Texas Instruments TMS320DM6446 DVEVM v2.0 Calculator User Manual
Contents
1. 15 4 1 Connectie tothe MCP ioe is ode cs E aos 15 4 1 1 RS232 Serial Porco lla ea serene 15 4 1 2 RSI REA E 15 4 2 Connecting using a terminal program i 15 4 3 Connecting using telnet usina aaa eres 15 24 Bosse into essenza 15 4 5 MEP Commands lara lle rela 16 4 5 1 A bian 16 4 5 2 BP S DER SE SETE SEES SS ENES DES ed RE ESS SE 16 4 5 3 CONFIGSYS lui 16 4 5 4 FIRMWARE last 16 4 5 5 IPCONFIG S 52 16 4 5 6 EUNCON E dd 18 4 5 7 MANAGE ab 18 4 5 8 PASS WORD ads El 18 4 5 9 PERFORMANCE aa Pa 19 43 10 PORTE ONPIG donadas 19 45110 POWEROBE e be o a do 19 43 12 REBOOT isa 19 40 13 RESE Dti aa 19 SA STATIST 20 Chapter 5 Chapter 5 Hot Swap Components coooooccnccccnoncccnoncnononcnononcnonnnononnncnnnnncninnnnnos 21 5 1 Hot Swapping Power Supplies isonsicisso jui iaia lat 21 22 Hot Swapping Disk Drives italia 22 5 3 Hot SWappme Fans pura tollera 22 Chapter 6 Bateria io 24 Chapter 7 Itoubleshoetins taa di todos 25 Chapter amp gt Specifications cas ada ns cid 26 8 1 Physical ACA sa Ear 26 8 2 Operas F re 26 8 3 Non operating Environment criari rici 26 ng O 26 Appendix A RamSan 210 Replacement Parts 27 iv Figures Figure 1 RamS ar 210 Layout cesta tues ll 6 Figure 3 2 RamSan 210 Front Panels tdds 10 Figure 5 3 Default LUN contrato ita 21 Figure 5 4 Reconfigured LUN mapping ii 21 Preface Document Overview This document provides o2. Current IP assignment RARP Select option Select static Select DHCP Select BOOTP Select RARP Disable Ethernet OP WD FE Enter selection To set the RamSan 210 up with a static IP type 1 and press enter You will then be prompted for IP address subnet mask and gateway address If your network does not use a gateway use the gateway address of 0 0 0 0 to disable this feature The output will look like Ethernet IP address 255 255 255 255 192 168 0 100 Ethernet subnet mask 255 255 255 0 255 255 255 0 Ethernet gateway 0 0 0 0 lt enter gt All other options set the assignment mode and return you to the main menu immediately You may cancel from this menu by selecting the same assignment mode as the current IP assignment value The option 2 Change hostname from the main menu allows you to change the hostname associated with the RamSan 210 If you are configuring your system with a static IP address you will be presented with options 3 4 and 5 on the main menu These options allow you to change the IP subnet and gateway values for the Ethernet 17 To exit the IP configuration utility select S to save the changes you have made The network will be reconfigured to use the new Ethernet settings you have chosen To discard any changes you have made use the Q option 4 5 6 LUNCONFIG This command is a memory partitioning tool that allows the administrator to configure sys
3. L button After confirming the new IP assignment mode the display will indicate Shutt ing Down Network followed by a success or failure message The display will then indicate Saving IP Config followed by a success or failure message Next the RamSan 210 will attempt to start the network with the new settings indicated on the front panel display with Restarting Network Upon success the new IP address is displayed on the front panel for 15 seconds or until any button is pressed If the network fails to start check the Ethernet connection and contact your system administrator If the IP configuration was successfully saved you may simply select the Restart Network option from the Ethernet Setup menu instead of re selecting the same IP configuration For any questions regarding IP assignment values please consult with your network administrator 3 4 Manual Shutdown The RamSan 210 may be shut down from the front panel This procedure will safely synchronize all data in RAM to the internal disk drive storage To shut down the system using the front panel use the arrow buttons to cycle through the top level menu to select Manual Shutdown Use the Select button to select this menu item You will be prompted to confirm that you wish to Power Off System To cancel the shutdown use the T button again to return to the main menu To proceed with the shutdown use
