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DELL PowerVault MD3220i

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1. ets os F NOTE This procedure applies to out of band management only If you choose to set up in band management you must complete this step and then proceed to Step 8 Optional Set Up In Band Management on page 72 You can discover the storage array cither automatically or manually Select one and complete the following procedure Automatic Storage Array Discovery 1 Launch MD Storage Manager MDSM If this is the first storage array to be set up the Add New Storage Array window is displayed 2 Select Automatic and click OK It may take several minutes for the discovery process to complete Closing the discovery status window before the discovery process completes cancels the discovery process Appendix Manual Configuration ofiSCSI 55 After discovery is complete a confirmation screen is displayed 3 Click Close to close the screen Manual Storage Array Discovery 1 Launch MDSM If this is the first storage array to be set up the Add New Storage Array window is displayed Select Manual and click OK Select Out of band management and enter the host server name s or IP address es of the iSCSI storage array controller 4 Click Add Out of band management is now successfully configured After discovery is complete a confirmation screen is displayed 5 Click Close to close the screen Setting Up the Array 1 When discovery is complete the name of the first storage array found
2. The Uninstall Complete window is displayed 4 Follow the instructions on screen 5 Select Yes to restart the system and then click Done Use the following procedure to uninstall Modular Disk Storage software from Windows Server 2008 GUI versions 1 Double click Programs and Features from the Control Panel 2 Select MD Storage Software from the list of programs 3 Click Uninstall Change The Uninstall Complete window is displayed 4 Follow the instructions on screen 5 Select Yes to restart the system then click Done Use the following procedure to uninstall PowerVault Modular Disk Storage Software on Windows Server 2008 Core versions 1 Navigate to the Dell MD Storage Software Uninstall Dell Modular Disk 32xxi Storage Software directory Uninstalling PowerVault MD Storage Software 45 F NOTE By default MD Storage Manager is installed in the Program Files Dell MD Storage Software directory If another directory was used during installation navigate to that directory before beginning the uninstallation procedure 2 From the installation directory type the following command and press lt Enter gt Uninstall Modular Disk Storage 3 From the Uninstall window click Next and follow the instructions on the screen 4 Select Yes to restart the system then click Done Uninstalling MD Storage Software From Linux 1 By default PowerVault MD Storage Manager is installed in the opt dell mdstoragemanager directory If ano
3. None This is the default selection If None is the only selection the storage array allows an iSCSI initiator to log on without supplying any type of CHAP authentication None and CHAP The storage array allows an iSCSI initiator to log on with or without CHAP authentication CHAP If CHAP is selected and None is deselected the storage array requires CHAP authentication before allowing access Configuring Mutual CHAP Authentication on the Storage Array The initiator secret must be unique for each host server that connects to the storage array and must not be the same as the target CHAP secret Change the initiator authentication settings in the Change Target Authentication window Use these options to change the settings None Select None if you permit no initiator authentication If you select None any initiator can access this target Use this option only if you do not require secure data However you can select both None and CHAP at the same time CHAP Select CHAP if you want to enable an initiator that tries to access the target to authenticate using CHAP Define the CHAP secret only if you want to use mutual CHAP authentication If you select CHAP and if no CHAP target secret is defined an error message is displayed Click CHAP Secret to view the Enter CHAP Secret windows Use this window to define the CHAP secrets F NOTE To remove a CHAP secret you must delete the host initiator and re add it 64 Appendi
4. 69 Data Digest and Header Digest Optionally you can specify that a digest of data or header information be compiled during transmission to assist in troubleshooting CHAP logon information If CHAP authentication is required select this option and enter the Target secret Perform mutual authentication If mutual CHAP authentication is configured select this option F NOTE IPSec is not supported Click OK To support storage array controller failover the host server must be connected to at least one iSCSI port on each controller Repeat step 3 through step 8 for each iSCSI port on the storage array that you want to establish as failover targets The Target Portal address is different for each port you connected to F NOTE To enable the higher throughput of multipathing 1 0 the host server must connect to both iSCSI ports on each controller ideally from separate host side NICs Repeat step 3 through step 7 for each iSCSI port on each controller If using a duplex MD36x0i configuration then LUNs should also be balanced between the controllers The Status field on the Targets tab should now display as Connected Click OK to close the Microsoft iSCSI initiator F NOTE PowerVault MD36x0i supports only round robin load balancing policies If you are using Windows Server 2008 Core Version 70 Set the iSCSI initiator services to start automatically if not already set sc lt server name gt config msis
5. 63 If you are not configuring any type of CHAP skip these steps and go to Step 7 Connect to the Target Storage Array From the Host Server on page 69 F NOTE If you choose to configure mutual CHAP authentication configure target CHAP first In terms of iSCSI configuration the term target always refers to the storage array Configuring Target CHAP Authentication on the Storage Array 1 From MDSM click the iSCSI tab and then click Change Target Authentication Select one of the CHAP settings described in Table B 4 2 To configure a CHAP secret select CHAP and select CHAP Secret 3 Enter the Target CHAP Secret or Generate Random Secret Confirm it in Confirm Target CHAP Secret and click OK Appendix Manual Configuration of iSCSI 63 Although the storage array allows sizes from 12 to 57 characters many initiators only support CHAP secret sizes up to 16 characters 128 bit F NOTE A CHAP secret is not retrievable after it is entered Ensure that you record the secret in an accessible place If Generate Random Secret is used copy and paste the secret into a text file for future reference since the same CHAP secret is used to authenticate any new host servers you may add to the storage array If you forget this CHAP secret you must disconnect all existing hosts attached to the storage array and repeat the steps in this chapter to re add them 4 Click OK Table B 4 CHAP Setting Option Description
6. Challenge Handshake An optional security protocol used to control Authentication Protocol access to an iSCSI storage system by restricting use of the iSCSI data ports on both the host server and storage array For more information on the types of CHAP authentication supported see Understanding CHAP Authentication on page 62 Host or host server A server connected to the storage array using iSCSI ports Host server port SCSI port on the host server used to connect it to the storage array Post Installation Tasks 31 Table 4 1 Standard Terminology Used in iSCSI Configuration Term Definition iSCSI initiator The iSCSI specific software installed on the host server that controls communications between the host server and the storage array iSCSI host port The iSCSI port two per controller on the storage array iSNS Microsoft Internet Storage An automated discovery management and Naming Service configuration Storage Naming Service tool used by some iSCSI devices Management station The system from which you manage your host server storage array configuration Storage array The enclosure containing the storage data accessed by the host server Target An iSCSI port on the storage array that accepts and responds to requests from the iSCSI initiator installed on the host server ISCSI Configuration Worksheet The IPv4 Settings Worksheet on page 33 and IPv6 Settings Worksheet on page 34 helps you p
7. Expanding With New PowerVault MD1200 Series Expansion Enclosures Perform the following steps to attach new PowerVault MD1200 series expansion enclosures to a PowerVault MD3200 series storage array 24 1 Before adding the expansion enclosure s ensure that the storage array software is installed and is up to date For more information see the Support Matrix at dell com support manuals a Install the software and driver package included on the PowerVault MD series resource media For information about installing the software see Installing PowerVault MD Storage Software on page 27 b Set up the PowerVault MD1200 series expansion enclosure s For information about setting up the PowerVault MD1200 series expansion enclosure s see the Owner s Manual at dell com support manuals c Using PowerVault MDSM update the RAID controller module firmware and NVSRAM to the latest versions available on dell com support d Click Tools Upgrade RAID Controller Module Firmware from the Enterprise Management Window EMW Stop I O and turn off the system and attached units a Stop all I O to the storage array and turn off affected host systems attached to the storage array b Turn off the storage array c Turn off any expansion enclosure s in the affected system Cable the expansion enclosure s to the storage array Turn on attached units a Tum on the expansion enclosure s Wait for the enclosure status LED to light bl
