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тАО06-07-2017 01:21 AM
тАО06-07-2017 01:21 AM
3PAR Space Reclamation - ESX UNMAP and zero detect
Morning Peers - we are going through an exercise to UNMAP (write zero) to unused datastore blocks within our Vcentre. From the 3PAR end, I can see the used storage reducing, but the reserved space does not decrease and when viewing the free space on the array I do not see this increase. Is there another housekeeping task, other than compactcpg, that I need to run to reduce the reserved space ?
Thanks,
Berd
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тАО06-07-2017 01:32 AM
тАО06-07-2017 01:32 AM
Re: 3PAR Space Reclamation - ESX UNMAP and zero detect
What is your ESX version, and how are you reclaiming the space?
yapkl
Note: The opinions & comments above are my personal opinions, not of Hewlett Packard Enterprise
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тАО06-07-2017 01:43 AM
тАО06-07-2017 01:43 AM
Re: 3PAR Space Reclamation - ESX UNMAP and zero detect
Hi there,
ESX 5.5
VMware admin is actually actioing reclaim from ESX CLI. When he does this I can see the used space reducing on the 3PAR, but reserved space does not reduce, see below.
cli% showvv -s DC13PAR01_MSP_VMFS04
---Adm--- ----------Snp----------- ------------Usr-------------
--(MB)--- ---(MB)---- -(% VSize)-- -----(MB)------ -(% VSize)-- ------(MB)------ -Capacity Efficiency-
Id Name Prov Type Rsvd Used Rsvd Used Used Wrn Lim Rsvd Used Used Wrn Lim Tot_Rsvd VSize Compaction Dedup
13 DC13PAR01_MSP_VMFS04 tpvv base 3584 2389 592000 1039 0.0 0 0 2408448 1448226 34.5 0 0 3004032 4194304 2.9 --
----------------------------------------------------------------------------------------------------------------------------------------
1 total 3584 2389 592000 1039 2408448 1448226 3004032 4194304 2.9 --
Around 1TB reduction in used space, but reserved space still up at 2.4TB appx ?
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тАО06-07-2017 05:29 PM
тАО06-07-2017 05:29 PM
Re: 3PAR Space Reclamation - ESX UNMAP and zero detect
Compact CPG should help you free up the space.
yapkl
Note: The opinions & comments above are my personal opinions, not of Hewlett Packard Enterprise
----------
If my post was useful, click on my KUDOS! thumb below! Thanks.