4. a system that includes RAID or JBOD The RamSan 210 can be connected via Fibre Channel to host servers NAS filers or to storage network switches and hubs If you have specific questions about compatibility please see or contact Texas Memory Systems directly The RamSan 210 can be used in a variety of applications If your application is slowed down by hard disk drives there is a good chance that the RamSan 210 can speed it up 1 2 System Components The system components for the RamSan 210 include e Main system memory ranging from four gigabytes to thirty two gigabytes e Either two or four one gigabit Fibre Channel ports e Dual redundant hot swappable power supplies e Dual redundant hot swappable 10 000 RPM hard drives e Dual redundant batteries e Dual redundant hot swappable fans e Ethernet monitoring port e Serial monitoring port e Front panel display for monitoring and configuration e SNMP based monitoring 1 3 Power Requirements The RamSan 210 requires 150 watts of power for a fully loaded system The RamSan 210 includes two power supplies Only one power supply is needed to run the system The power supplies are auto ranging they will accept either 110 or 220 power Each power supply is connected to an internal battery The batteries provide at least one hour of operation after a power failure The power supplies and the batteries are linked In other words if a power supply is not plugged into the system its atta
5. the L button to confirm the system power off The front panel 12 display will now indicate that the system is powering off This will typically take between 5 and 15 seconds to complete As a reminder in order to turn the RamSan 210 back on after a manual shutdown it is necessary to press the top button on either power supply 3 5 System Monitoring When the menu on the front panel is not in use it is possible to monitor various aspects of the system The following information is presented e Fibre Channel port bandwidth The front panel displays the Read and Write performance of each Fibre Channel port As seen in the picture the indicator lights correspond to the actual location of the ports on the RamSan 210 The top indicators are for the top Fibre Channel interface board The bottom indicators are for the bottom Fibre Channel interface board The left and right indicators map to the left and right sides of the interface boards when you look at them from behind For each channel the top half of the graph represents read megabytes per second in 10 megabyte per second increments The bottom half represents write bandwidth e Restore Backup Progress During any backup or restore the front panel will display the operation progress and estimated time remaining until completion e Status The following status levels are possible o Good This is normal Operation o WARN This indicates that a System Warning ha
6. 5 3 Hot Swapping Fans The fans in the RamSan 210 can be removed and replaced during system operation There are two blocks of three fans each The blocks are accessed from different locations The rear fan block is easily accessed from the rear of the chassis Removing the front panel from the RamSan 210 provides access the front fan block Dd The following steps should be performed to hot swap a fan block 1 Slide the latch on the fans to the left and simultaneously pull firmly on the fan handle The unit will slide out from the chassis Use caution to avoid hitting the spinning fan blades once removed 2 Firmly insert the new fan block into the RamSan 210 chassis The fans will begin immediate operation once inserted into the chassis Important Failed fans should be replaced as soon as possible 23 Chapter 6 Batteries The RamSan 210 is equipped with two redundant one hour Lithium Ion batteries The batteries are designed to support the RamSan s operational modes Specifically if external power to the RamSan 210 is lost the system will continue to function running on the internal batteries The batteries in the RamSan 210 are linked to the power supply units In the event a power supply is removed or broken its attached battery will not work The batteries are designed to provide power for the system in the event external power is lost not in case both power supplies fail The RamSan 210 can be configured to run on
7. TEXAS MEMORY SYSTEMS INC RamSan 210 User s Manual Version 1 1 mE RamSan 210 Texas Memory Systems In Any trademarks or registered trademarks used in this document belong to the companies that own them Copyright O 2001 Texas Memory Systems Inc All rights are reserved No part of this work may be reproduced or used in any form or by any means graphic electronic or mechanical including photocopying recording taping or information storage and retrieval systems without permission of the copyright owner Table of Contents Prost ed al ns nal ee ebbro e dt e tol T 1 Document OYE dis 1 Conventions cuarta 1 Ehapter lt Introducido ia 2 1 1 COV OLVICW sata e da de a ii ii 2 1 2 System Components sorella ai ri 2 1 3 PowetRegiiremenis ile pel EA 3 LA NO Voks 3 Chapter 2 Installation iaa tii 5 2 1 Electro Static Discharge Warning ds 5 22 Filen Minne 5 23 System he TG 5 24 Rok Mois ai 7 DD Connecting the Fibre Channel Ports s r rressnssesvsvssernrssersvesernrssernsesernnsseresesnsnsesnnese 7 2 6 Connecting the Power Supplies siicscssiaassaeedeiassescdecassdcacaussdenesdededatasestadevusedeneente 7 257 O RN 9 2 8 System Initialization idas 9 Chapter 3 Using the Front Panels rapera 10 3 1 vere ar 10 3 2 Meni System Layout sandheden nerne 11 3 3 Ethernet Sepan aa asini 11 34 Manual Sh tdoWh sissioni tins Nga 12 3 5 System Monitoring id reinas 13 Chapter 4 The Management Control Port MCP
