[ovirt-users] Re: Arbiter brick disk performance
Thank you very much Strahil, very helpful. As always. So I would equip the
3rd server and alocate one small ( 120 - 240gb) consumer grade ssd for each
of the gluster volume, and at volume creation, to specify the small ssds as
the 3rd brick.
Do it make sense ?
Thank you !
On Wed, Apr 24, 2019, 18:10 Strahil <hunter86_bg(a)yahoo.com> wrote:
I think 2 small ssds (raid 1 mdadm) can do the job better as ssds
have
lower latencies .You can use them both for OS (minimum needed is 60 GB) and
the rest will be plenty for an arbiter.
By the way, if you plan using gluster snapshots - use thin LVM for the
brick.
Best Regards,
Strahil Nikolov
On Apr 24, 2019 16:20, Leo David <leoalex(a)gmail.com> wrote:
Hello Everyone,
I need to look into adding some enterprise grade sas disks ( both ssd
and spinning ), and since the prices are not too low, I would like to
benefit of replica 3 arbitrated.
Therefore, I intend to buy some smaller disks for use them as arbiter
brick.
My question is, what performance ( regarding iops, througput ) the
arbiter disks need to be. Should they be at least the same as the real data
disks ?
Knowing that they only keep metadata, I am thinking that will not be so
much pressure on the arbiters.
Any thoughts?
Thank you !
--
Best regards, Leo David
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