Windows 2000 Server Windows 2000 Professional e Solaris 8 OE or Solaris 9 OE 74 U42120 J Z100 3 76 Satellite nodes Hardware 4 3 Hardware The hardware requirements for SIS clusters with satellite node are as follows e The recommended satellite node platform is the Fujitsu Siemens Computers BX300 blade server e Itis expected that both core nodes and satellite nodes have a direct connection to the internet e Core nodes discover satellite nodes by broadcasting For this reason at least one interface for all the nodes in the SIS cluster should be on the same Ethernet segment Figure 43 shows a supported configuration in which all the core nodes and the satellite nodes share a common Ethernet segment Cluster interconnect al 1 Satellite nodes
59. e configuration window see Figure 35 Enter a file name in the File name text box Selectthe Start SIS with the new created configuration check box if you also want to activate the new configuration Click on the Next button Basis Wizard lol xi You may save the configuration by specifying the appropriate filename Additionally you may choose to update SIS using this configuration by clicking the Reconfigure radio button Click Next to continue the operation aj Save to JetciopySMAWISMAWdtcp GATEWAYS fuji3 fuji2 E File Hame sis_fsc IP www mycompany com 255 121 start SIS with the new created configuration SERVICE Idap 389 tcp ROUNL 7 SERVICE name 42 Wudp CLBAJ SERVICE 80 tcp CLBASED fu f PROXY www abc com 255 255 4 PRIVATE 192 168 1 2 255 255 2 E PRIVATE 192 168 1 1 255 255 2 E Cancel Back Next Help Java Applet Window Figure 35 Save configuration window 64 U42120 J Z100 3 76 Configuration Creating a new configuration file Clicking on the Next button after entering the filename takes you to the S S Wizard completed window as shown in Figure 36 Click the Finish button to exit from the wizard gasis Wizard uf x Below are the results of the save restart operation GATEWAYS fuji3 fuji2 sis_fsc was saved to fuji2 JetcioptiSMAWISMAWdtcp IP weww mycompany com 255 14 SIS is not restarted SERVICE Idap 389 tcp ROUN
60. e current configuration wi the error checking feature or 3 save the current configuration without doing the error check by selecting the appropriate radio button Click Next to continue GATEWAYS fuji3 fuji2 VIP weww mycompany com 255 12 f SERVICE Idap 389tcp ROUN SERVICE name 42 udp CLBA SERVICE 80 tcp CLBASED fi 8 Add Edit Interface y Save file with error check PROXY www abc com 255 255 2 Save file without error check PRIVATE 192 168 1 2 255 255 2 PRIVATE 192 168 1 1 255 255 2 Java Applet Window Figure 30 Creating additional addresses We recommend that you first assign a PRIVATE address for each node in the cluster After you have finished creating all of the PRIVATE addresses you can create PROXY addresses in the same manner This is done by clicking on the Next button to continue creating the configuration file and choosing from the following options see Figure 31 e Add Edit Interface e Save file with error check e Save file without error check U42120 J Z100 3 76 59 Creating a new configuration file Configuration Select Add Edit Interface to continue adding VIP PRIVATE and PROXY addresses After you have finished all configurations you will return to the complete configuration window to save the file with or without an error check see Figure 31 The example configuration file would look similar to the following NODES fuji2 fuji3 GATEWAYS fuji2 fuji3 V
61. e itself not any failed service e preferred_gateway is an optional node name that indicates which node should receive incoming data for the IP address e IPAddress can be a name dot notation or hexadecimal notation The following are valid examples of PROXY configurations PROXY ftp mycompany com 255 255 255 0 fujil PROXY ftp mycompany com 255 255 255 0 fujil FAILOVER fuji2 PROXY ftp mycompany com 255 255 255 0 fujil fuji3 PROXY ftp mycompany com 255 255 255 0 fujil FAILOVER fuji2 fuji3 In the first example packets destined for ftp mycompany com are sent to fujil In the second example packets destined for ftp mycompany com are sent to fujil but if fujil fails all the packets for ftp mycompany com are sent to fuji2 The third and fourth examples are like example 1 and 2 but fuji3 acts as the preferred gateway node for ftp mycompany com 3 2 4 3 PRIVATE addresses The PRIVATE internal interface is used for communication among the nodes in the cluster When you configure a PRIVATE address for a node SIS creates a virtual interface on the interconnect network The PRIVATE address cannot be accessed from the outside PRIVATE has the following syntax PRIVATE IPAddress netmask PRIVATENode For example if fuji2 and fuji3 are the only nodes of the cluster then they can be defined in the configuration file as follows PRIVATE 192 168 0 1 255 255 255 0 fuji2 PRIVATE 192 168 0 2 255 255 255 0 fuji3 U42120 J Z100
62. ed see Figure 41 SIS Startup xi SIS Clusterwide Startup File List Database Node Dir JetclopuSMAWWISMAWdtcp fuji3 v Sareme 3 sgj 3 sgj2 sis Ey sis fsc Ey sis 1 El sis la sis ttest sis_cluster sis_config_2 sis_dtcp sis_tsc Ey sis_fujis Backup Database Nodes Selection fuji2 ray Java Applet Window Figure 41 Primary Database Node selection list To enable the configuration file perform the following 1 Select the primary database node from the list from the selection box 2 Choose one or more nodes from the Backup Database Nodes table by clicking on the Selection check box for the node 3 Click on Check to check the file for syntax errors 4 A small window indicates whether the error check passed or failed Select OK to return to the SIS Clusterwide Startup window 5 Select the OK button SIS starts on all nodes in the correct order 70 U42120 J 2100 3 76 Configuration Examples and configuration files 3 6 Examples and configuration files The following are example scenarios and their corresponding configuration files These examples are provided to illustrate how an actual configuration file would look however an actual configuration file should use the IP addresses for the cluster being configured not the ones that appear in these examples Example 1 This example shows an LDAP server 1 dap mycompany com on a two node cluster
63. ellite nodes SIS cluster nodes can connect with other cluster nodes by means of CF or they can join the SIS cluster as cluster members without CF A core node connects to a SIS cluster using CF while satellite nodes do not use CF The following properties differentiate the two types of nodes e Core nodes are aware of other nodes in the cluster and can be any of the various types of SIS nodes e Satellite nodes can only be service nodes e SMAWcf must not be installed on a satellite node e Windows 2000 nodes can only be used as satellite nodes U42120 J Z100 3 76 9 Benefits Introduction Figure 1 illustrates a five node SIS configuration that has three core nodes one Linux satellite node and one Windows 2000 satellite node Refer to the Chapter Satellite nodes for more information Cluster interconnect Linux satellite Windows 2000 node satellite node Database Backup Service node database gateway node node Figure 1 SIS cluster with satellite nodes 2 3 Benefits The benefits of SIS are as follows e Provides scaling and load balancing for network services e Allows network access to a group of servers through one address e Supports multiple scheduling options for fine tuned granular load balancing No fixed scaling limits No hardware under utilization e Supports all TCP IP protocols http ftp proxy SSL POP3 and SMTP e Supports the UDP protocol e Offers highly available seamless
