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Migrating hdisks from vscsi to NPIV with powerpath

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Operating Systems AIX Migrating hdisks from vscsi to NPIV with powerpath
# 1  
Old 07-01-2011
Migrating hdisks from vscsi to NPIV with powerpath
Hi All,

I'm preparing to migrate some servers from vscsi to pass-thru NPIV. I am planning to have the SAN team move the exact LUNs from vio1/vio2 to those two VWWN through NPIV.

My question is on the partition itself.. right now, let's say I have hdisk0/1/2/3/4 that are part of datavg. They are virtual SCSI drives with two paths (vio1 / vio2).

I have installed powerpath and EMC ODM defs (those are symmetrix luns). When I varyoff/exportvg the old LUNs, and discover the new ones through NPIV, they will show up as "hdiskpower" devices.

Will the importvg actually recognize the data on hdiskpower devices or will it try and import the "hdisk" devices under the hdiskpower?
Or is there a specific migration path to follow?

Thanks for your help!

Frank.
# 2  
Old 08-01-2011
Hi,

of course importvg will recognize the data on the hdiskpower devices, the two 'hdisks' on emc are only paths to the same physical disk.

We did this kind of migrations in both directions - from powerpath to vio and the other way round - and haven't seen any issues so far.

Regards
zxmaus
This User Gave Thanks to zxmaus For This Post:
lapfrank
# 3  
Old 08-01-2011
Great, thank you zxmaus!

I did it last week, and I did not encounter any issues.

Frank.
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