8. Non Redundant Configurations 13 Single Controller Configurations 13 Dual Controller Configurations 16 Cabling PowerVault MD1200 Series Expansion Enclosures IA IA 22 Expanding With Previously Configured PowerVault MD1200 Series Expansion Enclos res gina AE 22 Expanding With New PowerVault MD1200 Series Expansion Enclosures 24 3 Installing PowerVault MD Storage SOMWANG 5 5 porta pese 27 Graphical Installation Recommended 28 Contents Console Installation 29 SilentInstallation 29 Upgrading PowerVault MD Storage Software 30 4 Post Installation Tasks 31 BeforeYouBegin 31 iSCSI Configuration Worksheet 32 IPv4 Settings Worksheet 33 IPv6 Settings Worksheet 34 Configuring iSCSI on Your Storage Array 35 Automatic Configuration Using the Modular Disk Configuration Utility 36 Post Connection Establishment Steps 39 Guidelines For Configuring Your Network For iSCSI 40 Microsoft Windows Host Setup 40 Using ADHCPserver 40 Using static IPaddressing 40 Using ADNSserver 41 Using A WINS Server 41 Linux HostSetup 42 Using DHGP 3 gt 25h a a ii 42 Using A Static IP Address 42 Contents 5 Uninstalling PowerVaul
9. VLAN support A VLAN is a network of different systems that behave as if they are connected to the same segments of a local area network LAN and are supported by the same switches and routers When configured as a VLAN a device can be moved to another location without being reconfigured To use VLAN on your storage array obtain the VLAN ID from your network administrator Ethernet priority This parameter is set to determine a network access priority TCP listening port The port number on the storage array that listens for iSCSI logins from host server iSCSI initiators F NOTE The TCP listening port for the iSNS server is the port number the storage array controller uses to connect to an iSNS server This allows the iSNS server to register the iSCSI target and portals of the storage array so that the host server initiators can identify them Jumbo frames Jumbo Ethernet frames are created when the maximum transmission units MTUs are larger than 1500 bytes per frame This setting is adjustable port by port 4 To enable ICMP PING responses for all ports select Enable ICMP PING responses 5 Click OK when all iSCSI storage array port configurations are complete Test the connection by performing a ping command on each iSCSI storage array port 58 Appendix Manual Configuration of iSCSI Step 3 Perform Target Discovery From the iSCSI Initiator This step identifies the iSCSI ports on the storage array to
10. accessibility redundancy and capacity You can set a specified RAID level for each disk group and virtual disk on your storage array For more information about using RAID and managing data in your storage solution see the Owner s Manual at dell com support manuals Introduction 9 10 Introduction Hardware Installation Before using this guide ensure that you review the instructions in the Getting Started Guide The Getting Started Guide that shipped with the storage array provides information to configure the initial setup of the system Planning section of the Owner s Manual The planning section provides information about important concepts you must know before setting up your storage solution See the Owner s Manual at dell com support manuals Planning the Storage Configuration Consider the following before installing your storage array Evaluate data storage needs and administrative requirements Calculate availability requirements Decide the frequency and level of backups such as weekly full backups with daily partial backups Consider storage array options such as password protection and e mail alert notifications for error conditions Design the configuration of virtual disks and disk groups according to a data organization plan For example use one virtual disk for inventory a second for financial and tax information and a third for customer information Decide whether to allow space for hot
11. after the next host server reboot This utility can also be launched manually The utility has a context sensitive online help to guide you through each step of the wizard 36 Post Installation Tasks The MDCU performs Storage array configuration Host configuration Storage Array Configuration Before a host iSCSI initiator and an iSCSI based storage array can communicate they must be configured with information such as which IP addresses and authentication method to use Since iSCSI initiators establish connections with an already configured storage array the first task is to configure your storage arrays to make them available for iSCSI initiators This utility requires network access to the management ports of the storage arrays you wish to configure You must have a properly functioning network infrastructure before attempting to configure your storage arrays If your storage arrays are already configured you can skip directly to the host configuration This configuration task generally involves the following steps 1 Discover available storage array s for configuration Select a storage array to configure Set a storage array name and password Configure the IP protocols and addresses for the management ports Configure the IP protocols and addresses for the iSCSI ports Specify the CHAP authentication method Apply the settings after reviewing a summary onrniow Aa WwW N Repeat the process starting from step 2
12. at dell com support manuals Management Station Requirements A management station uses MDSM to configure and manage storage arrays across the network A management station must meet the following minimum system requirements Intel Pentium or an equivalent processor 1333 MHz or faster with 512 MB RAM 1024 MB recommended 1GB disk space Introduction 7 Display resolution of 1024x768 with 16 million colors 1280x1024 32 bit recommended Microsoft Windows Red Hat Enterprise Linux or SUSE Linux Enterprise Server F NOTE Supported operating systems include both native and guest operating systems F NOTE Supported hypervisors include Microsoft Hyper V Citrix XenServer and VMware ESX and ESXi For information about the supported versions see the Support Matrix at dell com support manuals Administrator or equivalent permissions Introduction to Storage Arrays An enclosure containing physical disks accessed through RAID controller modules is called a storage array A storage array includes various hardware components such as physical disks RAID controller modules fans and power supplies gathered into enclosures One or more host servers attached to the storage array can access the data on the storage array You can also establish multiple physical paths between the host s and the storage array so that loss of any single path for example through failure of a host server port does not resul
13. on a Dell PowerEdge RAID Controller PERC H800 adapter Data from virtual disks created on a PERC H800 adapter cannot be directly migrated to a PowerVault MD3200 series storage array or to a PowerVault MD 1200 series expansion enclosure connected to a PowerVault MD3200 series storage array A CAUTION If a PowerVault MD1200 series enclosure that was previously attached to PERC H800 adapter is used as an expansion enclosure to a PowerVault MD3200 series storage array the physical disks of the expansion enclosure are reinitialized and data is lost You must backup all data on the expansion enclosure before attempting the expansion To attach previously configured PowerVault MD1200 series expansion enclosures to the PowerVault MD3200 series storage array 1 Back up all data on the expansion enclosure s 2 Upgrade the expansion enclosure firmware to the latest version available at dell com support while the enclosure is still attached to the PERC H800 controller Windows systems users can reference the DUPexe package and Linux kernel users can reference the DUPbin package 3 Ensure that the storage array software is installed and up to date before adding the expansion enclosure s For more information see the Support Matrix at dell com support manuals 22 Hardware Installation a Install the software and driver package included on the PowerVault MD series resource media For information about installing the software see Inst
14. page 45 and then follow the instructions in Installing PowerVault MD Storage Software on page 27 to install the new version 30 Installing PowerVault MD Storage Software Post Installation Tasks Before using the storage array for the first time complete the initial configuration tasks in the order shown These tasks are performed using the MD Storage Manager F NOTE If Dynamic Host Configuration Protocol DHCP is not used initial configuration using the management station must be performed on the same physical subnet as the storage array Additionally during initial configuration at least one network adapter must be configured on the same IP subnet as the storage array s default management port 192 168 128 101 or 192 168 128 102 After initial configuration the management ports are configured using MD Storage Manager and the management station s IP address can be changed back to the previous settings Before You Begin F NOTE Before you begin configuring iSCSI it is recommended that you fill out the IPv4 or IPv6 iSCSI configuration worksheet available in this document see IPv4 Settings Worksheet on page 33 and IPv6 Settings Worksheet on page 34 Gathering this type of information about your network before starting the configuration steps helps you to complete the process more efficiently iSCSI Configuration Terminology Table 4 1 Standard Terminology Used in iSCSI Configuration Term Definition CHAP
15. spares which automatically replace failed physical disks Hardware Installation 11 Connecting the Storage Array The storage array is connected to a host using two hot swappable RAID controller modules The RAID controller modules are identified as RAID controller module 0 and RAID controller module 1 For more information see the Getting Started Guide Each RAID controller module has four SAS In port connectors that provide SAS connections to the host or node Each RAID controller module also contains an Ethernet management port and a SAS Out port connector The Ethernet management port allows you to install a dedicated management station server or stand alone system The SAS Out port allows you to connect the storage array to optional expansion enclosures for additional storage capacity For more information see the Getting Started Guide Each Dell PowerVault MD3200 series storage array can be expanded to a maximum of 120 or 192 if enabled through the Premium Feature activation physical disks through a maximum of seven PowerVault MD1200 series expansion enclosures F NOTE When you connect a host server to a storage array SAS In port connector any Out port connector of the server s host bus adapter HBA can be used Cabling the Storage Array You can cable the storage array to host servers with Single path data configuration A single path configuration allows you to connect a maximum of eight hosts This is a no