64. ervices that is VIP or PROXY then the node name must be in the GATEWAYS list 20 U42120 J 2100 3 76 Configuration Configuration file 3 2 4 Interface definitions Interface definitions can be of the following types e VIP e PROXY e PRIVATE Interface definitions can appear in any order but they may not be contained in one another 3 2 4 1 VIP A VIP provides a public address for selected services that are provided by the service nodes of a SIS cluster The client requests are transparently assigned to a service node according to a predefined scheduling algorithm The syntax is as follows VIP interface_1 interface_n vip_body y The following terms and conditions apply e interface has the form IPAddress netmask preferred_gateway IPAddress is a resolvable name or IP address netmask is the netmask associated with IPAddress preferred_gateway is an optional node name that indicates which node should receive incoming data for the VIP address e PAddress can be a name dot notation or hexadecimal notation The following are examples of valid interface definitions www siscluster com 255 255 255 0 fuji2 www clustersis com 255 255 255 0 VIP body The body of the VIP defines the network services available on this VIP and how client requests for these services are to be scheduled Each service is defined on a separate line A service definition has one of the following formats e SERVICE portde
65. eway Service UP Node Name Service State Con Count Suspend ifuji3 veww htipitep AVAILABLE uji3 name udp AVAILABLE O 32 199 181 135 201 A Senices Java Applet Window Figure 57 Interface window with nodes and services U42120 J Z100 3 76 95 Administering with Cluster Admin Administration Click on a service to see its details see Figure 58 The right panel shows the following e Service Name Ports The name the service and the protocol which is either tcp or udp e Scheduling The scheduling algorithm for the service e Details of the service ES Cluster Admin File Tools Help B FUJI 8 Nodes Service Name Ports namejudp E interfaces Q mycompany com Scheduling CLBASED e El tujia e El miz Service View 8 Table Chart A namejudp k wnwnwehitpltep namejudp Serice NodeName State Con Count Suspend e fuji2RMS EB fuji2 name udp fuji3 AVAILABLE 0 o 5 fuji3RMS name udp fuji2 AVAILABLE 0 0 32 199 181 135 201 A Senices msan Java Applet Window Figure 58 Interfaces window with service details 96 U42120 J Z100 3 76 Administration Administering with Cluster Admin Services view To view the services click on Services in the SIS configuration tree in the left panel This displays the services configured in the c
66. f scheduling e SERVICE portdef DCL scheduling U42120 J Z100 3 76 21 Configuration file Configuration portdef defines a port or range of ports network service and a protocol in the following format port protocol The protocol can be either tcp or udp If you do not specify a protocol the default is tcp port defines the network service and can be any of the following e Number such as 80 e Range of numbers such as 1 17 e Symbolic name such as http from etc services or other resolution schemes e Range of symbolic names from etc services or other resolution schemes The following are examples of portdef e 80 tcp e http e 8080 8090 udp e sunrpc udp DCL depends on client directs SIS to remember a client such that all connec tions of the client for that service will go to the same node The first connection is scheduled based on the scheduling algorithm for example ROUNDROBIN or SYSLOAD Scheduling for services scheduling defines how incoming requests from clients get assigned to the list of nodes that provide the service The following algorithms are available e Keep local A connection request to this service will be established on the gateway node itself with little overhead The syntax is as follows KEEPLOCAL e Client based The service node is calculated based on the client s IP address The syntax is as follows CLBASED ServiceNodeList e System load The node with the lowest syste
67. fail on one or more nodes from node_a node_m then a functional node from node_n node_z will replace the failed nodes When the failed node or service becomes available the sched uling reverts back to the original node Examples of FATLOVER for a VIP can be found in the examples for various scheduling algorithms Only one node will be used to replace all failed nodes within the same FATLOVER declaration even if more than one replacement node is defined as in the above syntax DCL DCL is an optional qualifier which can be used after the portdef of a SERVICE definition Its function is to bind all further connections for a client to the same server once the very first connection has been selected according to the sched uling algorithm for this SERVICE The following are examples for the use of DCL SERVICE ftp DCL ROUNDROBIN fuji2 fuji3 SERVICE 8080 8090 udp DCL ROUNDROBIN fuji2 fuji3 U42120 J Z100 3 76 25 Configuration file Configuration FTP notes SIS supports the FTP protocol for VIP with the following special limitations e You can configure port 21 ftp but not port 20 ftp data Service decla rations that include port 20 will be rejected e You can configure KEEPLOCAL and CLBASED service for port 21 without restrictions e The use of the DCL qualifier is mandatory for port 21 SERVICE declarations with scheduling algorithms other than KEEPLOCAL and CLBASED The following are valid configurations
68. failover 0 2 2 2000 14 ClusterAdmin 0 0 a eee eee ee 15 Configuration ociosos ee a eee eee eas 17 COnCeptS s 24 44 Adah dba be ae dob a bP awe dh oo 17 Configurationtle s ceo p a oad ek ae hae A dake gale 18 Variables a ew ws ce dea ers a Ew i a we Ge Si 19 NODES declaration 0 0 20 GATEWAYS declaration 20 Interface definitions 2 08 4 21 MIP a eae we ek Re A ew ew BG aed 4 Se 21 PROXY addresses 2 2000 26 PRIVATE addresses 20 2 00008 27 Configuring with Cluster Admin 2 28 U42120 J Z100 3 76 Contents 3 3 1 3 3 2 3 3 3 3 4 3 4 1 3 4 2 3 4 3 3 4 3 1 3 4 4 3 5 3 6 StartingiSIS vii a man a heeded Be ea og 28 Logging in to Cluster Admin 04 28 Displaying the SIS GUI main window 33 Creating a new configuration file 34 AGGING MODES I aai lt 3 a clio Boe pedra Bl wre de Bod o Ae 37 Configuring satellite nodes 2 4 38 Defining VIP PROXY and PRIVATE addresses 42 VIPS adie ae ane ea ee a ae bok we Hae ae 43 Completing the configuration 0 61 Starting with an existing configuration fle 68 Examples and configuration files 70 Satellite nodes 73 OVENVIEW oa aa e A a ea we 73 SOMWATS 64 42 ae 4 a A A Be N E 74 Hardware coa a soe e oR a A e we ee
69. figuration file name in the left panel tree q SIS Clusterwide Startup File List Database Node Dir jetclopuSMAwWWsMAwWdtep fujis 3 sgj2 Backup Database Nodes Ef sis Nodes Selection EY sis fsc fuji2 m g sis 1 g sis 1a sis 1test 3 sis_cluster E sis_config_2 B sis_dtcp Ok Cancel Help Java Applet Window Figure 69 Startup options U42120 J Z100 3 76 105 Administering with Cluster Admin Administration vev 6 6 6 ll NODES fuji3 fuji2 berlin munich sidney toronto GATEWAYS fuji3 fuji2 VIP vwww mycompany com 255 255 255 0 389 tcp gt Idapitcp 42 udp gt name udp PRIVATE 192 168 1 2 255 255 255 0 fuji2 PRIVATE 192 168 1 1 255 255 255 0 fuji3 SERVICE 389 tcp ROUNDROBIN fuji3 FAILOVER berlin SERVICE 42 udp CLBASED fuji2 FAILOVER fuji3 SERVICE 80 tcp CLBASED fuji2 FAILOVER fuji3 PROXY www abe com 255 255 255 0 fuji2 FAILOVER munich ox Java Applet Window Figure 70 View configuration file window Click on one of the nodes to select a predefined configuration file You can also make selections for the primary and backup database nodes for the configu ration on the right panel see Figure 71 After making all of the selections the Check button becomes active Click on the Check button to perform a syntax check on the selected configuration file SIS Startup xi 818 Cluste
