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Re: VBR 9.5 - REFS

Posted: Jan 17, 2017 8:42 pm
by btmaus
foggy wrote:Glenn, have you reviewed the recommendation given in the thread above?
Thanks for the reply foggy. So it looks like the below is what we will need to do when setting up a new 2016+ReFS repository?
tsightler wrote: have some temporary place to copy off all of their backups, reformat, recreate the repo so that it can be recognized as ReFS, copy all the backups back to new repo, rescan and remap existing backups.

Re: VBR 9.5 - REFS

Posted: Jan 18, 2017 11:23 am
by v.Eremin
Correct.

Re: VBR 9.5 - REFS

Posted: Jan 18, 2017 11:25 am
by foggy
Don't forget to perform full backup after that to enable new capabilities.

Re: VBR 9.5 - REFS

Posted: Jan 29, 2017 1:15 am
by WRS2200
Thanks for the post. This was very helpful.

Re: VBR 9.5 - REFS

Posted: Feb 01, 2017 12:39 am
by btmaus
I have a "best practce" question when adding a new 2016 ReFS Windows Repository to Veeam.

Which of these options should I enable when presented with the Storage Compatibility Settigs:

Align backup file data blocks
Decompress backup data blocks before storing
Use per-VM backup files

Thanks!

Re: VBR 9.5 - REFS

Posted: Feb 01, 2017 9:33 pm
by Gostev
You will find that the first one is selected and disabled when you target ReFS volume, so you can't touch that one anyway ;)

As far as the other two - there is no sense to decompress when going to ReFS, and per-VM is not ReFS specific setting - so use general considerations there (per-VM will give you a better performance at the cost of some extra disk space consumption, and is always a good idea to have enabled beyond a few hundreds of VMs per job for scalability reasons).

Re: VBR 9.5 - REFS

Posted: Sep 11, 2017 9:46 am
by tntteam
Hi there,

That may already been asked, but I'm not able to find the information :(

Does refs delivers other advantages than full synthetics and data integrity ?

In my case, I'm using forever incremental, and I was wondering if I would gain any benefit, specially on "backup file merge" and "compact backup files" operations ?

Thanks

Re: VBR 9.5 - REFS

Posted: Sep 11, 2017 9:53 am
by antipolis
you will benefit from refs on any transform operations, this includes file merge and compaction

Re: VBR 9.5 - REFS

Posted: Sep 11, 2017 12:00 pm
by tntteam
Thanks for info :)

Do I need to make an active full or anything to activate? I just created my refs repo, and I'm moving data from ntfs right now.
Once done, I'll change the backup specification's repository, and I should be good.

I'll report here any changes in the file merge execution time on the backup tonight.

Re: VBR 9.5 - REFS

Posted: Sep 11, 2017 12:15 pm
by antipolis
you can either do an active full and your backup will be "block cloning aware" right away, or you can just activate weekly synthetics

did you make sure to format your refs volume(s) with 64k cluster size ?

Re: VBR 9.5 - REFS

Posted: Sep 11, 2017 12:43 pm
by tntteam
Yes!
Ok, that's not what I wished to hear, but I'll deal with it :)

Re: VBR 9.5 - REFS

Posted: Sep 11, 2017 12:46 pm
by antipolis
actually I think if you wait till the next backup compaction it will do the job as well, but I'm not 100% on this, maybe someone else can confirm

Re: VBR 9.5 - REFS

Posted: Jan 23, 2018 3:37 pm
by FrancWest
All,

what about Microsoft's support statement that reFS is not supported on iSCSI luns? Anyone experienced issues with this?

See here:

ReFS is supported with Storage Spaces, Storage Spaces Direct, and non-removable direct attached drives. ReFS is not supported with hardware virtualized storage such as SANs or RAID controllers in non-passthrough mode. USB drives are also not supported.

source: https://docs.microsoft.com/en-us/window ... s-overview

Franc.

Re: VBR 9.5 - REFS

Posted: Jan 23, 2018 4:22 pm
by foggy
It doesn't actually say iSCSI is not supported.

Re: VBR 9.5 - REFS

Posted: Jan 23, 2018 4:25 pm
by FrancWest
Not? How do you read it then?