8. The RamSan 210 uses both a serial port and an Ethernet port to allow you to monitor and configure the system To access the system s Ethernet port the RamSan must be assigned an IP address subnet mask and possibly a gateway The IP address may be assigned in one of five ways Static IP DHCP BOOTP RARP or No Ethernet To setup the Ethernet use the arrow buttons to cycle through the top level menu options until Ethernet Setup is showing on the display Use the Select button to choose this option and continue with the configuration You may now use the arrow buttons to scroll through the following menu options Set IP Config Restart Network Show Current Config and Exit Menu Restart Network will shutdown and restart the Ethernet port using the current IP assignment configuration Selecting Show Current Config will display a list of the current IP configuration hostname IP address subnet mask gateway address if applicable and hardware Ethernet address Use the arrow buttons to scroll up and down through the list Pressing the Menu button will return to the previous menu and pressing the Select button will exit the menu system To continue setting up the Ethernet configuration select Set IP Config 11 After selecting Set IP Config you may use the arrow buttons to cycle though Static IP DHCP BOOTP RARP None and No Cha
9. The top indicator light shows when the power supply is operating below the voltage necessary to power the entire system Low voltage indications are a sign that the power supply needs to be monitored and possibly replaced e Battery Operation indicator light The bottom indicator light shows when the system is operating from battery power The system should only operate from battery power when external AC power has failed Warning The power supply modules maintain high voltage levels during normal operation To prevent the risk of electrical shock remove the power cord and wait 15 seconds before removing a power supply module 2 7 Turning on the System The RamSan 210 will automatically power on when power is connected to the system The only time the system will not automatically power on is when a user has initiated a Manual Shutdown of the system In the event this has happened it is necessary to press the top button on either power supply Please see 2 6 Connecting the Power Supplies 2 8 System Initialization The front panel display shows the current state of the boot process Once the power is connected the system will turn on automatically and the front panel will begin the power on sequence The following will happen automatically this boot sequence can also be monitored externally through the serial port or Ethernet port 1 After approximately seven seconds the RamSan 210 will power up 2 You should see Texas Memory Syst
10. a power supply module e Disconnect the power cord from the power supply that needs to be replaced e Wait 15 seconds e Remove the power supply from the RamSan 210 chassis by pressing the release switch and pulling squarely on the power supply handle DO NOT REACH INSIDE THE PROTECTIVE ENCLOSURE AFTER REMOVING THE POWER SUPPLY e Insert the replacement power supply in the RamSan 210 chassis Make sure to insert the power supply squarely and press firmly until the power supply is fully inserted into the system e The new power supply will begin to operate within a couple of seconds Important The power supply modules are linked to the batteries If a power supply module is removed the battery that feeds 1t will not provide power to the system In other words the batteries only work when attached to a functional power supply Never simultaneously remove both power supplies while the system is running The system will cease operation Important Failed power supplies should be replaced as soon as possible 21 5 2 Hot Swapping Disk Drives The RamSan 210 includes two mirrored hard disk drives The system can operate with two disks operational one disk operational or no disks operational Normal operation mirrors writes to both disk drives If a single disk drive fails the system will continue to write to the available disk drive At this point it is desirable to replace the malfunctioning disk with a new disk drive Once inse