70. g command and answers some common configuration and administration questions e The Chapter Manual pages lists the manual pages for SIS U42120 J Z100 3 76 1 Related documentation Preface 1 2 Related documentation The documentation listed in this section contains information relevant to PRIMECLUSTER and can be ordered through your sales representative In addition to this manual the following manuals are also available for PRIMECLUSTER e Release notices for all products These documentation files are included as HTML files on the PRIMECLUSTER Framework CD Release notices provide late breaking information about installation configuration and operations for PRIMECLUSTER Read this information first e Concepts Guide Solaris Linux Provides conceptual details on the PRIMECLUSTER family of products e Installation Guide Solaris Provides instructions for installing and upgrading PRIMECLUSTER products e Installation Guide Linux Provides instructions for installing and upgrading PRIMECLUSTER products e Reliant Monitor Services RMS with Wizard Tools Solaris Linux Configuration and Administration Guide Provides instructions for configuring and adminis tering RMS using PRIMECLUSTER Wizard Tools e Reliant Monitor Services RMS with PCS Solaris Linux Configuration and Administration Guide Provides instructions for configuring and adminis tering RMS using PRIMECLUSTER Configuration Services P
71. ht specific elements in this manual Typeface Usage Constant Computer output and program listings commands file Width names manual page names and other literal programming elements in the main body of text Italic Variables that you must replace with an actual value Bold Items in a command line that you must type exactly as shown Typeface conventions are shown in the following examples 1 3 1 5 Example 1 Several entries from an etc passwd file are shown below root x 0 1 0000 Admin 0000 sbin ksh sysadm x 0 0 System Admin usr admin usr sbin sysadm setup x 0 0 System Setup usr admin usr sbin setup daemon x 1 1 0000 Admin 0000 1 3 1 6 Example 2 To use the cat 1 command to display the contents of a file enter the following command line cat file U42120 J Z100 3 76 5 Important Preface 1 3 2 Command syntax The command syntax observes the following conventions Symbol Name Meaning Brackets Enclose an optional item Braces Enclose two or more items of which only one is used The items are separated from each other by a vertical bar I Vertical bar When enclosed in braces it separates items of which only one is used When not enclosed in braces it is a literal element indicating that the output of one program is piped to the input of another Parentheses Enclose items that must be grouped together when repeated
72. ing 84 restarting 85 starting 85 node_name 122 NODES 20 nodes database 73 details 90 95 100 gateway 73 satellite 9 73 view 89 Windows satellite 76 NOTICE 134 oO operations on individual nodes 108 P PANIC 134 pausing SIS 107 prefgateway 21 140 U42120 J Z100 3 76 Index primary database nodes See database nodes PRIVATE 27 private addresses 14 27 PROXY 26 proxy addresses 14 26 R reconfiguring SIS 118 redirect 133 reloading configuration files 104 restoring the configuration 107 resuming SIS 108 round robin algorithm 13 ROUNDROBIN 23 S satellite nodes 73 activating 111 differences from core nodes 9 expelling 111 hardware 74 menu options 111 overview 9 setting up 76 software 74 Windows 76 scalability network services 7 SIS 7 scheduling 22 scheduling algorithms CLBASED 22 CONCOUNT 23 KEEPLOCAL 22 ROUNDROBIN 23 SPILLOVER 23 SYSLOAD 22 service 122 service nodes client based 22 concepts 17 description 8 NIC 83 VIPs 21 Services view 97 SIS daemon 126 network services 7 starting 118 status 121 stopping 118 SIS configuration tree 87 88 SIS Wizard completed 64 node selection screen 41 Solaris IP multipathing 83 specifying Linux satellite cluster name 82 Solaris satellite cluster name 82 Windows satellite cluster name 76 spill over algorithm 13 SPILLOVER 23 starting individual nodes 108 NIC failover module 85 SIS daemon 126 starting SIS CLI 118 Cluster Admin 1
73. ing up satellite nodes The properties window forthe VIP adapter Local Area Connection appears see Figure 47 Local Area Connection 114 Properties 2 x General Sharing Connect using 8 Fujitsu Siemens VIP Adapter Components checked are used by this connection a Client for Microsoft Networks vi a Fujitsu Siemens ipsniff v a File and Printer Sharing for Microsoft Networks v 4 Y Fujitsu Siemens Tepsnitt Install Uninstall Properties Description Allows your computer to access resources on a Microsoft network I Show icon in taskbar when connected Figure 47 VIP adapter properties window Click on the Configure button U42120 J Z100 3 76 79 Setting up satellite nodes Satellite nodes The Fujitsu Siemens VIP Adapter Properties window appears see Figure 48 Fujitsu Siemens YIP Adapter Properties Satelite Node Driver Help Figure 48 Fujitsu Siemens VIP Adapter Properties window Click on the Satellite Node tab 80 U42120 J Z100 3 76 Satellite nodes Setting up satellite nodes The Satellite Node properties window for specifying the cluster name appears see Figure 49 If the Connect to any cluster check box is selected then the cluster name will not be set and the satellite node will join the first cluster from which it receives a broadcast message Fujitsu Siemens YIP Adapter Properties EE
74. io button and click Next This returns a pop up box with the error check result of either OK see Figure 32 or Error see Figure 33 4023 Error check passed ox Java Applet Window Figure 32 Error check result window OK An error only occurs if an IP address or service name is not resolvable or if you are editing a configuration file that already contained an error 4022 There are errors in this configuration o Java pplet Window Figure 33 Error check result window Error Configuration Creating a new configuration file Click on the OK button to see the details of the syntax check in the right hand side panel see Figure 34 The left panel shows the configuration that you created GASIS Wizard olx Below are the results ofthe error check GATEWAYS fuji3 fuji2 IP www mycompany com 255 Addresses IP 208 239 76 34 Mwwww mycompany com Mask 255 255 SERVICE Idap 389 tcp ROUN SERVICE name 42 udp CLBA SERVICE 80 tcp CLBASED fl Defines 389 389 RoundRobin fuji3 FAILOVER berlin 42 42 ClientBased fuji2 FAILOVER fuji3 80 80 ClientBased fuji2 FAILOVER fuji3 PROXY www abe com 255 255 2 PRIVATE 192 168 1 2 255 255 2 PRIVATE 192 168 1 1 255 255 21 DTCP BackEnd done Java Applet Window Figure 34 Error check result window U42120 J Z100 3 76 63 Creating a new configuration file Configuration Click on the Next button to go to the sav
75. llite node button to add satellite nodes The Satellite Node Definition window appears see Figure 12 Eg satellite Node Definition xj Satellite node Ada Remove Browse Ok Cancel Java Applet Window Figure 12 Adding satellite nodes You can manually add satellite nodes into the SIS cluster by clicking on the Add button or you can choose from a list of available nodes by clicking on the Browse button 38 U42120 J 2100 3 76 Configuration Creating a new configuration file Manually adding nodes Click on Add and the Add Satellite Nodes popup window appears Enter a set of node names into the text area Use spaces or commas to separate node names see Figure 13 Add Satellite Nodes x 1 Input node names Use space or comma to separate node names berlin munich sidney toronto Java Applet Window Figure 13 Manually adding satellite nodes Click on the OK button to add the satellite nodes to the configuration U42120 J Z100 3 76 39 Creating a new configuration file Configuration Selecting nodes from file list This feature allows Cluster Admin to evaluate regular configuration files or files with the sat extension These files must be in etc opt SMAW SMAWdtcp The Browse option see Figure 14 extracts a list of node names by reading either selected files all files of a selected node or all files on all nodes of the cluster From the list y
76. lowing dtcpstat n Node d Local Address Foreign Address Gateways 0 0 129 214 20 119 513 129 214 214 22 965 0 0 129 214 20 119 23 129 214 214 22 1141 0 1 0 129 214 20 119 23 129 214 214 28 54108 0 1 129 214 20 119 513 129 214 214 28 1015 0 dtcpstat fujil Node Id Local Address Foreign Address Gateways fujil 0 www mycompany com login clientl eng pyra 965 fujil fujil 1 www mycompany com telnet clientl eng pyra 1141 fujil dtcpstat 23 Node Id Local Address Foreign Address Gateways fujil 1 www mycompany com telnet clientl eng pyra 1141 fujil fuji2 0 ww mycompany com telnet client2 eng pyra 54108 fujil dtcpstat telnet Node Id Local Address Foreign Address Gateways fujil 1 www mycompany com telnet clientl eng pyra 1141 fujil fuji2 0 www mycompany com telnet client2 eng pyra 54108 fujil U42120 J Z100 3 76 125 SIS daemon Administration dtcpstat fujil telnet Node Id Local Address Foreign Address Gateways fujil 1 www mycompany com telnet clientl eng pyra 1141 fujil Domain names are truncated in the output 6 3 4 Showing the gateway node The dtcpstat g command displays the gateway nodes for all the configured VIPs in the system A VIP address can be specified after the g option to show the gateway node only for that VIP address Some examples of the dtcpstat g usage are as follows dtcpstat g Vip Gateway Name Gateway Id www mycompany com fuji2 00 ldap mycompany com fugis 01 dtcp
