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eric
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Replication Job changes Thin disk to Thick disks

Post by eric » Feb 07, 2010 3:46 pm

Hello,

Are they any plans to support Thin to Thin replication? Right now Thin disks are converted to Thick.

~Eric

Vitaliy S.
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Re: Replication Job changes Thin disk to Thick disks

Post by Vitaliy S. » Feb 07, 2010 4:50 pm

Hello Eric,

Yes, you're correct, right now thin disks are replicated as thick, and we do have plans to support thin disk replication in our next release.

Thank you!

withanh
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Re: Replication Job changes Thin disk to Thick disks

Post by withanh » Feb 08, 2010 2:18 pm

Vitaliy, will you be implementing this with VM Copy job as well? We will probably be doing VM Copy for our weekly offsite and when I did a couple of proof of concept jobs this weekend I noticed they are forced thick, not thin like the source.

Thanks!

h
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Gostev
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Re: Replication Job changes Thin disk to Thick disks

Post by Gostev » Feb 08, 2010 4:26 pm

Darhl, thin provisioning is VMFS-specific feature, and such disks simply cannot be stored in thin form to "regular" file systems like NTFS or ext3, which are unaware about thin provisioning.

One thing that comes to my mind is converting thin-provisioned disks to sparse disks on the fly... but this would cause issues at restore (how do you turn sparse disk back into thin-provisioned)?

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Re: Replication Job changes Thin disk to Thick disks

Post by withanh » Feb 08, 2010 4:41 pm

Ah, I did not understand that thin-provisioning is VMFS specific. That's good to know. It won't really affect anything, other than making sure I have enough disk space to store the vm-copy jobs.

Thanks!
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