11. battery power for up to fifteen minutes after external power is lost The system default is to stay on for five minutes after power fails Because the RamSan 210 uses a mirrored writes mode the system only has to stay on for one minute in order to clear the disk buffer and disk cache The amount of time that the RamSan 210 stays on line can be user defined from one to fifteen minutes If power is restored within this time period the system will stay online 24 Chapter 7 Troubleshooting After the system runs short self tests on each internal component the hardware initiates synchronization between disk and memory To obtain further information about the failing location the management port must be used Contact Information Texas Memory System Inc 11200 Westheimer Suite 1000 Houston Texas 77042 713 266 3200 25 Chapter 8 Specifications 8 1 Physical Characteristics Rack Mount Size 2U 3 5 x 25 deep Weight 50 Ibs Voltage 110 or 220 VAC Ventilation Side to side airflow Rear exhaust for power supplies 8 2 Operating Environment Temperature 32 85 F 0 30 C Max relative humidity 80 non condensing Max heat dissipation 512 Btu hr 150 W Power consumption 100 150 W 8 3 Non operating Environment Temperature 32 150 F 0 65 C Relative Humidity 10 90 non condensing 8 4 Warranty 1 year FOB Texas Memory Systems Inc Houston Texas 26 Appendix A RamSan 210 Re
12. ched battery will not work If the power supply is broken its attached battery will not work If the power supply is plugged in and functional the battery should operate properly In the event one battery or power supply is disabled the other functional power supply and battery combination will be able to handle system operation Power supply temperature can be monitored from the system monitoring software If power is lost the system will operate for a user defined number of minutes before shutting down When the system shuts down it will clear the write buffers by writing to the mirrored internal disk drives When power is restored the RamSan 210 will resume normal operations after restoring system memory with the data from the disk drives The system will also begin recharging the batteries Battery charge levels can be monitored using the bundled remote monitoring software 1 4 Non Volatility By utilizing internal hard drives and batteries the RamSan 210 combines the performance of SDRAM storage with the non volatile nature of hard disk drives The RamSan 210 is equipped with dual redundant hot swappable hard drives Each of these drives is able to operate at about 30 MB sec during operation RAID 1 is implemented on this drive array to provide a redundant configuration for the non volatile storage In order to operate the drives after a power failure occurs the RamSan 210 contains dual redundant batteries When fully functional and f
13. ems appear on the front panel as well as RamSan 210 Soon after that you will see Boot ing and Initializing RamSan 3 After the firmware has finished booting the front panel display will indicate Bringing Disks Online The system disks take approximately 10 seconds each to spin up 4 The front panel will indicate Restoring and show a progress bar and give an estimated time till Menu completion Administrators may use this to determine how much time before the system is on line This information is also available through the telnet remote y monitoring software in the status command This process will take approximately 2 minutes 15 seconds for every 4 gigabytes of memory in the system 5 Once the system has restored data the system will display Status Good and show the performance bars for each Fibre Channel port Select 4 Restoring 73 0 EEG The system is now ready for normal operation Please see Chapter 7 Troubleshooting for possible error conditions during start up Please see Chapter 3 Using the Front Panel for more information on configuring the Ethernet and monitoring system health Chapter 3 Using the Front Panel 3 1 Overview The front panel for the RamSan 210 allows you to inspect the state of the system change the method of IP address assignment and shutdown the system Four buttons located to the left of the panel are used to make selecti
14. he IP using the front panel display or from the serial port For a complete description for configuring the Ethernet using the front panel please refer to Section 3 3 of this manual If you are configuring the Ethernet using the serial port refer to Section 4 5 5 of this manual 4 2 Connecting using a terminal program To connect to the RamSan 210 using a serial port connection you must use a dumb terminal or a terminal emulation program such as Windows HyperTerminal Your baud rate should be set to 9600 with 8 data bits 1 stop bit no parity and no flow control 4 3 Connecting using telnet Once the Ethernet port on the RamSan 210 has been configured using either the front panel or the serial port you may remotely monitor the system using a telnet session Your terminal settings should be set to VT100 mode 4 4 Logging into the system The RamSan 210 has two login accounts root and user Default passwords for both accounts have been left blank 15 4 5 MCP Commands 4 5 1 EXIT The exit command is used to close a monitor session The QUIT command also performs the same action 4 5 2 HELP The HELP command provides a brief online description of each command that is available Commands that require parameters are listed with the lt parameters gt as options Commands with optional parameters are listed with the parameters as options 4 5 3 CONFIGSYS The system configuration utility a