77. luster The right panel shows a summary table of all of the services as configured on the nodes with their status and statistics see Figure 59 ES Cluster Admin olx File Tools Help 3 FUI EH Nodes 2d Int A Services Service Summary Table Chart A Service Node Name State Con Count Suspend 4 www httpitep fuji3 AVAILABLE 0 namesudp fuji3 AVAILABLE 0 name udp fuji2 AVAILABLE 0 ava Applet Window Figure 59 Services window aes U42120 J Z100 3 76 97 Administering with Cluster Admin Administration Click on a service in the left panel to see its status in the right panel The right panel shows the following service details e Service Node Name State state of the service Available Suspended or Unknown Con count connection count Suspend number of suspended states for each service ES Cluster Admin File Tools Help A Fus EH Nodes x Interfaces Q Services A Idapitep Service Name Ports namefudp Service View Table Chart A name udp Serice Node Name State Con Count Suspend A www httpitep nameludp fuji3 AVAILABLE 0 o nameludp fuji2 AVAILABLE 0 0 ava Applet Window Figure 60 Service window showing details 98 U42120 J Z100 3 76 Administration Administering with Cluster Admin
78. m load is chosen for placing a connection The syntax is as follows SYSLOAD ServiceNodeList 22 U42120 J Z100 3 76 Configuration Configuration file e Round robin All nodes are used in a forced sequence The syntax is as follows ROUNDROBIN ServiceNodeList e Spill over the service node is chosen from one of two node lists depending on a threshold value load The node chosen is the one from ServiceNodeList_1 with the lowest load If this load is higher than the defined threshold value the node with the lowest load from the second group is chosen ServiceNodeList_z The syntax is as follows SPILLOVER ServiceNodeList_1 AT load TO ServiceNodeList_z SIS uses a sophisticated algorithm for calculating system load which returns a numeric value between 0 and 1 The value is calculated from the available hardware and various load parameters and depends on the current configuration and system load Approximate values derived from internal tests and calculations are as follows 0 0 to 0 5 is a system that has a low load almost idle 0 5 to 0 7 is a system that has a moderate load busy 0 7 and above is a system that has a high load saturated Choose a number for SPILLOVER that will help to avoid saturation e Weighted connection count The node with the lowest number of open connections is used The syntax is as follows CONCOUNT ServiceNodeListElement ServiceNodeListElement ServiceNodeListElement is
79. nation with other options Caution Do not use the d option unless advised to do so by support personnel When used in combination with other options this command displays no output quiet Tests config_file for syntax errors and displays configuration information Displays the version number of the dtcpadmin command Displays usage help 120 U42120 J Z100 3 76 Administration Displaying the status of SIS dtcpadmin k nodel node2 Expels the specified satellite node or nodes dtcpadmin S nodel node2 Readmits previously expelled satellite node or nodes dtcpadmin W v Changes the weights of nodes if the scheduling lt vip_ address gt p lt port gt algorithm uses the weighted connection count nodel weight node2 weight2 algorithm for the vip_address The node is specified in the same way as in the NODES section of the configuration If a node does not exist in the configuration it will be ignored and if it is not present in the list their weights will be unchanged 6 3 Displaying the status of SIS Use the dtcpstat to display the status of SIS The following list shows the usage for the dtcpstat command and its options dtcpstat h Shows a brief help message dtcpstat N Shows the status of each of the SIS nodes dtcpstat 1 Shows the status of all the configured services dtcpstat g vip_address Shows the gateway node associated with the VIP address vip_address f no
80. node list this number may be recalculated to reflect certain preferences U42120 J Z100 3 76 13 PROXY Introduction 2 6 PROXY PROXY addresses are public virtual addresses to a single node Since PROXY addresses have failover capabilities they also provide high availability The possible uses are as follows e Co hosting multiple addresses to one node e Assigning external connectivity to nodes that do not have connections to the Internet e Allocating backup nodes to a node 2 7 PRIVATE PRIVATE addresses provide virtual IP addresses to communicate by means of the CF cluster interconnect By using the scaling and failover capabilities of the cluster interconnect PRIVATE provides High Availability to internode communi cation These addresses cannot be routed to or from external networks 2 8 Service node failover A VIP service defines a list of primary service nodes and a PROXY is defined to connect to a single primary service node either of which will receive the client requests The FAILOVER construct provides a method to associate a list of secondary service nodes to one or more primary service nodes The first available secondary service node will receive the client request if the scheduled primary node cannot provide the service for one of the following reasons e The node has shutdown e The node has ceased to be a cluster member CF status not UP core nodes only e SIS has been deactivated on the no
81. nrpc tcp fuji2 Available 1 sunrpc udp Fuji Available 0 sunrpc udp fuji2 Available 0 login tcp fuji Available 1 login tcp fuji2 Available 0 dtcpstat 1 fujil Service Protocol Node Service State Con count telnet tcp fujil Available 3 sunrpc tcp fujil Available 1 sunrpc udp fujil Available 0 login tcp fujil Available pl dtcpstat 1 telnet Service Protocol Node Service State Con count telnet tcp fujil Available 1 telnet tcp fuji2 Available 1 6 3 3 Status of SIS connections OS SS SO O SS O Suspends 0 0 0 0 Suspends 0 0 Entering the dtcpstat command with no options displays information about all SIS connections in the cluster and results in output similar to the following dtcpstat Node Id Local Address Foreign Address fujil 0 www mycompany com login clientl eng pyra 965 Gateways fujil 124 U42120 J Z100 3 76 Administration Displaying the status of SIS fujil 1 www mycompany com telnet clientl eng pyra 1141 fujil fuji2 0 www mycompany com telnet client2 eng pyra 54108 fujil fuji2 1 www mycompany com login client2 eng pyra 1015 fujil You can specify the following e One node or one service e Both anode and a service The service can be either a port number or aname The output displays connec tions of the specified node or service The n option prints IP addresses in dot decimal notation Entering the dtcpstat command with options results in output similar to the fol
82. on Satellite nodes NIC failover Administration Syntax rules Debugging and troubleshooting Manual pages Index Contents OnKRwWD 2d dl dl dl dl dd dl dodo odo od Da dl dl ld Preface ei wes Ae ed a e a a a ra da 1 Contents of this manual 1 Related documentation 0000004 2 Suggested documentation o 3 Conventions 24 e agti e o ed oe sas we we ede 4 Notation sos ma at Gaede es a GH a Gk ae A aa de a i n 4 Prompts s o se G94 ae wv 5 6 ae oe ea Doh Ge ee aa 4 Manual page sectionnumbers 245 4 The keyboard ss ch eo e ee 8 ade he e e 4 TYPOTACOS a koa ge eR ee ce a ee dae a 5 EXAMPIE tl se i da chet ds Sheet ea e Os ates ey tas ae Y 5 Example 2 2408 2 She daa ee dee dow ed Gob doe hoes 5 Command synttaxX coca e 6 Shack Ke EA eR See eo oe 6 IMportat csi ta Boe ee A SE ee a 6 Introduction a a 7 SIS OVEIVIEW cocaina 7 Service names 8 Gateway nodes 2 carr o oe aes 8 Primary database node 9 Backup database node 9 satellite modes tne stas 2h toos a dde Ae we de das ta 9 Benefis s r son iva id a aaa Le a A ee hy la E 10 SIS architecture 12 A a a be rod vee tn ee as es ee GG wee a ee Os os 13 PROXY gt due ee es te O ds a eo a e ee 14 PRIVATE amp acota ds Go ae foal e oe i os te oe 14 Service node
