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31 Posts
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3987
October 13th, 2019 23:00
Free Space reclaim
Hi
SC3020.
I have a volume that is 85% full.
I have dropped all the VMDK from vcenter, the datastore hosted by this volume is now almost empty, but the volume is still shown as 85%.
Is there a way to "shrink" it?
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Origin3k
4 Operator
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2.3K Posts
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October 14th, 2019 07:00
Yes,
if youre using VMFS5.x on ESX 6.x you have to run the following command:
esxcli storage vmfs unmap -l YOURDATASTORENAME -n 2048
and watch the charting tab in DSM for that volume. You need to press the refresh button after the command finished a couple of time otherwise DSM doesnt reflect the latest changes. If you have snapshots around it can take some time to get your space back.
Please take a look to https://kb.vmware.com/s/article/2057513
Regards,
Joerg
chenchen
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31 Posts
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October 14th, 2019 14:00
Hi
thanks.
I am using VMFS5.6 over esxi 5.5.
In case i am doing this command (acutally i am affraid to run the unmap command in the production...) , doe's the SC will use this space?
Once again: the ESXdatastore shows me 85% free, while the SC DSM still show me 90% active (both physical and virtual)
If i am no running this command on ESX, Why the SC doesn't re-use the space for future writes?
Dheep
1 Message
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December 4th, 2020 05:00
Hi .. I have a very similar issue in ovirt ... do you have any successful solution to vmware or ovirt. Thanks Dheep
Origin3k
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2.3K Posts
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December 5th, 2020 01:00
The posted solution from above works fine for VMware.
If you have a different setup ask your vender about "scsi unmap".
Regards,
Joerg