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dodomo
Contributor
Contributor

unmap

we use  thick ( paravirtual vmdk ) on all vm's . when i delete vm then i run unmap command on esxi 5.5  . now i want to learn that if i move the vm with storage vmotion then i MUST run unmap command on esxi server for reclaim ?

we have esxi 5.5 and thin lun

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hussainbte
Expert
Expert

Yes you have to unmap at storage vMotion also.

check the below KB.

http://kb.vmware.com/kb/2057513

If you found my answers useful please consider marking them as Correct OR Helpful Regards, Hussain https://virtualcubes.wordpress.com/
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dodomo
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Contributor

If I do not run this command after storage vmotion, the storage space is high and then after a while I should buy disk for storage ?

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hussainbte
Expert
Expert

Yes.. but reclamation is one reason why thin provisioned LUNs are created.. this is a completely supported VMware procedure.

there is no reason why you should not do it..

Be care to do it proper chunks to avoid performance impact.

If you found my answers useful please consider marking them as Correct OR Helpful Regards, Hussain https://virtualcubes.wordpress.com/
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dodomo
Contributor
Contributor

now i will move a vm from datastore1 to datastore2 with storage vmotion then i must run unmap command on esxi 5.5 and storage. Right ? will I do this all the time with every storage vmotion ?

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hussainbte
Expert
Expert

Yes.. every-time you want to reclaim the space.

If you found my answers useful please consider marking them as Correct OR Helpful Regards, Hussain https://virtualcubes.wordpress.com/
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