83. on the same subnet as the failed NIC This is done only for data packets that have virtual addresses managed by SIS as the source IP address Native connections through that NIC will be dropped unless the SIS cluster was configured for NIC redundancy 5 2 3 Restore actions If the failed NIC on fuji 2 is restored then the SIS NIC failover module will take the following actions as in the following example Example 1 The gateway node does not revert back to the original gateway node fuji2 2 Outgoing packets of fuji2 are no longer rerouted 3 fujil will again only monitor fuji2 while fuji2 resumes monitoring Fuji3 5 2 4 Starting and restarting The NIC failover monitoring is done by a userland daemon This daemon is started when the package is installed It is also started automatically by the dtcp rc script when the system is rebooted You can use the command opt SMAW bin dtcpnfd to start the daemon manually 5 2 5 Trusted host configuration If anode cannot communicate with the next node and if there are no other cluster nodes in the same subnet the NIC failover module cannot determine if its own connection to the subnet has failed or if the remote NIC has failed To resolve this situation each node should know at least one trusted host for each monitored subnet The default gateway for each node if present is automatically considered to be a trusted host U42120 J Z100 3 76 85 SIS NIC failover module NIC fail
84. opriate VIP Addresses entry changing the form attributes and pressing Modify Delete a VIP Address by selecting the appropriate VIP Addresses entry and pressing Remove Configure a VIPs services by selecting the appropriate VIP Addresses entry and pressing Next FUJI SIS Node YIP VIP Addresses mycompany com HostiP Netmask 255 255 255 0 v Pref GW v Add Modify i Remove Java Applet Window Figure 27 Fully configured VIP window U42120 J Z100 3 76 55 Creating a new configuration file Configuration After completing the configuration of all VIPs our sample configuration file now has the following contents NODES fuji2 fuji3 berlin munich sidney toronto GATEWAYS fuji2 fuji3 VIP www mycompany com 255 255 255 0 389 tcp gt Idap tcp SERVICE 389 tcp ROUNDROBIN fuji3 FAILOVER berlin 42 udp gt name udp SERVICE 42 udp CLBASED fuji2 FAILOVER fuji3 SERVICE 80 tcp CLBASED fuji2 FAILOVER fuji3 FTP Notes Due to the special limitations when configuring ftp for a VIP refer to Section VIP the GUI recognizes FTP configurations and enforces the following special rules e CLBASED and KEEPLOCAL scheduling are allowed without restrictions e For all other scheduling algorithms the GUI inserts DCL even if you do not check the DCL button e When you try to configure f
85. orks and how to use it 5 1 Introduction For the SIS cluster the NIC card on the gateway node is extremely important If the gateway node cannot communicate with other systems then the Virtual Interface Provider VIP interface which depends on this gateway node will be non functional Additionally if a NIC fails on a service node network services handled on that service node will not respond to client requests These conditions result in a single point of failure for the SIS cluster at least to a VIP To prevent this SIS needs to use other mechanisms to recognize NIC failure and act on it Standard system interfaces do not provide any method for detecting a NIC failure The SIS NIC failover module recognizes NIC card failures and keeps the SIS cluster functional The following solutions to this problem are possible e SIS NIC failover module The SIS gateway node will switchover to another node This is tightly integrated with SIS and does not require a second or a passive NIC in each of the nodes e Synfinity Link GLS This provides NIC redundancy by having a passive NIC on the same node e Solaris IP multipathing or Linux NIC bonding Both these methods can work with an active active model or an active passive model on the same node SIS has been tested and works in conjunction with all the solutions mentioned above The SIS NIC Card failover module solution is optimal because it does not require a second NIC and is tightly
86. ou can select nodes as satellite nodes that are not currently known as core nodes In regular configuration files the NODES line is evaluated while in a file with the sat extension all uncommented lines are expected to contain node names that are separated by commas or by white space Click on Browse and the file browser appears see Figure 14 Egsatellite Node Definition Lx Satellite node Load Satellite Nodes x File List etc optiSMAW SMAWatcp Node List FUJI 4 EB fujia EB tuji2 Add Remove Add 0k Cancel Java Applet Window Figure 14 Browsing for satellite nodes The window is divided as follows e Left panel Shows the satellite nodes after you have added them to the configuration e Middle panel Contains the cluster node tree If you click on the cluster name the window shows all the nodes found in the cluster Expand the tree further to reveal the SIS configuration files for each node If you click on a node or a file the available satellite nodes are listed in the right panel 40 U42120 J Z100 3 76 Configuration Creating a new configuration file e Right panel Lists the available satellite nodes By default all possible satellite nodes are selected The selection check box is disabled if a node is already a CF or SIS node or if it is already in the node list Select the satellite nodes that you want for your configu
87. ou cannot specify them together The following are examples of valid and invalid commands e Valid command dtcpstat 1 telnet 122 U42120 J Z100 3 76 Administration Displaying the status of SIS e Invalid command dtcpstat 1 telnet rlogin i Either a port number or a name can be entered for service The output contains the following information e Service e Name of the node on which the service runs e State of the service Available Suspended or Unknown e Connection count Con count e Number of Suspended states for each service A service is put into the Suspended state if the maximum number of pending connections is reached see description of the backlog parameter in the 1isten 3N manual page Con count shows the number of currently established connections for the specified service Entering the dtcpstat 1 command with any of the options results in output similar to the following dtcpstat 1 Service Protocol Node Service State Con count Suspends telnet tcp fuji Available 3 0 telnet tcp fuji2 Available 1 0 sunrpc tcp Fuji Available 1 0 sunrpc tcp Fuji2 Available 1 0 sunrpc udp fuji Available 0 0 sunrpc udp Fuji2 Available 0 0 login tcp fuji Available 1 0 login tcp fuji2 Available 0 0 U42120 J Z100 3 76 123 Displaying the status of SIS Administration dtcpstat 1 q telnet tcp fuji Available 3 telnet tcp fuji2 Available i sunrpc tcp fuji Available su
