#Create CG from existing XDP volumes?

1 messages · Page 1 of 1 (latest)

old brook
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Does anyone know if it is possible to create a new CG and adding existing XDP snapvault destination volumes? (I know this is possible with normal volumes) but is it then possible to resync snapvault on the CG level without starting a whole new resync of the whold CG ?

ashen vortex
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You can only add RW volumes to a CG.

old brook
# ashen vortex You can only add RW volumes to a CG.

OK that makes things interresting then... maybe if you break the SM, add it to an CG and then resync it up? Or else we have ended up in a dead-end with SMAS (which uses CG) and SnapCenter for VI, which didn't support CG at the time we sat op the SMAS... I think I will do some testing, so see what is possible...

old brook
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Well... I actually managed to add the XDP volume into a CG without any issues (in my test setup)...

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I am now trying to resync between the two CGs.. which is another matter... apparently I have to specify the volumes with the -cg-item-mappings option... like this: s01::*> snapmirror resync -destination-path tst_dst:/cg/tst_dst -source-path tst_src:/cg/tst -cg-item-mappings tst_src_1:@tst_src_1_dest,tst_src_2:@tst_src_2_dest,tst_src_3:@tst_src_3_dest

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But I get this strange error: Error: command failed: Relationship database write failed (duplicate entry).

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I am not 100% sure it's the correct syntax...

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...and if I run the resync without the -cg-item-mappings option I get: Error: command failed: The "cg-item-mappings" parameter is required for a "create" operation for a SnapMirror relationship between Consistency Groups.

ashen vortex