16. storage array model s you are setting up to serve as data storage for this host server Choose whether to start the event monitor service automatically when the host server reboots or manually Installing PowerVault MD Storage Software F NOTE This option is applicable only to Windows client software installation 7 Confirm the installation location and choose Install 8 If prompted reboot the host server once the installation completes 9 Start MD Storage Manager and discover the array s 10 If applicable activate any premium features purchased with your storage array If you purchased premium features see the printed activation card shipped with your storage array F NOTE The MD Storage Manager installer automatically installs the required drivers firmware and operating system patches hotfixes to operate your storage array These drivers and firmware are also available at dell com support See the Support Matrix at dell com support manuals for any additional settings and or software required for your specific storage array Console Installation F NOTE Console installation only applies to Linux systems that are not running a graphical environment The autorun script in the root of the resource media detects when there is no graphical environment running and automatically starts the installer in a text based mode This mode provides the same options as graphical installation Silent Installation To run silent in
17. the host server Select the set of steps in one of the following sections Microsoft Windows or Linux that corresponds to your operating system If you are using Microsoft Windows Server 2003 or Windows Server 2008 GUI version 1 Click Start Programs Microsoft iSCSI Initiator or click Start All Programs Administrative Tools iSCSI Initiator Click the Discovery tab Under Target Portals click Add and enter the IP address or DNS name of the iSCSI port on the storage array If the iSCSI storage array uses a custom TCP port change the Port number The default is 3260 Click Advanced and set the following values on the General tab Local Adapter Must be set to Microsoft iSCSI Initiator Source IP The source IP address of the host you want to connect with Data Digest and Header Digest Optionally you can specify that a digest of data or header information be compiled during transmission to assist in troubleshooting CHAP logon information Leave this option unselected and do not enter CHAP information at this point unless you are adding the storage array to a Storage Area Network SAN that has target CHAP already configured F NOTE IPSec is not supported Click OK to exit the Advanced menu and click OK again to exit the Add Target Portals screen To exit the Discovery tab click OK If you plan to configure CHAP authentication do not perform discovery on more than one iSCSI port at this p
18. the operating system You can change the load balance policies from the default round robin with subset by using one of the following Device Manager options Disk Management options Changing the Load Balance Policy Using Windows Server 2008 Device Manager Options 1 Right click My Computer and select Manage to open the Computer Management window from the host desktop 2 Click Device Manager to show the list of devices attached to the host 3 Right click the multi path disk device for which you want to set load balance policies then select Properties 4 Select the load balance policy you want to set for this disk device from the MPIO tab 50 Appendix Load Balancing Changing the Load Balance Policy Using the Windows Server 2008 Disk Management Options 1 Right click My Computer from the host desktop and select Manage to open the Computer Management window 2 Click Disk Management to show the list of virtual disks attached to the host 3 Right click the virtual disk on which you want to set the load balance policy then click Properties 4 Select the load balance policy that you want to set for this virtual disk from the MPIO tab Setting Load Balance Policies in Linux Linux only supports round robin based load balancing For more information see Round Robin With Subset on page 49 Appendix Load Balancing 51 52 Appendix Load Balancing Appendix Manual Configuration of iSCSI The followin
19. to configure additional arrays Host Configuration Host Connectivity Configuration After you have completed configuring your iSCSI based storage arrays the next task is to run this utility on all hosts that need to access the storage arrays Depending on your network configuration your host may be the same machine you use to manage your storage arrays or it may be on a completely separate network The option to configure a host is disabled if the machine on which the utility is running does not have an iSCSI initiator or the required driver components installed When the option is disabled the utility also displays an Post Installation Tasks 37 informational message If you are running the utility on a host which is not connected to the iSCSI based storage array or which you do not wish to connect to the array the informational message can be ignored The task generally involves the following steps 1 2 3 4 5 6 Discover available storage array s for connection Select a storage array Specify the CHAP secret Select the iSCSI ports the host s initiator uses to log on Repeat the process starting from step 2 to connect to additional arrays Repeat these steps on each host that needs access to the storage array s Before Starting the Configuration Process Before you start configuring the storage array or host connectivity it is recommended that you fill out the iSCSI configuration worksheet to help you pla
20. 92 168 128 101 Subnet Mask 255 255 2554 0 Controller 1 IP 192 168 128 102 Subnet Mask 255259529930 F NOTE No default gateway is set F NOTE If DHCP is not used perform the initial configuration using the management station on the same physical subnet as the storage array Additionally during initial configuration configure at least one network adapter on the same IP subnet as the storage array s default management port 192 168 128 101 or 192 168 128 102 After initial configuration management ports are configured using MD Storage Manager you can change the management station s IP address back to its previous settings Default Management IPv6 Port Settings By default the storage array management ports are enabled for IPv6 stateless auto configuration The ports are automatically configured to respond to their link local address and to a routable address if a configured IPv6 router is present on the network To know the link local addresses of the management port see the MAC label for the management port on the controller For example 1 If the MAC Address is 00 08 74 AA BB CC the link local address starts with FE80 02 2 Add the second and third bytes 08 74 MAC address to the prefix FES0 0208 744 3 Add FF FE to obtain FE80 0200 08F F FE 54 Appendix Manual Configuration of iSCSI 4 Finally add the last three bytes of the MAC address FES80 0200 08FF FEAA BBCC
21. Dell PowerVault MD3200 and MD3220 Storage Arrays Deployment Guide Notes Cautions and Warnings F NOTE A NOTE indicates important information that helps you make better use of your computer N CAUTION A CAUTION indicates potential damage to hardware or loss of data if instructions are not followed A WARNING A WARNING indicates a potential for property damage personal injury or death 2013 Dell Inc Trademarks used in this text Dell the DELL logo PowerEdge PowerVault and OpenManage are trademarks of Dell Inc Intel is a registered trademarks of Intel Corporation in the U S and other countries Microsoft Windows Windows Server MS DOS and Internet Explorer are either trademarks or registered trademarks of Microsoft Corporation in the United States and or other countries Red Hat and Red Hat Enterprise Linux are registered trademarks of Red Hat Inc in the United States and other countries SUSE is a registered trademark of Novell Inc in the United States and other countries 2013 07 Rev A02 Contents 1 Introduction 7 System Requirements 7 Management Station Requirements 7 Introduction to Storage Arrays 8 2 Hardware Installation 11 Planning the Storage Configuration 11 Connecting the Storage Array 12 Cabling the Storage Array 12 Redundant and
22. Internet Protocol TCP IP and then click Properties 4 Select Advanced gt WINS tab and click Add 5 Inthe TCP IP WINS server window type the IP address of the WINS server and click Add 6 To enable use of the Lmhosts file to resolve remote NetBIOS names select Enable LMHOSTS lookup Post Installation Tasks 41 7 To specify the location of the file that you want to import into the Lmhosts file select Import LMHOSTS and then select the file in the Open dialog box 8 Enable or disable NetBIOS over TCP IP If using Microsoft Windows Server 2008 Core Version use the netsh interface command to configure the iSCSI ports on the host server Linux Host Setup To set up a Linux host network you must configure the IP address and netmask of each iSCSI port connected to the storage array The specific steps depend on whether you are configuring TCP IP using DHCP or configuring TCP IP using a static IP address F NOTE The server IP addresses must be configured for network communication to the same IP subnet as the storage array management and iSCSI ports Using DHCP If you are using DHCP root users only 1 Edit the etc sysconfig network file NETWORKING yes HOSTNAME mymachine mycompany com 2 Edit the configuration file for the connection you want to configure either etc sysconfig network scripts ifcfg ethX for Red Hat Enterprise Linux or etc sysconfig network ifcfg eth id XX XX XX XX XX for SUSE Enterpr