88. over An optional list of trusted hosts can be provided in the etc opt SMAW SMAWdtcp dtcpnfd hosts file Each trusted host is listed on a separate line Valid entries are resolvable host names or IP addresses in dotted decimal format Text following a hash is ignored up to the end of the line The following is an example file Example configuration file Specify one host address per line 172 25 218 1 router router mycompany com It is recommended to use hosts that are known to be available at all times for example company DNS servers routers and so forth The administrator is responsible to provide adequate routing to the trusted nodes for each cluster node The NIC failover cannot be verified by shutting down the interface using the ifconfig down command 86 U42120 J Z100 3 76 6 Administration This chapter describes the administration utilities included in SIS These utilities are commands for such SIS administration tasks as starting stopping reconfig uring and checking SIS and for displaying debug messages This chapter discusses the following e The Section Administering with Cluster Admin details how to use the PRIMECLUSTER graphical user interface GUI e The Section Administering with the CLI describes the dtcpadmin command e The Section SIS daemon describes the dtcpd command e The Section Displaying the status of SIS describes the dtcpstat command e The
89. ppropriate services from the Available list to the Selected list Click Next to continue iB rua y Define new Tcp service tcp udp E pa Hode Start 80 End Add E Ba Available Tcp services Selected services iso tsap 102 tcp kerberos 7 50 itcp kerberos adm 749 itcp zal kKlogin 43ytcp krb5_prop 7454yitcp kshell S44 itcp Idap 389 itcp Idaps 636 tcp link 87 itep listen 2766 itep lockd 4045 itcp e EN ecw mesa He Java Applet Window Figure 20 Define new service window Next select one or more of the available TCP or UDP services as follows U42120 J Z100 3 76 47 Creating a new configuration file Configuration 1 Mark a service from the Available services list 2 Click on the right arrow gt button to move the marked service to the Selected services window 3 Repeat the process for each service that you want to define Use the left arrow button to remove services from the Selected services list Click on the double right button to select all services in the Available services list To remove all the Selected services click on the double left arrow button When you have finished your selections you will see a window similar to Figure 21 EBsIS Wizard ioj xj Select the appropriate TCP UDP services in which to configure scheduling algorithms Add the appropriate services from the Available list to the Selected list Click Ne
90. ration and click on the Add button to add them to the configuration The nodes appear in the left panel Click on the Ok button to go to the next window U42120 J Z100 3 76 41 Creating a new configuration file Configuration The window for selecting nodes reappears see Figure 15 GASIS Wizard olx Add nodes to the SIS cluster by checking the Selection column nextto the appropriate node name Optionally you can configure satellite nodes by clicking Satellite node button FUJI Node List EY SIS Hode SIS Nodes Select all MEA QUAD Cancel Back Next Help Java Applet Window Figure 15 SIS Wizard node selection window Click on the Select all button to add the nodes Click on the Next button to create the VIP PROXY and PRIVATE interface definitions 42 U42120 J Z100 3 76 Configuration Creating a new configuration file 3 4 3 Defining VIP PROXY and PRIVATE addresses The base window for defining virtual SIS addresses is shown in Figure 16 There is one of three paths you may traverse atthis point You may configure VIP Addresses Proxy Addresses or Private Addresses Select the appropriate radio button and click Next to continue El SIS Node 8 Define VIP Addresses Define Proxy Addresses Define Private Addresses e Com 02 ren Java Apple
91. ration wizard as explained in the Section Creating a new configuration file For pausing SIS on every node in the cluster select the Pause option from the Tools menu This brings up a confirmation dialog box Click Yes to pause see Figure 74 After SIS has been paused the Pause option becomes inactive and the Resume option becomes active U42120 J Z100 3 76 107 Administering with Cluster Admin Administration ES Cluster Admin ixi 4006 Do you want pause SIS Yes No Java Applet Window Figure 74 Pausing SIS To resume SIS on every node in the cluster select the Resume option from the Tools menu and click Yes on the confirmation dialog box see Figure 75 This will inactivate the Resume option and activate the Pause option again ES cluster Admin es 4007 Do you want resume SIS Ye No Java Applet Window Figure 75 Resuming SIS Starting stopping operations on a single node For operations on individual nodes select the node from the SIS configuration tree on the left panel and click the right mouse button This brings up a small menu list with the Start and Stop options see Figure 76 Select one of the active menu items to bring up a confirmation dialog box see Figure 77 the same as clusterwide operation Click OK to perform the operation Errors are reported back SIS indicates success by changing the status of the node in the right panel 108 U42120 J Z100 3 76 Admini
92. rections Submitted by Comments on PRIMECLUSTER Scalable Internet Services SIS U42120 J Z100 3 76
93. rwide Startup File List Database Node Dir fetclopiSMAYWSMAWYdtcp fuji3 sgj2 Backup Database Nodes EY sis Nodes Selection E sis fsc E sis 1 E sis la E sis 1test E sis_cluster sis_config_2 Si sis_dtcp 3 sis_fsc 3 sis_fujis A v20test fuji2 wi Check Ok Cancel Help Java Applet Window Figure 71 Selecting file and database node 106 U42120 J Z100 3 76 Administration Administering with Cluster Admin The syntax check either returns with errors see Figure 72 or it is successful see Figure 73 If the syntax check is successful then click on the OK button and SIS will start with the selected file If the check was erroneous select another file and repeat the check Cluster Admin Nx 4022 There are errors in this configuration Ox Java Applet Window Figure 72 Syntax check error window Cluster Admin E xi 4023 Error check passed Ox Java Applet Window Figure 73 Syntax check OK window To restore the configuration that was running before you stopped SIS select the Restore the last session radio button on the SIS Startup Menu window and click OK The GUI will automatically start SIS on all of the nodes with the previous config uration To start the wizard and create a new configuration file select the Start Wizard radio button and click OK This will start the SIS configu
94. shooting 133 GICpdbg fs eae ee a ee A a a 133 Troubleshooting ios obs ews be eee Seow a k 135 Manualpages 2 0005240 137 be er ay E Pgs a ee Be Gr ees ee Sterne ange ar 139 U42120 J Z100 3 76 Contents U42120 J Z100 3 76 1 Preface This guide provides instructions on how to configure and administer the Fujitsu Siemens Computers Inc SIS Scalable Internet Services product The primary audience for this guide is the system administrator 1 1 Contents of this manual This manual is organized as follows e The Chapter Introduction provides a brief overview of SIS Scalable Internet Services including terms concepts functions and components e The Chapter Configuration describes SIS configuration files and how to configure them In addition some example configurations are supplied e The Chapter Satellite nodes details the requirements for setting up satellite node configurations e The Chapter NIC failover describes SIS Network Interface Card NIC failover including how SIS recognizes a failure how it responds and what you need to do to configure the SIS NIC failover module e The Chapter Administration describes how to administer SIS with Cluster Admin and details the SIS utilities e The Chapter Syntax rules lists the syntax rules for a SIS configuration file e The Chapter Debugging and troubleshooting details the dtcpdb
95. stat g www mycompany com Vip Gateway Name Gateway Id www mycompany com fuji2 00 dtcpstat gn www mycompany com Vip Gateway Name Gateway Id 192 168 17 1 fuji2 00 6 4 SIS daemon The dtcpd command starts the SIS daemon The daemon is responsible for receiving the VIP definitions from the configuration file and sending them to the TCP stack on the service nodes The command has the following syntax dtcpd d debug file The d option writes debug messages to the designated debug file instead of the system console 126 U42120 J Z100 3 76 Administration Debug messages 6 5 Debug messages The dtcpdbg program displays debugging information for SIS Caution Do not use dtcpdbg unless advised to do so by support personnel It slows down the system significantly See the Chapter Debugging and troubleshooting for more information on dtcpdbg U42120 J Z100 3 76 127 Debug messages Administration 128 U42120 J 2100 3 76 7 Syntax rules This chapter consists of the Backus Naur Form syntax rules to which the config uration file must conform Config NodeSection NodeDef J AssignmentSection Assignment CCNodeList ServNodeList UdpServNodeLi st PrivateAlist ProxyAlist Alist Bnum Blist List InterfaceSection InterfaceDef VipDef VipStart VipList FourBytes NodeSecton GatewaySection
