VTL - Powering off and powering on a VTL node and Disk array (shutdown procedure)

Asset ID:	1-71-1339038.1
Update Date:	2011-07-21
Keywords:

Solution Type Technical Instruction Sure

Solution 1339038.1 : VTL - Powering off and powering on a VTL node and Disk array (shutdown procedure)

Applies to:

Sun StorageTek VTL Prime System - Version: 1.0 - Build 1813 to 1.1 - Build 2076 - Release: 1.0 to 1.0
Sun StorageTek VTL Plus Storage Appliance - Version: 1.0 - Build 1323 to 2.0 - Build 1656 [Release: 1.0 to 2.0]
Information in this document applies to any platform.

Goal

How to power off and power on a VTL node and disk array
Graceful shutdown of VTL for scheduled power maintenance

Solution

Powering Off

Halt all I/O between client hosts and VTL Server, by suspending backup jobs on backup app servers (power off backup app servers if necessary)
If VTL HA config, suspend failover on both VTL servers through the Console (right-click on server->Failover->Suspend Failover)
Halt the VTL server(s) through the VTL Console (right-click on server->System Maintenance->Halt)
Once system is halted, if server does not automatically power off, power off by depressing power button
* If unsure system is halted, try to remote into server and check status.
* Alternately, system can be shutdown via command line:
# vtl stop
# sync;sync;shutdown -y (for Linux 'shutdown –h now')
Verify through Santricity that the status of the disk array is optimal (this is only to be aware of any pre-existing issues)
Power down the controllers
Wait a minute or two (FLX array service manuals say to wait 5 mins) and then power down all drive trays
Turn off the power switches in the back of the F40 cabinet, which removes power to ALL devices plugged into the PDUs.

Powering On

CAUTION - Turning off and turning on the power of the arrays without waiting for the disk drives to spin down can damage the drives and may cause data loss. Always let at least 30 seconds elapse from when you turn off the power until you turn on the power again.

Verify all power switches are turned off on the VTL Node, array controllers, and both disk subsystem modules
Turn on the power switches in the back of the F40 cabinet
Power on ALL drive trays
Wait five-ten minutes (to allow drives to spin up completely)
Power on the controllers
Verify through Santricity that the status for the array is Optimal (or same state as it was before power off).
Power on the VTL node(s)
Verify VTL nodes are optimal (from VTL command line, run commands ‘vtl status’, ‘sms –v’ and ‘ifconfig –a’ to verify all processes are running and apparent problems exists)
If VTL HA config, resume failover on each node (right-click on server->Failover->Resume Failover)
Startup backup app server and applications and verify they can see the virtual devices.

Note1: This procedure is generic as it relates to the different disk arrays attached to VTL, and procedures will be similar between disk array sub-systems, but each may have its own specifics. Refer to each disk sub-system maintenance/service manual for more details.

Note2: If physical tape library is also attached to VTL, be sure the physical library is powered back on before the VTL servers are powered up (do this before Power Up step 7 above).

If only the VTL server is to be shutdown and restarted, see Knowledge doc id 1022256.1

Attachments

This solution has no attachment