23. a connection is allowed CHAP is an optional feature and is not required to use iSCSI However if you do not configure CHAP authentication any host server connected to the same IP network as the storage array can read from and write to the storage array F NOTE When using CHAP authentication you should configure it on both the storage array using MDSM and the host server using the iSCSI initiator before preparing virtual disks to receive data If you prepare disks to receive data before you configure CHAP authentication you lose visibility to the disks once CHAP is configured 62 Appendix Manual Configuration of iSCSI CHAP Definitions To summarize the differences between target CHAP and mutual CHAP authentication see Table B 3 Table B 3 CHAP Types Defined CHAP Type Description Target CHAP Sets up accounts that iSCSI initiators use to connect to the target storage array The target storage array then authenticates the iSCSI initiator Mutual CHAP Applied in addition to target CHAP mutual CHAP sets up an account that a target storage array uses to connect to an iSCSI initiator The iSCSI initiator then authenticates the target Step 5 Configure CHAP Authentication on the Storage Array Optional If you are configuring CHAP authentication of any kind either target only or target and mutual you must complete this step and Step 5 Configure CHAP Authentication on the Storage Array Optional on page
24. alling PowerVault MD Storage Software on page 27 b Update the storage array RAID controller module firmware and NVSRAM to the latest versions available at dell com support using PowerVault MDSM c Click Tools Upgrade RAID Controller Module Firmware in the Enterprise Management Window EMW 4 Stop all I O and turn off the system and attached units a Stop all I O to the array and turn off the host systems attached to the storage array b Tum off the storage array c Tum off the expansion enclosure s in the affected system Cable the expansion enclosure s to the storage array Turn on attached units a Tum on the expansion enclosure s Wait for the enclosure status LED to light blue b Turn on the storage array and wait for the status LED to indicate that the unit is ready Ifthe status LEDs are solid amber the storage array is still coming online Ifthe status LEDs are blinking amber there is an error that can be viewed using the PowerVault MDSM Ifthe status LEDs are solid blue the storage array is ready c When the storage array is online and ready turn on any attached host systems 7 After the PowerVault MD1200 series expansion enclosure is configured as an expansion enclosure of the storage array restore the data that was backed up in step 1 After the PowerVault MD1200 series expansion enclosures are online they can be accessed as a part of the storage array Hardware Installation 23
25. csi start auto 2 Start the iSCSI service if necessary sc start msiscsi 3 Log on to the target iscsicli PersistentLoginTarget lt Target Name gt lt Report To PNP gt lt Target Portal Address gt lt TCP Port Number Of Target Portal gt lt Login Flags gt lt Username gt lt Password gt lt Authtype gt lt Mapping Count gt Appendix Manual Configuration of iSCSI where lt Target Name gt is the target name as displayed in the target list Use the iscsicli List Targets command to display the target list lt Report_ To PNP gt is T which exposes the LUN to the operating system as a storage device lt Target Portal Address gt is the IP address of the iSCSI port on the controller being logged in to lt TCP_Port_Number_Of_Target_Portal gt is 3260 lt Login_Flags gt is 0x2 to enable multipathing for the target on the initiator This value allows more than one session to be logged in toa target at one time lt Username gt is the initiator name lt Password gt is the target CHAP secret lt Authtype gt is either 0 for no authentication for Target CHAP or 2 for Mutual CHAP F NOTE lt Username gt lt Password gt and lt Authtype gt are optional parameters They can be replaced with an asterisk if CHAP is not used lt Mapping Count gt is 0 indicating that no mappings are specified and no further parameters are required An ast
26. erify that the following time out value is set to 30 node session timeo replacement timeout 30 d Save and close the etc iscsi iscsid conf file 3 From the console restart the iSCSI service with the following command service iscsi start 4 Verify that the iSCSI service is running during boot using the following command from the console chkconfig iscsi on 60 Appendix Manual Configuration of iSCSI 5 To display the available iSCSI targets at the specified IP address use the following command iscsiadm m discovery t st p lt IP_address of iSCSI port gt 6 After target discovery use the following command to manually log in iscsiadm m node 1 This login is performed automatically at startup if automatic startup is enabled 1 Manually log out of the session using the following command iscsiadm m node T lt initiator username gt p lt target ip gt u Step 4 Configure Host Access This step specifies which host servers access virtual disks on the storage array You should perform this step before mapping virtual disks to host servers or any time you connect new host servers to the storage array Launch MDSM Navigate to the AMW and click Manually define hosts At Enter host name enter the host server for virtual disk mapping This can be an informal name not necessarily a name used to identify the host server to the network Select a method for adding the host port identifier Select the host
27. erisk represents the default value of a parameter For example your log on command might look like this iscsicli PersistentLoginTarget iqn 1984 05 com dell powervault 6001372000 fe3332xx0000046 712ed 2 3260 T 192 168 130 101 0x2 x x 0 To view active sessions to the target run the following command iscsicli SessionList To support storage array controller failover the host server must be connected to at least one iSCSI port on each controller Repeat step 3 for each iSCSI port on the storage array that you want to establish as a failover target The Target Portal Address is different for each port you connect to Appendix Manual Configuration of iSCSI 71 PersistentLogin Target does not initiate a login to the target until after the system is rebooted To establish immediate login to the target substitute LoginTarget for PersistentLogin Target F NOTE See the Microsoft iSCS Software Initiator 2x Users Guide for more information about the commands used in the previous steps For more information about Windows Server 2008 Server Core see the Microsoft Developers Network MSDN at microsoft com If you are using a Linux Server In MDSM the Configure iSCSI Host Ports displays the status of each iSCSI port you attempt to connect and the configuration state of all IP addresses If either displays Disconnected or Unconfigured respectively check the following and repeat the iSCSI configurati
28. es no redundancy Figure 2 7 Eight Hosts Connected to Two Controllers Up to 8 hosts Server 1 Server 2 Server 3 Server 4 Server 8 Storage array Corporate public or private network Hardware Installation 19 Figure 2 8 and Figure 2 9 show up to four cluster nodes connected to two RAID controller modules Since each cluster node has redundant paths loss of a single path would still allow access to the storage array through the alternate path Figure 2 8 Four Cluster Nodes Connected to Two Controllers Four cluster nodes Storage array Corporate public or private network 20 Hardware Installation Figure 2 9 Four Cluster Nodes Connected to Two Controllers Four cluster nodes Storage array Corporate public or private network Hardware Installation 21 Cabling PowerVault MD1200 Series Expansion Enclosures You can expand the capacity of your PowerVault MD3200 series storage array by adding PowerVault MD1200 series expansion enclosures You can expand the physical disk pool to a maximum of 120 or 192 if enabled using the Premium Feature activation physical disks using a maximum of seven expansion enclosures Expanding With Previously Configured PowerVault MD1200 Series Expansion Enclosures Use this procedure if your expansion enclosure is directly attached to and configured
29. g sections contain step by step instructions for configuring iSCSI on your storage array However before beginning it is important to understand where each of these steps occur in relation to your host server or the storage array environment Table B 1 shows each iSCSI configuration step and where it occurs Table B 1 Host Server Vs Storage Array This Step is Performed on the Host Server This Step is Performed on the Storage Using the Microsoft or Linux iSCSI Initiator Array Using MD Storage Manager 1 Discover the storage array 2 Configure the iSCSI ports on the storage array 3 Perform target discovery from the iSCSI initiator 4 Configure host access 5 Optional Configure Challenge Handshake Authentication Protocol CHAP authentication on the storage array 6 Optional Configure CHAP authentication on the host server 7 Connect to the storage array from the host server 8 Optional Set up in band management Appendix Manual Configuration of iSCSI 53 Step 1 Discover the Storage Array Out of band Management Only Default Management IPv4 Port Settings By default the storage array management ports are set to Dynamic Host Configuration Protocol DHCP If the controller s on your storage array is unable to get IP configuration from a DHCP server it times out after approximately three minutes and falls back to a default static IP address The default IP configuration is Controller 0 IP 1
