Ops Center

Hello, 

last, I used "Volume Migration" in OpsCenter to migrate an ESX - Boot Volume from an older VSP to this newer one.
It works - but I saw the used capacity before and after. 

In this exmaple, I migrated a volume with size of 10 GB and 60% used capacity. 

After the OpsCenter "Volume Migration" was finished, the volume size was also 10 GB but, 100% used capacity. 

Is this a normal expected behavior ? 

Is there a way to use zero page reclaim ? 

regards
Sven

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Sven Kirsten
Systems Engineer
SVA System Vertrieb Alexander GmbH
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Hello Sven

Yes it's expected. The Migration copies the 0 blocks as well. A ZPR will clean up the consecutive 0 pages. Might be good to check that HMO 114 is set to enable Asyncronous Page Reclamation with ESXi hosts using Vmware 6.5 and higher. 

I find triggering ZPR from CMRest is the easiest: 

https://knowledge.hitachivantara.com/Documents/Management_Software/Ops_Center/API_Configuration_Manager/10.2.x/REST_API_Reference_Guide/Volume_allocation/12_Reclaiming_zero_pages_of_a_DP_volume

Just be sure to delete the migration job after it's done, before you kick it off the ZPR else you might get an error as explained on the KB. 

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William Jansen van Nieuwenhuizen
Hitachi Vantara
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