15. his fault tolerant approach is designed into the system in order to provide the ultimate in data availability Chapter 2 Installation 2 1 Electro Static Discharge Warning Important Please take full E S D precautions if it is necessary at any time to come into contact with any circuit boards components or connectors The components used in the RamSan 210 and its interfaces can be damaged by electrostatic discharge 2 2 Battery Warning The internal batteries in the RamSan 210 are charged with enough voltage to power a fully loaded system for approximately one hour However the batteries may not be fully charged when you install your system Therefore be sure your batteries are fully charged before you use the system where there is risk of power failure 2 3 System Inspection The RamSan 210 should be shipped complete with a packing list Make sure you have received all of the components listed 1 Examine the external chassis for any damage that might have occurred during shipping 2 Make sure that both power supplies are locked securely in place and that both backup drives have not come loose Inspect the interface plate for any screws that might have loosen during shipping Inspect both the front and rear fans to make sure they are locked in place Inspect the front panel screen for damage Report any meaningful damage to Texas Memory Systems Da Figure 1 shows an overhead view of the layout of the RAM SAN system co
16. llows you to configure various system dependant options Currently the only option available is the amount of time the management controller waits after power loss before it initiates an automatic shutdown Ethernet configuration utility 1 Set time to wait after losing power before system shutdown Q Exit Select By selecting option 1 you may set the power down delay to be between 1 and 15 minutes The default value is 5 minutes 4 5 4 FIRMWARE The FIRMWARE command shows the firmware revision levels for various components in the RamSan 210 This command is mainly for internal use for tracking firmware revision levels 4 5 5 IPCONFIG The Ethernet monitor port is configured using the IPCONFIG command The RamSan 210 supports IP assignment through DHCP BOOTP RARP or setting a static IP This command may only be used from the serial port since it involves changing the network settings Here is a demonstration of the command ram san gt ipconfig Ethernet configuration utility RARP ram san 00 20 c2 00 08 05 IP assignment mode Hostname Ethernet MAC Address 16 192 94 231 206 255 255 255 0 IP Address Netmask Select option Change IP assignment mode Change hostname Save changes restart the network and exit Cancel No changes OUuUNE Enter selection To change the IP assignment mode enter 1 This will present the following screen Ethernet configuration utility
17. meter to the command 19 4 5 14 STATUS The STATUS command provides a variety of configuration details for the MCP and the Fibre Channel controllers ram san gt status Texas Memory Systems Inc RamSan 210 Monitor Software Version 1 0 1 Ethernet address 00 20 c2 00 08 05 Ethernet IP 192 94 231 206 Capacity 4096 Megabytes System Status System Idle FC32 Controller 1 Not installed FC32 Controller 2 Firmware version 0 9d Channel A 10 02 00 20 c2 00 08 03 offline Channel B 11 02 00 20 c2 00 08 03 offline 20 Chapter 5 Hot Swap Components One of the main features of the RamSan 210 is the ability to hot swap many of the system components The power supplies fans and disk drives can all be hot swapped meaning that these components can be removed and replacement components reinserted while the system is running 5 1 Hot Swapping Power Supplies The RamSan 210 includes two power supplies The system only requires one functioning power supply to run Texas Memory Systems has taken special care to enclose the RamSan 210 power supplies in a protective case in order to minimize the electrical risks for users It is critical however that users follow the following steps when removing and replacing the power supplies Warning The power supply modules maintain high voltage levels during normal operation To prevent the risk of electrical shock remove the power cord and wait 15 seconds before removing