30. gest and Header Digest Optionally you can specify that a digest of data or header information be compiled during transmission to assist in troubleshooting CHAP logon information Enter the target CHAP authentication user name and secret you entered for the host server on the storage array Appendix Manual Configuration of iSCSI 65 Perform mutual authentication If mutual CHAP authentication is configured select this option F NOTE IPSec is not supported 8 Click OK If you require a discovery session failover repeat step 5 and step 6 in this procedure for all iSCSI ports on the storage array Otherwise single host port configuration is sufficient F NOTE If the connection fails ensure that all IP addresses are entered correctly Mistyped IP addresses result in connection problems If you are using Windows Server 2008 Core version 1 Set the iSCSI initiator services to start automatically if not already set sc lt server name gt config msiscsi start auto Start the iSCSI service if necessary sc start msiscsi If you are not using mutual CHAP authentication go to step 5 Enter the mutual CHAP secret you entered for the storage array iscsicli CHAPSecret lt secret gt 5 Remove the target portal that you configured on the storage array during target discovery iscsicli RemoveTargetPortal lt IP_address gt lt TCP listening port gt 6 Add the target portal with CHAP defined iscsicli QAddTarge
31. is displayed under the Summary tab in MDSM 2 The default name for the newly discovered storage array is Unnamed If another name is displayed click the down arrow next to that name and select Unnamed in the drop down list 3 Click the Initial Setup Tasks option to see links to the remaining post installation tasks For more information about each task see the Owner s Manual Perform these tasks in the order shown in Table B 2 F NOTE Before configuring the storage array check the status icons on the Summary tab to ensure that the enclosures in the storage array are in an Optimal status For more information on the status icons see the Owner s Manualat dell com support manuals 56 Appendix Manual Configuration of iSCSI Table B 2 Initial Setup Tasks Dialog Box Task Purpose Rename the storage array software assigned label Unnamed Set a storage array password for a password before changing the configuration or performing a destructive operation Set up alert notifications Set up e mail alerts Management Console by SNMP when a Set up SNMP alerts adverse environmental condition occurs Configure a storage array To provide a more meaningful name than the To restrict unauthorized access MDSM may ask To notify individuals by e mail and or storage enterprise management consoles such as Dell storage array component degrades or fails or an To create virtual disks and map them to host
32. ise Linux BOOTPROTO dhcp Also verify that an IP address and netmask are not defined 3 Restart network services using the following command etc init d network restart Using A Static IP Address If you are using a static IP address root users only 1 Editthe etc sysconfig network file as follows 42 Post Installation Tasks GATEWAY 255 255 NETWORKING yes HOSTNAM 2550 E mymachine mycompany com 2 Edit the configuration file for the connection you want to configure either etc sysconfig network scripts ifcfg ethX for Red Hat Enterprise Linux or etc sysconfig network ifcfg eth id XX XX XX XX XX for SUSE Enterprise Linux BOOTPROTO static BROADCAST 192 168 1 255 IPADDR 192 168 1 100 N ETMASK 255 255 255 0 N 192 168 1 0 ONBOOT yes TYPE Ethernet HWADDR XX XX XX ETWORK 1XX1XX XX GATEWAY 192 168 1 1 3 Restart network services using the following command etc init d network restart Post Installation Tasks 43 44 Post Installation Tasks Uninstalling PowerVault MD Storage Software Uninstalling MD Storage Software From Windows Use the Change Remove Program feature to uninstall the Modular Disk Storage Software MDSM from Microsoft Windows operating systems other than Microsoft Windows Server 2008 1 Double click Add or Remove Programs from the Control Panel 2 Select Dell MD32xxi storage software from the list of programs 3 Click Change Remove
33. lan your configuration Recording host server and storage array IP addresses at a single location enables you to configure your setup faster and more efficiently Guidelines For Configuring Your Network For iSCSI on page 40 provides general network setup guidelines for both Microsoft Windows and Linux environments It is recommended that you review these guidelines before completing the worksheet 32 Post Installation Tasks IPv4 Settings Worksheet O HI host server Mutual CHAP Secret 192 168 131 101 In 1 default 192 168 128 101 management network port Target CHAP Secret 192 168 130 101 In 0 default PowerVault MD36x0i sees 192 168 130 102 In 0 default 192 168 128 102 management network port 192 168 131 102 In 1 default f you need additional space for more than one host server use an additional sheet Subnet Static IP address host server should be different foreach NIC Default gateway iSCSI port 1 iSCSI port 2 Management port Management port Static IP address host server Subnet Default gateway iSCSI controller 0 In 0 iSCSI controller 0 In 1 Management port cntrl 0 iSCSI controller 1 In 0 iSCSI controller 1 In 1 Management port cntrl 1 Post Installation Tasks 33 IPv6 Settings Worksheet O 1 LE 1 LE Host server Mutual CHAP Target CHAP PowerVault MD36x0i If you need additional space for more than
34. lick OK Using static IP addressing 1 Inthe Control Panel select Network connections or Network and Sharing Center and then click Manage network connections 40 Post Installation Tasks 2 Right click the network connection you want to configure and select Properties 3 On the General tab for a local area connection or the Networking tab for all other connections select Internet Protocol TCP IP and then click Properties 4 Select Use the following IP address and enter the IP address subnet mask and default gateway addresses Using A DNS server 1 Inthe Control Panel select Network connections or Network and Sharing Center and then click Manage network connections 2 Right click the network connection you want to configure and select Properties 3 On the General tab for a local area connection or the Networking tab for all other connections select Internet Protocol TCP IP and then click Properties 4 Select Obtain DNS server address automatically or enter the preferred and alternate DNS server IP addresses and click OK Using A WINS Server F NOTE If you are using a DHCP server to allocate WINS server IP addresses you do not need to add WINS server addresses 1 Inthe Control Panel select Network connections 2 Right click the network connection you want to configure and select Properties 3 On the General tab for a local area connection or the Networking tab for all other connections select
35. n redundant configuration Dual path data configuration A dual path configuration allows you to connect a maximum of four hosts Choose the data configuration based on Number of hosts required Level of data redundancy required 12 Hardware Installation Redundant and Non Redundant Configurations Non redundant configurations are configurations that provide only a single data path from a host to the storage array This type of configuration is only recommended for non critical data storage Path failure from a failed or removed cable a failed HBA or a failed or removed RAID controller module results in loss of host access to storage on the storage array Redundancy is established by installing separate data paths between the host and the storage array in which each path is set to one of the two RAID controller modules installed in the storage array Redundancy protects the host from losing access to data in the event of path failure because both RAID controller modules can access all the disks in the storage array Single Controller Configurations Figure 2 1 through Figure 2 3 show two and four hosts each connected to only one RAID controller module The hosts can share storage space but without redundant paths if one path were to fail the server on that path would be disconnected from the storage array Figure 2 1 Two Hosts Connected to a Single Controller Server 1 Server 2 Storage array Co
36. n your configuration You may need to use several worksheets depending on your configuration Keep the following guidelines in mind for the storage array and host configuration 38 For optimal performance ensure your network configuration See the storage array s Support Matrix at dell com support manuals If your host has multiple network interfaces it is recommended that each network interface uses a separate subnet For redundancy in a dual controller duplex configuration ensure each host network interface is configured to connect to both storage array controllers For optimal load balancing ensure each host network interface that is used for iSCSI traffic is configured to connect to each storage array controller It is recommended that each host network interface only establishes one iSCSI session per storage array controller NOTE The utility tries to follow the guidelines for the host connectivity whenever possible based on the available host network interfaces and their connectivity with the iSCSI host ports of the storage array Post Installation Tasks Configure the Storage Array Using MDCU To configure the iSCSI based storage array s using the MDCU 1 Launch the utility if it is not launched automatically from the server with access to the management ports of the storage array s to be configured For Windows click Start All Programs Dell MD Storage Software Modular Disk Configuration Utility For Linu
37. nstallation procedure is useful for users who want to create scripted installations Graphical Installation Recommended The PowerVault MD Storage Manager application configures manages and monitors the storage array To install the PowerVault storage software 1 28 Insert the PowerVault MD series resource media Depending on your operating system the installer may launch automatically If the installer does not launch automatically navigate to the root directory of the installation media or downloaded installer image and run the md_launcher exe file For Linux based systems navigate to the root of the resource media and run the autorun file NOTE By default Red Hat Enterprise Linux mounts the resource media with the noexec mount option which does not allow you to run executable files To change this setting see the Readme file in the root directory of the installation media Select Install MD Storage Software Read and accept the license agreement Select one of the following installation options from the Install Set dropdown menu Full recommended Installs the PowerVault MD Storage Manager client software host based storage agent multipath driver and hardware providers Host Only Installs the host based storage agent and multipath drivers Management Installs the management software and hardware providers Custom Allows you to select specific components Select the PowerVault MD