96. stration Administering with Cluster Admin ES Cluster Admin File Tools Help g Fus iol x EH Nodes Node Name i3 ls Node Type Database Gateway Service E Node Status UP El sidney EH toronto A Node Name Service State Con Count Suspend 2 interfaces i fajia www htipitcp AVAILABLE lo 10 A Services 4 fujia namesudp AVAILABLE 0 0 ELO Java Applet Window Figure 76 Start and stop on an individual node Cluster Admin Ne 1015 Stop SIS on fuji3 Java Applet Window Figure 77 Stopping individual node U42120 J Z100 3 76 109 Administering with Cluster Admin Administration Switch gateway node Choose the Switch Gateway Node option from the Tools menu to change a gateway node from one node to another Selecting this option brings up the Select Gateway Node window see Figure 78 Switch Gateway Node VIP dtcp8 usafsc net v From To fuji2 fuji3 Ok Apply Cancel Help Java Applet Window Figure 78 Select Gateway Node window Select the gateway node to be switched to another node from the V P pull down list Select the node that you want to switch Click on Apply 110 U42120 J Z100 3 76 Administration Administering with Cluster Admin Add backup database node Choose the Add Backup Dat
97. t Window Figure 16 Define VIP PRIVATE and PROXY addresses The following options are available e Define VIP Addresses e Define Proxy Addresses e Define Private Addresses U42120 J Z100 3 76 43 Creating a new configuration file Configuration 3 4 3 1 VIPs Creating a VIP includes the following procedures e Defining one or more VIP addresses Defining services for each VIP Assigning a schedule to each service Checking the result Saving and activating the configuration Defining the VIP address To define a VIP select the Define VIP Addresses radio button and click on the Next button see Figure 16 The window for creating new VIP addresses appears see Figure 17 Basis Wizard of xj Create a new VIP Address by completing the form and pressing Add Modify an existing VIP Address by selecting the appropriate VIP Addresses entry changing the form attributes and pressing Modify Delete a VIP Address by selecting the appropriate VIP Addresses entry and pressing Remove Configure a VIPs services by selecting the appropriate VIP Addresses entry and pressing Next VIP Addresses EN FUJI EH SIS Hode HostAP www mycompany com Netmask 255 255 255 0 m Pref GW v Add Modify Remove Caa pa mao Java Applet Window Figure 17 Define VIP addresses window 44 U42120 J Z100 3 76 Configuration Creating a new config
98. ter fuji_cluster new fuji_cluster1 fujis fujis_sis newest Selected File Edit Cancel Java Applet Window Figure 82 Edit Wizard window View 114 U42120 J Z100 3 76 Administration Administering with Cluster Admin 6 1 2 3 Help The Help menu option has help for all of the supported products in the GUI see Figure 83 The menu items are as follows e Content e About a o a Interfa AJ Services IP Address Port Mask Schedule Scheduled Nodes mycompany com Vip 208 239 76 34 255 255 255 0 Idapitep Service 389 ROUNDROBIN fuji3 Al namejudp Service 42 CLBASED Bfuji2 Al www httpitcp Service 80 CLBASED Bfuji2 Private 192 168 1 1 255 255 255 0 Private 192 168 1 2 255 255 255 0 199 181 135 201 Proxy 199 181 135 201 255 255 255 0 Figure 83 Help menu options egend Wup MDown F Primary DB Backup DB lava Applet Window U42120 J Z100 3 76 AS Administering with Cluster Admin Administration Selecting Content opens up another window see Figure 84 This window lists all of the help topics per the products supported by the GUI and includes additional details of important procedures and menu items in the GUI 3 PRIMECLUSTER ADMIN Microsoft Internet Explorer File Edit View Favorites Tools Help El
99. the appropriate TCP UDP services in which to configure scheduling algorithms Add the appropriate services from the Available list to the Selected list Click Next to continue 7 Define new Tcp service tcp udp FUJI El SIS Node vIP Available Tcp services Selected services kerberos adm 749 tcp klogin 54 3 tcp krb5_prop 754 tcp kshell 544jtcp ajaj listen 2766ytcp lockd 4045 itcp Java Applet Window Figure 19 Select services window 46 U42120 J Z100 3 76 Configuration Creating a new configuration file A list of available TCP services from etc services is already in the Available TCP services list see Figure 19 To see the UDP services select the udp radio button You can define additional services as follows 1 Click the Define new TCP UDP service check box Additional fields appear see Figure 20 2 Enter the starting and ending port numbers 3 Click the Add button The newly defined service is added to the Available services list If you define a new TCP or UDP service but some of the new port i numbers are already present in the Available TCP services or Available UDP services lists Cluster Admin will resolve the collision when the configuration file is generated EgsIS Wizard Bei Select the appropriate TCP UDP services in which to configure scheduling algorithms Add the a
100. thms is defined as one of the following e node_l node_n e node_h node_r FAILOVER node_s node_z Scheduling for UDP based services To load balance UDP services SIS supports the same scheduling algorithms as for TCP Unlike TCP UDP does not have connection semantics built into the protocol Instead the SIS UDP algorithms provide a configurable timeout within which incoming requests from the same client and the same client port number will be assigned to the same server establishing the concept of a pseudo connection If no further request is received within the timeout the pseudo connection is closed Any requests for the same service that arrive after this interval are treated as a new pseudo connection and are scheduled accordingly Refer to the Chapter Manual pages and to the Section Administering with the CLI for how to change the timeout value using the dtcpadmin 1M command The default value is 5 seconds 24 U42120 J Z100 3 76 Configuration Configuration file The following are examples of UDP based scheduling SERVICE 2049 udp SYSLOAD fujil fuji4 SERVICE 118 udp SYSLOAD fujil fuji4 FAILOVER fuji2 fuji3 Failover The FATLOVER construct is used in place of a simple list of nodes when additional fault tolerance is required in SERVICE or PROXY definitions The syntax of FAILOVER for VIP is as follows node_a node_m FAILOVER node_n node_z If the service SIS or the node itself
101. tp together with other services or ports you get a pop up warning and the configuration will not be possible until you deselect the other services from this window e The configuration of port 20 will not be discovered until the syntax check is selected during the save or activate the configuration process 56 U42120 J Z100 3 76 Configuration Creating a new configuration file PRIVATE and PROXY providers Create a PRIVATE or PROXY provider as follows 1 Enter the Host IP address 2 Select or edit the appropriate netmask in the Netmask field 3 For PROXY addresses you can select the following see Figure 29 Preferred gateway by selecting a node from the Pref GW pull down list Failover node from the list of available nodes 4 Click on the Add button Select the Define Private Addresses option and click on Next to bring up the define PRIVATE addresses window see Figure 28 GASIS Wizard 154 xj Create a new Private Address by completing the form and pressing Add Modify an existing Private Address by selecting the appropriate Private Addresses entry changing the form attributes and pressing Modif Delete a Private Address by selecting the appropriate Private Addresses entry and pressing Remove Private Addresses a Fus EH SIS Hode 192 168 1 1 E G vip 192 168 1 2 E 29 Private HostiP Netmask 255 255 255 0 v Node fuji3 v Ad