18. mponents 241111 1335 1433 eee 1444 EEEF mo Figure 1 RamSan 210 Layout 2 4 Rack Mounting The RamSan 210 is a 2U rack mountable system The system is shipped with the slides and equipment needed to install it into a standard 19 rack 2 5 Connecting the Fibre Channel Ports After you have inspected the system and properly mounted it connect the Fibre Channel ports on the RamSan 210 to either your server or to a Fibre Channel switch See fora list of TMS approved SAN hardware Controller 1 Controller 2 Figure 2 2 RamSan 210 Interface Plate Your system will be equipped with either one or two FC32 Fibre Channel controllers Figure 2 shows the port layout for the RamSan 210 Each controller has two Fibre Channel ports A and B on the left and right respectfully These port numbers have no correlation to the port identifiers assigned during port login They are only used in the management utilities for identification and LUN assignments The interface plate also has a DB 9 RS 232 serial connection and an RJ 45 Ethernet port These ports are used for local and remote management of the system The FC32 ports on the system are capable of connecting to point to point arbitrated loop and switched fabric topologies 2 6 Connecting the Power Supplies The RamSan 210 is equipped with dual redundant hot swappable power supplies that operate on 110 220 VAC line power Using the provided AC power cords connect both powe
19. nge Talk to your system administrator for the proper IP assignment type Use the Select button to select the desired method of IP assignment If you did not choose Static IP you are asked to confirm the selection with the J button If you are setting up the RamSan 210 with a static IP you need to have the Ethernet IP subnet mask and a gateway address if you need to access the device from a different network After you have chosen Static IP Ethernet IP replaces the top line of the display and you will be prompted to enter an IP The TP or 4 buttons cycle through the numbers 0 through 9 To select the value use the Select button The input prompt will move to the next character position To back up a space press the T and J button simultaneously You can press the Menu button at any time to cancel the Static IP assignment Repeat this procedure until the 4 byte address has been entered After you have finished entering the IP the top line of the front panel will change to Subnet Mask Using the same procedure as entering the IP address enter the subnet mask The final value you must enter is the Gateway Address If the RamSan 210 is on a private network and this value is not needed enter the value 0 0 0 0 to tell the RamSan 210 to ignore this entry After entering all three values you will be prompted to confirm the command with the
20. ons Figure 4 1 is a picture of the front of the system mE RamSan 210 Texas Memory Systoms Inc Figure 3 2 RamSan 210 Front Panel The buttons on the front panel serve the following functions e Menu The Menu button has two functions o Function 1 On any of the status or performance displays pressing the Menu button will launch the RamSan 210 Main Menu o Function 2 Escape function Pressing Menu once the menu is open returns the user to the prior screen e Select If Select is pressed when a menu item is on the screen the system will either execute that menu option or proceed to the next layer in the menu This button is disabled if the menu is not selected e T The T button scrolls up through the menu The T is also used cancel certain commands as indicated on the display This button is disabled if the menu is not selected e J The 4 button scrolls down through the menu The 4 is also used confirm certain commands as indicated on the display This button is disabled if the menu is not selected 10 3 2 Menu System Layout The front panel menu system is as follows RS 210 Main Menu e Ethernet Setup Set IP Config Static s TP Subnet Mask Gateway DHCP BOOTP RARP None No Change Exit Restart Network Show Current Config Exit Menu e Manual Shutdown Power off System e Exit Menu 3 3 Ethernet Setup
