Sun Microsystems 440 manual Managing Disk Volumes

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The Sun StorEdge Traffic Manager software integrates multiple path I/O capabilities, automatic load balancing, and path failover functions into one package for Sun servers connected to supported Sun StorEdge systems. Sun StorEdge Traffic Manager can provide you with increased system performance and availability for building mission-critical storage area networks (SANs).

The Sun StorEdge Traffic Manager architecture provides the following capabilities:

■Helps protect against I/O outages due to I/O controller failures. Should one I/O controller fail, Sun StorEdge Traffic Manager automatically switches to an alternate controller.

■Increases I/O performance by load balancing across multiple I/O channels.

Sun StorEdge T3, Sun StorEdge 3510, and Sun StorEdge A5x00 storage arrays are all supported by Sun StorEdge Traffic Manager on a Netra 440 server. Supported I/O controllers are single and dual fibre-channel network adapters, including the following:

■PCI Single Fibre-Channel Host Adapter (Sun part number x6799A)

■PCI Dual Fibre-Channel Network Adapter (Sun part number x6727A)

■2GByte PCI Single Fibre-Channel Host Adapter (Sun part number x6767A)

■2GByte PCI Dual Fibre-Channel Network Adapter (Sun part number x6768A)

Note – Sun StorEdge Traffic Manager is not supported for boot disks containing the root (/) file system. You can use hardware mirroring or VVM instead. See “To Create a Hardware Disk Mirror” on page 57 and “Volume Management Software” on page 52.

For More Information

Refer to the documentation supplied with the VERITAS Volume Manager and Solaris Volume Manager software. For more information about Sun StorEdge Traffic Manager, refer to your Solaris system administration documentation.

Chapter 3 Managing Disk Volumes 53

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Contents Netra 440 Server System Administration Guide Page Contents Managing RAS Features and System Firmware Managing Disk Volumes Iv Netra 440 Server System Administration Guide August Figures Vi Netra 440 Server System Administration Guide August Tables Viii Netra 440 Server System Administration Guide August How This Book Is Organized PrefaceShell Prompts Using Unix CommandsRelated Documentation Typographic ConventionsSun Welcomes Your Comments Accessing Sun DocumentationThird-Party Web Sites Contacting Sun Technical SupportCommunicating With the System Configuring the System Console1Ways of Communicating With the System What the System Console Does Using the System ConsoleSerial MGT NET MGT Alom serial management port Alom network management port 3Alternative Console Ports Require Additional Configuration Alternative System Console ConfigurationAccessing the System Console Through a Graphics Monitor About the sc Prompt Access Through Multiple Controller Sessions OpenBoot ok PromptReaching the sc Prompt Reaching the ok Prompt Graceful Shutdown Alom System Controller break or console CommandL1-A Stop-A Keys or Break Key Manual System Reset Externally Initiated Reset XIRGetting to the ok Prompt For More InformationTo Get to the ok Prompt 2Ways of Accessing the ok PromptConsole # Using the Serial Management Port Accessing the System ControllerTo Use the Serial Management Port Activating the Network Management PortEstablish an Alom system controller session To Activate the Network Management Port To verify the network settings, typeLog out of the Alom system controller session To Access The System Console Through a Terminal Server Accessing the System Console Through a Terminal Server3Pin Crossovers for Connecting to a Typical Terminal Server Open a terminal session on the connecting device, and type Power on the system Accessing the System Console Through a TIP ConnectionA shell tool window on the Sun system, type To Access the System Console Through the TIP ConnectionOk power-off Modifying the /etc/remote File If the number displayed by the uname -rcommand is less thanTo Modify the /etc/remote File Netra 440 Server System Administration Guide August Ok setenv input-device ttyb ok setenv output-device ttyb Look for the following output Verifying Serial Port Settings on TtybTo Verify the Serial Port Settings on Ttyb Open a shell tool window TypeFor more information, see Getting to the ok Prompt on To cause the changes to take effect, type Output-device Ttya Ttyb Screen Input-device Keyboard System Console OpenBoot Configuration Variable SettingsNetra 440 Server System Administration Guide August Managing RAS Features and System Firmware Logging In To the Alom System Controller Alom System ControllerTo Log In To the Alom System Controller About the scadm UtilitySc showenvironment To View Environmental InformationTo turn on the Locator LED, do one of the following Controlling the Locator LEDTo turn off the Locator LED, do one of the following OpenBoot Emergency Procedures Stop-A Functionality To Restore OpenBoot Configuration DefaultsStop-N Functionality Stop-D Functionality Automatic System RecoveryTo reset the system, type the following command Stop-F FunctionalityAuto-Boot Options Error Handling Summary To Enable Automatic System Recovery Reset ScenariosAutomatic System Recovery User Commands Enabling and Disabling Automatic System RecoveryTo cause the parameter changes to take effect, type To Disable Automatic System RecoveryTo cause the parameter change to take effect, type Obtaining Automatic System Recovery Information Unconfiguring and Reconfiguring DevicesTo Unconfigure a Device Manually To determine full physical device paths, type To Reconfigure a Device Manually Enabling the Hardware Watchdog Mechanism and Its Options To Enable the Hardware Watchdog MechanismMultipathing Software Disk Volumes Managing Disk VolumesVeritas Dynamic Multipathing Volume Management SoftwareSun StorEdge Traffic Manager Managing Disk Volumes Disk Concatenation RAID TechnologyRAID 1 Disk Mirroring RAID 0 Disk StripingRAID 5 Disk Striping With Parity Hardware Disk MirroringHot-Spares C1t3d0 Devices/pci@1f,700000/scsi@2/sd@3,0 To Create a Hardware Disk MirrorFor example To Delete a Hardware Disk Mirror To delete the volume, type the following command To Perform a Mirrored Disk Hot-Plug Operation To confirm a failed disk, type the following commandTo Perform a Non-Mirrored Disk Hot-SwapOperation CD-ROM View the status of the Scsi devices# cfgadm -x removedevice c0dsk/c1t1d0 Remove the hard drive from the device treeVerify that the device has been removed from the device tree Configure the new hard driveVerify that the new hard drive is in the device tree OpenBoot Configuration Variables Baudrate, bits Appendix a OpenBoot Configuration Variables Netra 440 Server System Administration Guide August Alarm Relay Output Application Programming Interface Netra 440 Server System Administration Guide August Page Netra 440 Server System Administration Guide August Page Netra 440 Server System Administration Guide August Index SymbolsNetra 440 Server System Administration Guide August Asr-disable, 46 go Console, 11, 41 console -f, 9 poweroff, 12 poweron Uadmin 11 uname, 25 uname -r Netra 440 Server System Administration Guide August