Re: Multiple volumes on the same disk

[Gmail <b.s.mikhael@xxxxxxxxx>]

I’ve tried more than one volume on the same Zpool, but with separate ZFS share for every volume. I didn’t find any performance issues compared to XFS on LVM.

PS: ZFS by default stores the extended attributes in a hidden directory instead of extending the file inode size like what XFS do!

There is a problem in ZFS on Linux implementation which the function responsible for deleting the files, it deletes only the files and forgets to delete the hidden directory which stores the extended attributes, and there seem no interest from ZFS on Linux community to fix this bug, it’s filed since 2013.

There is an option to change this to write the extended attributes to the inode instead of a hidden directory.

# zfs set xattr=sa <POOL_NAME>

# zfs set acltype=posixacl <POOL_NAME>

— Bishoy

On Apr 17, 2016, at 6:45 PM, Lindsay Mathieson <lindsay.mathieson@xxxxxxxxx> wrote:

As per the subject - my underlying file system is ZFS RAID10. Is there
any problem with creating multiple volumes with brick on the same ZFS
pool? is there cooperation on reads/writes?

- Thinking of separating out the various groups (Dev, Support,
Testing, Office) into their own volumes.

But if it will be a performance problem, then I would just leave it.

thanks,

--
Lindsay
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