21. perating procedures for the RamSan 210 It covers installation management and troubling shooting issues Conventions The following textual conventions are used in this document Select Front panel button descriptions Ethernet Setup Front panel text menu items lunconfig Management port serial telnet commands and text Chapter 1 Introduction 1 1 Overview The RamSan 210 is a solid state disk The system uses SDRAM memory as primary storage The system is non volatile because all writes are mirrored to two internal hard disk drives and stored in memory All reads occur from memory This architecture provides uncompromised performance and security The RamSan 210 is designed to be highly available and fault tolerant The system is more highly available than RAID or JBOD systems because the primary storage media is SDRAM There are no moving parts required to store dataon SDRAM Additionally SDRAM has a very high mean time between failures as high as several hundred years according to some studies The mechanical components in the RamSan 210 are redundant and hot swappable The RamSan 210 is a complement to existing disk drives JBOD or RAID in performance sensitive applications The RamSan 210 appears as another SCSI disk drive that has been attached to the server For some applications the RamSan 210 is the only storage system that will be required For applications that store terabytes of data the RamSan 210 will be added to
22. placement Parts Figure B 1 MCP31 Management Control Processor Figure B 2 FC32 Dual channel 1 gigabit Fibre Channel controller oe Figure B 3 PWR21 Power Supply Module Figure B 4 FAN21 Hot swappable fan tray 28 Figure B 5 MEMGA1 4 Gigabyte memory blade Figure B 6 TDD21 18 gigabyte replacement hard drive 29
23. r supplies to a source of power For normal system operation make sure both power supplies are connected to an external power source Since the power supplies are redundant you may remove line power from one without any interruption in Fibre Channel service However if external power is completely lost all Fibre Channel ports will go into a standby mode after a short user defined timeout period because the system will power off Warning Do not remove both power supplies from the system at the same time This will cause system failure since the internal batteries require that at least 1 power supply be present in the system at all times If both supplies are physically removed from the chassis possible data loss may occur On switch Low Voltage Figure 2 3 RamSan 210 Power Supply Modules The following buttons and indicators are on the power supply e The top button provides a means to activate the power supplies turn them on after a user initiated system shutdown When a user initiates a shutdown of the system the power supplies are typically still connected Therefore the system cannot use the presence or absence of AC to know whether to operate In order for the power to come on after a user initiated shut down the top button must be pressed on either of the power supplies If power is restored after a power failure or a power cord is reinserted the system will automatically power on e Low Voltage indicator light
24. rted the system will rebuild the disk by executing a disk to disk copy Overall system write performance will be degraded during the restore but read operations will continue uninterrupted Important Do not remove either disk drive during a disk to disk copy Removing either disk drive will destroy data on both disks This will then require both drives to be removed and replaced for a memory to disk resynchronization If both disks fail the system will perform all operations from memory This is a volatile state When functional disks are inserted the system takes the Fibre Channel interfaces off line and executes a memory to disk copy The following steps should be used to replace bad disk drives 1 Verify that a disk to disk copy is not in progress If it is in progress then wait for the disk to disk copy to complete 2 Slide the disk eject latch to the right 3 Remove the disk by pulling squarely on the handle 4 Insert new disk squarely into the available slot Make sure the disk drive is completely inserted into the system and flush with the chassis Important Failed disk drives should be replaced as soon as possible You should only use TMS factory certified disk drives for replacement Important It is not advised to remove disks that are functional The action should be perfectly safe unless a disk to disk copy is in progress but will impact system performance as the new disk drive is rebuilt from the mirror
25. s been detected Possible warnings include Front or rear fan trays removed Power supply removed AC Lost at one or both power supplies One or both batteries have been removed Temperature warning One or both disks removed 13 o FAIL This indicated that a System Failure has been detected Possible failures include Front or rear fan trays have a failed fan Power supply failed One or both batteries have failed System overheated One or both disks have failed In the case of either System Warnings or Failures the front panel display will alternate between displaying status information and Warning Failure messages every 10 seconds 14 Chapter 4 The Management Control Port MCP 4 1 Connecting to the MCP The management port on the RamSan 210 allows you to manage configure and monitor system behavior This includes obtaining status information about internal hardware configuring the LUNs and obtaining data rates of the system You may connect to the management port using either a DB 9 serial cable or an RJ 45 Ethernet cable 4 1 1 RS232 Serial Port To connect to the serial port use the DB 9 non null serial cable supplied with the system You need to set your terminal program to 9600 baud 8 data bits no parity and 1 stop bit 4 1 2 Ethernet In order to use the Ethernet port you must first configure the IP address for the RAM SAN You may configure t
