Is it possible to sync two volumes in S2D?

Question

Hi all,

I have a situation where a S2D Volume was created with double de size it needs. In order to reduce costs the manager wants to reduce replace the 2 disks of 4 TB for 2 disks of 2 TB, and reduce de volume, if possible.

I know that shrink a volume size is no possible. So I was thinking of creating a new volume with the right size sync the content between the old and the new one, and then keep only this new volume with right size.

Is this possible? If so, what would the steps to do it with no data loss?

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Answer 1

Hi，

Based on my knowledge, Storage Spaces doesn't support the notion of shrinking a Space that was created as a specific size (especially if it's set for fixed provisioning). And replace with 2 smaller disk is not the recommendation method.

If you really want to take the size of the storage space down, you will have to create a second, smaller space, copy your files into it, then delete the space that was too large.

Based on my knowledge, storage replica and dfs replication are not suitable in your scenario to sync data. For other build-in feature, I haven't find such one to do this.

And if you don't want to move data to the new volume by copying, maybe you could also consider try to backup all the data first and restore to another volume.

Please note, keep a backup for the data before you do anything in case of something wrong.

Best Regards,