Use per-machine backup files

[davidwatts71]

Does anyone know if a Quest DR6300 would benefit with this option on ?

Thanks
David

[soncscy]

Hey David,

PerVM versus PerBackup is mostly about where the space savings from Deduplication and Compression happens; using the software defined in-flight/storage compression or using your backup storage native, at least as I see it. PerVM backups gives you independent chains which I like because the risk of corruption is spread out over many backups, not just one. I push XFS with reflinks in my client environments, so we benefit from the space savings there, and it just seems safer.

Quest's own documents suggest use PerVM: https://support.quest.com/download/downloads?id=6079242

So I guess go with that. I don't like that your only options are SMB(Cifs)/NFS, but I guess it's what you get.

I say go for PerVM, it will make things much easier. It looks like the Quest box has some background dedup (they advise don't use Align Data Blocks because it impacts dedup performance), so you will get better returns this way I would imagine.

[davidwatts71]

Hi Soncscy

Thanks a lot for your detailed answer. I will try PerVM. I did have "Align Data Blocks" switched on. I have now disabled it.

Cheers
David