26. tem memory into LUNs that may be assigned to specific Fibre Channel ports in the RamSan 210 The LUNs may also be assigned access lists that mask the visibility to specific servers 4 5 7 MANAGE The manage command allows the user to enable or disable network management methods The Manage command also supports configuration of SNMP When option 1 is selected it toggles the current value For example if the current value is disabled then selecting 1 will change the value to enabled The following screen displays show the output from the SNMP commands ram san gt manage Management configuration utility Telnet enabled SNMP disabled Select option 1 Disable telnet management 2 Configure SNMP S Save changes and exit Q Discard changes and exit Enter selection 4 5 8 PASSWORD Since it is possible to access the RamSan 210 remotely through the management port a password feature has been included for system security By default the root and user passwords are left blank In order to change the password the current password must be entered first However on the console the password may be overridden without requiring the current password 18 The password feature is automatically bypassed when logging in on the serial console This feature allows a system administrator access to the RamSan 210 if the password is forgotten or lost 4 5 9 PERFORMANCE The PERFORMANCE command may be
27. ully charged the batteries are able to provide about one hour of operation The management control port MCP monitors the internal disks and batteries for a failure condition In such an event the management card will notify the operator of an error through the front panel display and over the Ethernet The RamSan 210 operates in mirrored write mode All data written to the RamSan 210 system memory is also automatically mirrored to the internal disk drives An internal cache is used to allow for write bursts to occur without incurring a delay for each write Since all write operations are synchronous in this mode there is no need to copy data from memory to disk when a power failure occurs The system simply waits a user selectable amount of time default of 5 minutes before the RamSan 210 is powered off While writes are made to both disks and memory all reads are done directly from memory Therefore the RamSan 210 is an excellent solution for applications that are read intensive Statistically most applications have 80 reads and 20 writes For systems that are write intensive please contact Texas Memory Systems to discuss configuration alternatives The RamSan 210 with two FC32 Fibre Channel controllers should be able to provide very close to 400MB second of read performance The system will automatically conduct all reads and writes from the disk drives in the event of a main memory failure this type of failure is not expected T
28. used to view the bandwidth of each port The monitor shows the average bandwidth of each port over a period of one second This performance view shows only DMA activity and does not show other Fibre Channel activity To stop the output from this command press Q ram san gt perf Press s to toggle scroll mode q to quit Controller 1 Controller 2 A Band I O B Band I O A Band I O B Band I O 93 2 345 97 2 370 96 6 359 95 2 350 96 5 356 97 1 369 97 0 367 92 8 337 4 5 10 PORTCONFIG The PORTCONFIG command is used to configure the Fibre Channel controllers After the PORTCONFIG command is entered the current configuration is listed and the available options are listed 4 5 11 POWEROFF The POWEROFF command is equivalent to a front panel Manual Shutdown This will power off the system Before powering off the system all writes will be completed Note To resume operation it is necessary to press the top button on either power supply 4 5 12 REBOOT The Reboot command allows a system administrator to reboot the management controller This command should only be needed under rare circumstances 4 5 13 RESET The RESET command allows the administrator to reset individual ports on the RamSan 210 This command should only be needed under rare circumstances since the Fibre Channel ports handle the appropriate reset protocol To issue this command a port number is specified as a para
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