Saturday, August 7, 2010

EMC ODM definations cleanup

Before making any changes, collect host logs to document the current configuration. At a minimum, save the following: inq, lsdev -Cc disk, lsdev -Cc adapter, lspv, and lsvg
Shutdown the application(s), unmount the file system(s), and varyoff all volume groups except for rootvg. Do not export the volume groups.

# varyoffvg Check with lsvg -o (confirm that only rootvg is varied on)If no

PowerPath, skip all steps with power names.
For CLARiiON configuration, if Navisphere Agent is running, stop it:
# /etc/rc.agent stop
Remove paths from Powerpath configuration:
# powermt remove hba=all

Delete all hdiskpower devices:
# lsdev -Cc disk -Fname grep power xargs -n1 rmdev -dl
Remove the PowerPath driver instance:
# rmdev -dl powerpath0
Delete all hdisk devices:For Symmetrix devices, use this command:
# lsdev -CtSYMM* -Fname xargs -n1 rmdev -dlFor CLARiiON devices, use this command:
# lsdev -CtCLAR* -Fname xargs -n1 rmdev -dl
Confirm with lsdev -Cc disk that there are no EMC hdisks or hdiskpowers.
Remove all Fiber driver instances:
# rmdev -Rdl fscsiX(X being driver instance number, i.e. 0,1,2, etc.)
Verify through lsdev -Cc driver that there are no more fiber driver instances (fscsi).
Change the adapter instances in Defined state
# rmdev -l fcsX(X being adapter instance number, i.e. 0,1,2, etc.)
Create the hdisk entries for all EMC devices:
# emc_cfgmgror
# cfgmgr -vl fcsx(x being each adapter instance which was rebuilt). Skip this part if no PowerPath.
Configure all EMC devices into PowerPath:
# powermt config
Check the system to see if it now displays correctly:
# powermt display# powermt display dev=all# lsdev -Cc disk# /etc/rc.agent start

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