102. uji2 IP weww mycompany com 255 25 SERVICE Idap 389 tcp ROUNDR SERVICE 80 tcp CLBASED fuji2 Figure 10 Viewing the configuration as a text file 36 U42120 J Z100 3 76 Configuration Creating a new configuration file 3 4 1 Adding nodes The window for adding nodes to the SIS cluster follows the welcome window see Figure 11 This window is divided as follows e The first column CF Nodes shows the available CF nodes e The second column Selection is for selecting which nodes you want to be members of the SIS cluster e Two buttons on the right side of the window allow you to select or deselect all nodes in the first column as SIS nodes e The Satellite node button opens an additional window for selecting satellite nodes GASIS Wizard 5 xj Add nodes to the SIS cluster by checking the Selection column next to the appropriate node name Optionally you can configure satellite nodes by clicking Satellite node button FUJI Node List EH SIS Node Nodes Selection SIS Nodes r 5 Hru vi Selecta Java Applet Window Figure 11 Selecting nodes U42120 J Z100 3 76 37 Creating a new configuration file Configuration For example if you select the nodes fuji2 and fuji3 to be in the SIS cluster the configuration will have the following entries NODES fuji2 fuji3 3 4 2 Configuring satellite nodes Click on the Sate
103. uling algorithm window You can add more services here if desired Continue configuring the services until they are all done Once you are done configuring services click Next to go to the following window U42120 J Z100 3 76 51 Creating a new configuration file Configuration a SIS Wizard name 42 udp netbios dgm 138Yudp netbios ns 137 udp netbios ssn 139 udp Figure 24 Select services configured 52 U42120 J Z100 3 76 Configuration Creating a new configuration file In the complete configuration window you can choose to continue defining SIS addresses orto complete the configuration see Figure 25 The left hand panel shows the current configuration file Click Next to add more interface definitions the file Refer to the Section Completing the configuration for information on saving the file Edsis Wizard iol xi You may 1 choose to edit more interfaces 2 save the current configuration w the error checking feature or 3 save the current configuration without doing the error check by selecting the appropriate radio button Click Next to continue GATEWAYS fuji3 fuji2 VIP www mycompany corm 25 i SERVICE Idap 389tcp ROUN SERVICE name 42 udp CLBA SERVICE 80 tep CLBASED fi Add Edit Interface Save file with error check Save file without error check PROXY www abe com 255 255 PRIVATE 192 168 1 2 255 255 2 PRIVATE 192 168 1 1 255 255
104. uration file Define VIPs as follows 1 Enter the Host IP address as a resolvable host name or IP address see Figure 17 Select or edit the appropriate netmask in the Netmask field 2 3 Select a node name in the Pref GW field if desired 4 Click the Add button to add the VIP to the VIP addresses column 5 Repeat Steps 1 through 4 for each VIP The resulting window should look similar to Figure 18 Gasis Wizard Create a new VIP Address by completing the form and pressing Add Modify an existing VIP Address by selecting the appropriate VIP Addresses entry changing the form attributes and pressing Modify Delete a VIP Address by selecting the appropriate VIP Addresses entry and pressing Remove Configure a VIPs services by selecting the appropriate VIP Addresses entry and pressing Next VIP Addresses fssemesamesnes FUJI SIS Hode vIP HostiP www mycompany com Netimask 255 255 255 0 v Pret cw v Add Modify Remove Java Applet Window Figure 18 Define VIP Addresses window with VIP added U42120 J Z100 3 76 45 Creating a new configuration file Configuration Defining services for the VIP To add services to a VIP definition select the VIP from the VIP Addresses list and click on the Next button This takes you to the select services window see Figure 19 GASIS Wizard Of xj Select
105. wing effects e Primary and backup database nodes do not change e TCP connections survive e UDP pseudo connections are terminated Click on the Next button and the S S Wizard completed window appears see Figure 38 Click on Finish to exit from the wizard GASIS Wizard I5 x Below are the results of the save restart operation FUJI SIS Node YIP Proxy Private SIS is restarted The configuration file was saved to etc opt SMAVWS MAW dte fuji3 fuji2 Java Applet Window Figure 38 Restart from the SIS Wizard completed window U42120 J Z100 3 76 67 Creating a new configuration file Configuration If you select the Rebuild option you are given additional options as follows Ts 2 Select the primary database node from the Primary DB Node list Select backup database nodes from the Secondary DB Nodes list by clicking on their selection check boxes When you click on the Next button all SIS nodes are started with the configu ration specified If a SIS configuration is running on the cluster SIS will first be stopped on all active nodes and then restarted according to your configuration Egsis Wizard joj xj You may save the configuration by specifying the appropriate filename Additionally you may choose to update SIS using this configuration by clicking the Reconfigure radio button Click Next to continue the operation
106. xt to continue Er SIS Hode vIP v Define new Udp service Start En ada O tep udp Available Udp services name 42 udp netbios ns 137 iudp netbios ssn 1 39Wudp new rwho 550 udp netbios dgm 1 38 udp AHNE Selected services Idap 8gtcp abltcp name 42 udp Java Applet Window Back Next Figure 21 Selected services Once you have finished click on the Next button which takes you to the window to pick services see Figure 22 48 U42120 J Z100 3 76 Configuration Creating a new configuration file Select one or more TCP UDP services in which to define a scheduling algorithm Click Mext to continue FUJI Please select services eS Serice Name Selection Idap 3e9ytcp name 42 udp Moa i 80step 4 Det mal pack _ New Cheto Java Applet Window Figure 22 Pick services window The pick services window lists all the services you selected To define schedules to the services select them by clicking on the Selection check box If you want them to have the same scheduling algorithm and node lists you can select more than one service otherwise select them one at a time Click on the DCL check box if required and then click the Next button U42120 J Z100 3 76 49 Creating a new configuration file Configuration
107. y node which can take over the role of a service node if the service node goes down for any reason e Virtual Interface Provider VIP IP address or name provided by SIS to define a single network address for a SIS cluster e PROXY IP address or name assigned to a SIS node on the public network which make all services of that node highly available e PRIVATE IP address or name assigned to a SIS node to communicate privately and securely using the CF interconnect 3 2 Configuration file The SIS configuration file is used to configure the SIS cluster to provide the scalable and highly available network services of the PRIMECLUSTER suite The SIS configuration file should be created using the Cluster Admin GUI Since it is a text file it can also be created or edited by using a text editor however this is recommended only for experienced users The SIS configuration file is read once from the top down and requires a minimum of one interface definition The items contained within the configu ration file must be maintained in the following order e Variable assignments This is an optional section where variables can be assigned for later use e Nodes declaration This section lists all the nodes in the SIS cluster e Gateways declaration This section lists all the nodes in the SIS cluster that have an interface on the public network e Interface definitions This list defines VIP addresses PROXY addresses and PRIVATE

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