38. oftware for PowerVault systems see the Support Matrix located at dell com support manuals F NOTE It is recommended that you install all the latest updates available at dell com support The PowerVault MD series resource media storage software installer provides features that include the core software and providers The core software feature includes the host based storage agent multipath driver and PowerVault MD Storage Manager application used to configure manage and monitor the storage array solution The providers feature include providers for the Microsoft Virtual Disk Service VDS and Microsoft Volume Shadow Copy Service VSS framework F NOTE For more information aboutthe Microsoft VDS and Microsoft VSS providers see the Owner s Manualat dell com support manuals F NOTE To install the software on a Windows or Linux system you must have administrative or root privileges The PowerVault MD series resource media offers the following three installation methods Graphical Installation Recommended This is the recommended installation procedure for most users The installer presents a graphical wizard driven interface that allows customization of components to be installed Installing PowerVault MD Storage Software 27 Console Installation This installation procedure is useful for Linux users who do not want to install an X Window environment on their supported Linux platform Silent Installation This i
39. oint Go to Step 4 Configure Host Access on page 61 Appendix Manual Configuration of iSCSI 59 If you do not plan to configure CHAP authentication repeat step thorough step 6 for all iSCSI ports on the storage array If you are using Windows Server 2008 Core Version 1 Set the iSCSI initiator service to start automatically sc lt server name gt config msiscsi start auto Start the iSCSI service sc start msiscsi Add a target portal iscsicli QAddTargetPortal lt IP_address of iSCSI port on storage array gt If you are using Red Hat Enterprise Linux 5 Red Hat Enterprise Linux 6 SUSE Linux Enterprise Server 10 or SUSE Linux Enterprise Server 11 Configuration of the iSCSI initiator for Red Hat Enterprise Linux 5 and SUSE Linux Enterprise Server 10 SP1 distributions is done by modifying the etc iscsi iscsid conf file which is installed by default when you install MDSM You can edit the file directly or replace the default file with a sample file included on the PowerVault MD series resource media To use the sample file included on the media 1 Make a copy of the default etc iscsi iscsid conf file by saving it to another directory of your choice 2 Edit the following entries in the etc iscsi iscsid conf file a Edit or verify that the node startup manual line is disabled b Edit or verify that the node startup automatic line is enabled This enables automatic startup of the service at boot time c V
40. on steps Are all cables securely attached to each port on the host server and storage array Is TCP IP correctly configured on all target host ports Is CHAP set up correctly on both the host server and the storage array To review optimal network setup and configuration settings see Configuring iSCSI on Your Storage Array on page 35 Step 8 Optional Set Up In Band Management Out of band management see Step 1 Discover the Storage Array Out of band Management Only on page 54 is the recommended method for managing the storage array However to optionally set up in band management follow the procedure given below The default iSCSI host port IPv4 addresses are shown below for reference Controller 0 Port 0 IP 192 168 130 101 Controller 0 Port 1 IP 192 168 131 101 Controller 0 Port 0 IP 192 168 132 101 Controller 0 Port 1 IP 192 168 133 101 Controller 1 Port 0 IP 192 168 130 102 Controller 1 Port 1 IP 192 168 131 102 Controller 1 Port 0 IP 192 168 132 102 Controller 1 Port 1 IP 192 168 133 102 72 Appendix Manual Configuration of iSCSI F NOTE Configure the management station you are using for network communication to the same IP subnet as the PowerVault MD36x01 host ports Establish an iSCSI session to the PowerVault MD3600i RAID storage array Restart the SMagent service Launch MDSM If this is the first storage array to be set up for management the Add New Storage A
41. one host server use an additional sheet Host iSCSI port 1 Host iSCSI port 2 Link local IP address __ Link local IP address _ _ Routable IP address Routable IP address Subnet prefix _ _ _ Subnet prefix cia Gateway Gateway E E NE iSCSI controller 0 In 0 IP address FE80 0000 0000 0000 Routable IP address 1 Routable IP address 2 Router IP address iSCSI controller 0 In 1 IP address FE80 0000 0000 0000 Routable IP address 1 Routable IP address 2 Router IP address 34 Post Installation Tasks iSCSI controller 1 In 0 IP address FE80 0000 0000 0000 Routable IP address 1 Routable IP address 2 Router IP address iSCSI controller 1 In 1 IP address FE80 0000 0000 0000 Routable IP address 1 Routable IP address 2 Router IP address Configuring iSCSI on Your Storage Array The following sections contain step by step instructions for configuring iSCSI on your storage array However before you begin it is important to understand where each of these steps occur in relation to your host server or storage array environment The following table shows each iSCSI configuration step and where it occurs Post Installation Tasks 35 Table 4 2 Host Server Vs Storage Array This Step is Performed on the Host Server Thi
42. ountries for the selected regions are displayed Select the appropriate language under the country of your choice Select your business segment The main support page for the selected business segment is displayed 5 Select the appropriate option depending on your requirement F NOTE If you have purchased a Dell system you may be asked for the Service Tag Getting Help 47 Documentation Feedback If you have feedback for this document write to documentation_feedback dell com Alternatively you can click on the Feedback link in any of the Dell documentation pages fill up the form and click Submit to send your feedback 48 Getting Help Appendix Load Balancing Windows Load Balance Policy Multi path drivers select the I O path to a virtual disk through a specific RAID controller module When the multi path driver receives a new I O the driver tries to find a path to the current RAID controller module that owns the virtual disk If that path cannot be found the multi path driver migrates the virtual disk ownership to the secondary RAID controller module When multiple paths to the RAID controller module that owns the virtual disk exist you can choose a load balance policy to determine which path is used to process I O Multiple options for setting the load balance policies let you optimize I O performance when mixed host interfaces are configured You can choose one of the following load balance policies to optimize VO pe
43. port 5 Click Next 6 Select any target that is not logged in and click Log in 68 Appendix Manual Configuration of iSCSI 9 10 Select one If you are not using CHAP authentication select No Authentication Go to step 8 Or Ifyou are using CHAP authentication enter the CHAP user name and password To enable Mutual CHAP select and enter the Mutual CHAP user name and password Repeat step 7 for each target until at least one connection is logged in for each controller Go to Connected Targets Verify that the targets are connected and displays a status of true Step 7 Connect to the Target Storage Array From the Host Server If you are using Windows Server 2008 GUI 1 ao or Aa Ww Click Start Programs Microsoft iSCSI Initiator or click Start All Programs Administrative Tools iSCSI Initiator Click the Targets tab If previous target discovery was successful the ign of the storage array should be displayed under Targets Click Log On Select Automatically restore this connection when the system boots Select Enable multi path Click Advanced and configure the following settings under the General tab Local Adapter Must be set to Microsoft iSCSI Initiator Source IP The source IP address of the host server you want to connect from Target Portal Select the iSCSI port on the storage array controller that you want to connect to Appendix Manual Configuration of iSCSI
44. rformance Round robin with subset Least queue depth with subset Round Robin With Subset The round robin with subset I O load balance policy routes I O requests in rotation to each available data path to the RAID controller module that owns the virtual disks This policy treats all paths to the RAID controller module that owns the virtual disk equally for I O activity Paths to the secondary RAID controller module are ignored until ownership changes The basic assumption for the round robin policy is that the data paths are equal With mixed host support the data paths might have different bandwidths or different data transfer speeds Appendix Load Balancing 49 Least Queue Depth With Subset The least queue depth with subset policy is also known as the least I Os or least requests policy This policy routes the next I O request to a data path that has the least outstanding I O requests queued For this policy an I O request is simply a command in the queue The type of command or the number of blocks that are associated with the command are not considered The least queue depth with subset policy treats large block requests and small block requests equally The data path selected is in the path group of the RAID controller module that owns the virtual disk Changing Load Balance Policies in Windows Sever 2008 Load balancing with the PowerVault MD3200 series is only available for Windows Server 2008 and later versions of
