ReFS vs XFS Repo's

[badabing888]

Hi All,

Has anyone run both of these in their environment?
Curious to see how they are performing obviously this is dependent on underlying storage / disk to a point.

I'm just seeing high read latency on the ReFS Repo's (Which is unusual when it in general is more write intensive) vs XFS repo's for similar backup throughput / volume / underlying storage has anyone seen anything similar? Not an issue more an observation at this point.

[Mildur]

I don‘t have any values to compare both filesystems.
I have a customer with 20 TB FullBackup Size and Backups are running perfectly fine on XFS.

We are going forward with xfs from now on. Linux backup Repos will get the interesting immutable feature with veeam v11 too.

[ober72]

We are using both. So far XFS is working well.
Just one thing to point out although it might be obvious, don't mix in the same scaleout XFS and REFS repositories. There are many reasons but different block size for one is an important one.

cheers

[mikeman91095]

Hey guys, was curious if anyone could give some info on XFS vs ReFS. I understand the Windows vs Linux, but as a file system for a repository how do they compare?

[Natalia Lupacheva]

Hi @mikeman91095,

Moved your post to the existing thread with ReFS and XFS comparison.
Please take a look at the discussion above.

Thanks!

[mikeman91095]

One of the major pain points for us with ReFS repos is the inability to move synth fulls that are fast cloned, since this would then cause the files to inflate. From my research, based on the design of both XFS and ReFS this is just how the file systems are designed to function. Digging through the documentation for the xfs_copy command I ran into a flag, specifically the -d flag, that looks like it might combat this issue (https://linux.die.net/man/8/xfs_copy). Can anyone confirm if I could move backup files that include synth fules to a new volume formatted as XFS and according to the Veeam documentation for use as a Veeam repo by copying with the xfs_copy command and the -d flag?

[mikeman91095]

We are using both. So far XFS is working well.
Just one thing to point out although it might be obvious, don't mix in the same scaleout XFS and REFS repositories. There are many reasons but different block size for one is an important one.

cheers

How's your experience maintaing both of these? I had some big issues with fragmentation of ReFS repositories causing health checks to take FOREVER.

[badabing888]

We have been running both for awhile, anything new has been XFS. So far i prefer XFS seems to be less resource hungry doesnt need as much memory etc