45. ring Target CHAP Authentication on theStorageArray 63 Configuring Mutual CHAP Authentication on theStorageArray 64 Step 6 Configure CHAP Authentication on the Host Server Optional 65 Step 7 Connect to the Target Storage Array From theHostServer 69 Step 8 Optional Set Up In Band Management 72 Contents Introduction This guide provides information about deploying Dell PowerVault MD3200 and Dell PowerVault MD3220 storage arrays The deployment process includes Hardware installation Modular Disk Storage Manager MDSM software installation Initial system configuration Other information includes system requirements storage array organization and utilities F NOTE For more information on product documentation see dell com support manuals MDSM enables an administrator to configure and monitor storage arrays for optimum usability The version of MDSM included on the PowerVault MD series resource media can be used to manage both the PowerVault MD3200 series and the earlier PowerVault MD series storage arrays MDSM is compatible with both Microsoft Windows and Linux operating systems System Requirements Before installing and configuring the PowerVault MD3200 series hardware and software ensure that a supported operating system is installed and the minimum system requirements are met For more information see the Support Matrix
46. rporate public or private network Hardware Installation 13 Figure 2 2 Two Hosts Connected to a Single Controller Server 1 Server 2 Storage array Corporate public or private network 14 Hardware Installation Figure 2 3 Four Hosts Connected to a Single Controller Server 1 Server 2 Server 3 Server 4 Storage array Corporate public or private network Hardware Installation 15 Dual Controller Configurations Figure 2 4 through Figure 2 6 show two and four hosts each connected to two RAID controller modules Since each host has redundant paths loss of a single path would still allow access to the storage array through the alternate path Figure 2 4 Two Hosts Connected to Two Controllers Server 1 Server 2 Storage array Corporate public or private network 16 Hardware Installation Figure 2 5 Four Hosts Connected to Two Controllers Server 1 Server 2 Server 3 Server 4 Storage array Corporate public or private network Hardware Installation 17 Figure 2 6 Four Hosts Connected to Two Controllers Server 1 Server 2 Server 3 Server 4 eee zA RRRA A E Storage array Corporate public or private network 18 Hardware Installation Figure 2 7 shows eight hosts each connected to only one RAID controller module This configuration allows the maximum number of hosts that may be connected but provid
47. rray window is displayed Otherwise click New Select Manual and click OK 5 Select In band management and enter the host server name s or IP address es of the host server that is running the MD Storage Manager software 6 Click Add In band management should now be successfully configured Appendix Manual Configuration of iSCSI 73 74 Appendix Manual Configuration of iSCSI
48. s Step 2 Configure the iSCSI Ports on the Storage Array By default the iSCSI ports on the storage array are set to the following IPv4 settings Controller 0 Port 0 IP 192 168 130 101 S 255 255 255 0 Port 3260 Controller 0 Port T TR 192 2959295 299 0 Ports 3260 Controller 0 Port 2 IP 192 259 200 29950 Portia 3260 Controller 0 Port 3 IP 192 295 295 209 0 Port 32 60 Controller 1 Port 0 IP 192 255 2552500 Port 3260 Controller 1 Port 1 IP 192 U RB T Ww N OY H oO 2597255529570 168 168 168 168 168 LS 132 133 130 Foly 101 101 101 102 102 bne bne bne bne bne bne Appendix Manual Configuration of iSCSI Mas 57 Controller 1 Port 2 IP 192 168 132 102 Subnet Mask 2557255275540 Porti 3260 Controller 1 Port 3 IP 192 168 133 102 Subnet Mask 255 2551255 0 Port 3260 F NOTE No default gateway is set To configure the iSCSI ports on the storage array 1 From MDSM navigate to the Setup tab on the AMW 2 Click configure Ethernet management ports and then select Configure iSCSI Host Ports 3 Configure the iSCSI ports on the storage array F NOTE Using static IPv4 addressing is recommended although DHCP is supported The following settings are available depending on the configuration by clicking the Advanced button Virtual LAN
49. s Step is Performed on the Storage Using the Microsoft or Linux iSCSI Initiator Array Using PowerVault MD Storage Manager 1 Discover the storage array 2 Configure the iSCSI ports on the storage array 3 Perform target discovery from the iSCSI initiator 4 Configure host access 5 Optional Configure CHAP authentication on the storage array 6 Optional Configure CHAP authentication on the host server 7 Connect to the storage array from the host server 8 Optional Set up in band management F NOTE It is recommended that you use the PowerVault Modular Disk Configuration Utility MDCU for iSCSI configuration The PowerVault MDCU wizards guides you through the configuration steps described above If you want to perform a manual configuration see Appendix Manual Configuration of iSCSI on page 53 Automatic Configuration Using the Modular Disk Configuration Utility F NOTE If MDCU is not installed it can be installed from the MD series resource media The MDCU provides a consolidated approach for configuring the iSCSI network of host servers and iSCSI based storage arrays using a wizard driven interface This utility also enables the user to configure the iSCSI sessions of the host server according to the best practices and to achieve load balanced paths with the storage array iSCSI host ports If you select Launch the MDCU after reboot during the installation of the host software the utility automatically launches
50. stallation on a Windows system 1 Copy the custom_silent properties file in the windows folder of the installation media or image to a writable location on the host server 2 Modify the custom_silent properties file to reflect the features models and installation options to be used Then save the file 3 Once the custom_silent properties file is revised to reflect your specific installation run the following command to begin the silent installation mdss install exe f lt host server path gt custom silent properties To run silent installation on a Linux system F NOTE On Red Hat Enterprise Linux 6 operating systems run the following script from the root directory to install prerequisite packages Installing PowerVault MD Storage Software 29 md prereg install sh 1 Copy the custom_silent properties file in the windows folder of the installation media or image to a writable location on the host server 2 Modify the custom_silent properties file to reflect the features models and installation options to be used 3 Save the file Once the custom_silent properties file is revised run the following command to begin the installation mdss install bin f lt host_server path gt custom silent properties Upgrading PowerVault MD Storage Software To upgrade from a previous version of the PowerVault MD Storage Manager application uninstall the previous version see Uninstalling MD Storage Software From Windows on
51. t s by editing the following lines discovery sendtargets auth username lt iscsi initiator username gt discovery sendtargets auth password lt CHAP initiator password gt To set the user name and password for discovery session CHAP authentication of the target s by the initiator for Mutual CHAP edit the following lines discovery sendtargets auth username lt iscsi target username gt discovery sendtargets auth password in lt CHAP target password gt Appendix Manual Configuration ofiSCSI 67 7 The final configuration contained in the etc iscsi iscsid conf file might look like this node session auth authmethod CHAP node session auth username igqn 2005 03 com redhat01 78b1b8cad821 node session auth password password 1 node session auth username in ign 1984 05 com dell powervault 123456 node session auth password in test1234567890 discovery sendtargets auth authmethod CHAP discovery sendtargets auth username ign 2005 03 com redhat01 78b1b8cad821 discovery sendtargets auth password password 1 discovery sendtargets auth username ign 1984 05 com dell powervault 123456 discovery sendtargets auth password in test1234567890 If you are using SUSE Linux Enterprise Server SP3 using the GUI 1 Click Desktop YaST iSCSI Initiator 2 Click Service Start then select When Booting 3 Select Discovered Targets then select Discovery 4 Enter the IP address of the
52. t MD Storage Software 45 Uninstalling MD Storage Software From Windows 45 Uninstalling MD Storage Software From Linux 46 6 Getting Help 47 Locating Your System Service Tag 47 Contacting Dell 47 Documentation Feedback 48 A Appendix Load Balancing 49 Windows Load Balance Policy 49 Round Robin With Subset 49 Least Queue Depth With Subset 50 Changing Load Balance Policies in Windows Sever 2008 50 Setting Load Balance Policies in Linux 51 B Appendix Manual Configuration RES CIR RS ERE PERI ap Da FIERE 53 Step 1 Discover the Storage Array Out of band Management Only 54 Default Management IPv4 Port Settings 54 Automatic Storage Array Discovery 55 Manual Storage Array Discovery 56 Setting Up the Array 56 Contents Step 2 Configure the iSCSI Ports on the StorageArray 57 Step 3 Perform Target Discovery From theiSCSllnitiator 59 Step 4 Configure Host Access 61 Understanding CHAP Authentication 62 WhatisCHAP 62 Target CHAP uta teen ia 62 MutualCHAP 62 CHAP Definitions 63 Step 5 Configure CHAP Authentication on the Storage Array Optional 63 Configu
53. t in loss of access to data on the storage array The storage array is managed by MDSM running on a Host server On a host server system MDSM and the storage array communicate management requests and event information using SAS connections Management station On a management station MDSM communicates with the storage array either through an Ethernet connection to the storage array management port or through an Ethernet connection to a host server The Ethernet connection passes management information between the management station and the storage array using SAS connections Using MDSM you can configure the physical disks in the storage array into logical components called disk groups and then divide the disk groups into virtual disks Disk groups are created in the unconfigured capacity of a storage array Virtual disks are created in the free capacity of a disk group 8 Introduction Unconfigured capacity comprises physical disks not already assigned to a disk group When a virtual disk is created using unconfigured capacity a disk group is automatically created If the only virtual disk in a disk group is deleted the disk group is also deleted Free capacity is space in a disk group that is not assigned to any virtual disk Data is written to the physical disks in the storage array using RAID technology RAID levels define the way in which data is written to physical disks Different RAID levels offer different levels of
54. tPortal lt IP_address of iSCSI port on storage array gt CHAP username CHAP password where CHAP_username is the initiator name and CHAP_password is the target CHAP secret If you require a discovery session failover repeat step 5 for all iSCSI ports on the storage array Otherwise single host port configuration is sufficient If you are using Red Hat Enterprise Linux 5 Red Hat Enterprise Linux 6 SUSE Linux Enterprise Server 10 or SUSE Linux Enterprise Server 11 66 Appendix Manual Configuration of iSCSI To enable CHAP optional the following line needs to be enabled in your etc iscsi iscsid conf file node session auth authmethod CHAP To set a user name and password for CHAP authentication of the initiator by the target s edit the following lines node session auth username lt iscsi initiator username gt node session auth password lt CHAP initiator password gt If you are using Mutual CHAP authentication you can set the user name and password for CHAP authentication of the target s by the initiator by editing the following lines node session auth username_in lt iscsi_ target username gt node session auth password in lt CHAP target password gt To set up discovery session CHAP authentication first uncomment the following line discovery sendtargets auth authmethod CHAP Set a user name and password for a discovery session CHAP authentication of the initiator by the targe
55. ther directory was used during installation navigate to that directory before beginning the uninstallation procedure 2 From the installation directory open the Uninstall Dell MD Storage Software directory Run the file Uninstall Dell MD Storage Software exe From the Uninstall window click Next and follow the instructions on the screen While the software is uninstalling the Uninstall window is displayed When the uninstall procedure is complete the Uninstall Complete window is displayed 5 Click Done 46 Uninstalling PowerVault MD Storage Software Getting Help Locating Your System Service Tag Your system is identified by a unique Express Service Code and Service Tag number The Express Service Code and Service Tag are found on the front of the system by pulling out the information tag This information is used by Dell to route support calls to the appropriate personnel Contacting Dell F NOTE Dell provides several online and telephone based support and service options If you do not have an active Internet connection you can find contact information on your purchase invoice packing slip bill or Dell product catalog Availability varies by country and product and some services may not be available in your area To contact Dell for sales technical support or customer service issues 1 Go to dell com contactdell 2 Select your country or region from the interactive world map When you select a region the c
56. type Select whether or not the host server will be part of a host server group that shares access to the same virtual disks as other host servers Select Yes only if the host is part of a Microsoft cluster Click Next 8 Specify if this host will be part of a host group and click Finish Appendix Manual Configuration of iSCSI 61 Understanding CHAP Authentication What is CHAP Challenge Handshake Authentication Protocol CHAP is an optional iSCSI authentication method where the storage array target authenticates iSCSI initiators on the host server Two types of CHAP are supported Target CHAP Mutual CHAP Target CHAP In target CHAP the storage array authenticates all requests for access issued by the iSCSI initiator s on the host server using a CHAP secret To set up target CHAP authentication you must enter a CHAP secret on the storage array then configure each iSCSI initiator on the host server to send that secret each time it attempts to access the storage array Mutual CHAP In addition to setting up target CHAP you can set up mutual CHAP in which both the storage array and the iSCSI initiator authenticate each other To set up mutual CHAP configure the iSCSI initiator with a CHAP secret that the storage array must send to the host sever in order to establish a connection In this two way authentication process both the host server and the storage array send information that the other must validate before
57. ue b Turn on the storage array and wait for the status LED to indicate that the unit is ready Ifthe status LEDs are solid amber the storage array is still coming online Hardware Installation Ifthe status LEDs are blinking amber there is an error that can be viewed using PowerVault MDSM Ifthe status LEDs are solid blue the storage array is ready c After the storage array is online and ready turn on any attached host systems 5 Using MDSM update all attached expansion enclosure firmware if it is out of date a From the EMW select the enclosure that you want to update and enter the Array Management Window AMW b Click Advanced Maintanence gt Download EMM Firmware c Select Select All to update all the attached expansion enclosures simultaneously Hardware Installation 25 26 Hardware Installation Installing PowerVault MD Storage Software The Dell PowerVault MD series resource media contains software and drivers for both Linux and Microsoft Windows operating systems The root of the media contains a readme txt file covering changes to the software updates fixes patches and other important data applicable to both the Linux and Windows operating systems The readme txt file also specifies requirements for accessing documentation information regarding versions of the software on the media and system requirements for running the software For more information on supported hardware and s
58. ur network environment and IP addresses for use with the iSCSI ports on your host server and storage array In order for hosts to communicate with management and or iSCSI ports of storage arrays local NICs must be configured with IP addresses capable of communication with the addresses listed in the IPv4 IPv6 worksheet Your specific network environment may require different or additional steps than shown here so make sure you consult with your system administrator before performing this setup Microsoft Windows Host Setup To set up a Windows host network you must configure the IP address and netmask of each iSCSI port connected to the storage array The specific steps depend on whether you are using a Dynamic Host Configuration Protocol DHCP server static IP addressing Domain Name System DNS server or Windows Internet Name Service WINS server F NOTE The server IP addresses must be configured for network communication to the same IP subnet as the storage array management and iSCSI ports Using A DHCP server 1 In the Control Panel select Network connections or Network and Sharing Center and then click Manage network connections 2 Right click the network connection you want to configure and select Properties 3 On the General tab for a local area connection or the Networking tab for all other connections select Internet Protocol TCP IP and then click Properties 4 Select Obtain an IP address automatically then c
59. x Manual Configuration of iSCSI Step 6 Configure CHAP Authentication on the Host Server Optional If you configured CHAP authentication in Step 5 Configure CHAP Authentication on the Storage Array Optional on page 63 complete the following steps If not skip to Step 7 Connect to the Target Storage Array From the Host Server on page 69 Select the set of steps in one of the following sections Windows or Linux that corresponds to your operating system If you are using Windows Server 2008 GUI version 1 Click Start Programs Microsoft iSCSI Initiator or click Start All Programs Administrative Tools iSCSI Initiator 2 Ifyou are not using mutual CHAP authentication go to step 4 3 If you are using mutual CHAP authentication click the General tab and select Secret At Enter a secure secret enter the mutual CHAP secret you entered for the storage array 4 Click the Discovery tab 5 Under Target Portals select the IP address of the iSCSI port on the storage array and click Remove The iSCSI port you configured on the storage array during target discovery disappears 6 Under Target Portals click Add and re enter the IP address or DNS name of the iSCSI port on the storage array removed above 1 Click Advanced and set the following values on the General tab Local Adapter Should always be set to Microsoft iSCSI Initiator Source P The source IP address of the host you want to connect with Data Di
60. x click the MDCU icon on the desktop or navigate to the opt dell mdstoragesoftware mdconfigurationutility directory in a terminal window and run PowerVault MDCU The MDCU automatically discovers all the available storage arrays 2 In the Discover MD Arrays window select the iSCSI storage array you want to configure In the Selected Array window review current port and session information Click Config Wizard to start the iSCSI configuration wizard 5 Complete the steps in Config Wizard to configure your iSCSI storage array 6 Inthe Array Configuration Summary window review and apply your configuration settings 1 Click Create iSCSI Sessions to create host to storage array communication Repeat for all host to array mappings you want to implement 8 Verify that communication is established between the storage array and host server F NOTE For more information on MDCU see the MDCU online help Post Connection Establishment Steps After iSCSI connectivity is established between the host server s and the storage array you can create virtual disks on the storage array using MD Storage Manager and these virtual disks can be utilized by the host server s For more information about storage planning and using MD Storage Manager see the Administrator s Guide at dell com support manuals Post Installation Tasks 39 Guidelines For Configuring Your Network For iSCSI This section provides general guidelines for setting up yo

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