[ovirt-users] Re: Number of data bricks per oVirt HCI host
Imagine you got a host with 60 Spinning Disks -> I would recommend you to split it to
10/12 disk groups and these groups will represent several bricks (6/5).
Keep in mind that when you start using many (some articles state hundreds , but no exact
number was given) bricks , you should consider brick multiplexing
(cluster.brick-multiplex).
So, you can use as many bricks you want , but each brick requires cpu time (separate
thread) , tcp port number and memory.
In my setup I use multiple bricks in order to spread the load via LACP over several small
(1GBE) NICs.
The only "limitation" is to have your data on separate hosts , so when you
create the volume it is extremely advisable that you follow this model:
hostA:/path/to/brick
hostB:/path/to/brick
hostC:/path/to/brick
hostA:/path/to/brick2
hostB:/path/to/brick2
hostC:/path/to/brick2
In JBOD mode, Red Hat support only 'replica 3' volumes - just to keep that in
mind.
From my perspective , JBOD is suitable for NVMEs/SSDs while spinning disks should be in a
raid of some type (maybe RAID10 for perf).
Best Regards,
Strahil Nikolov
В сряда, 14 октомври 2020 г., 06:34:17 Гринуич+3, C Williams
<cwilliams3320(a)gmail.com> написа:
Hello,
I am getting some questions from others on my team.
I have some hosts that could provide up to 6 JBOD disks for oVirt data (not arbiter)
bricks
Would this be workable / advisable ? I'm under the impression there should not be
more than 1 data brick per HCI host .
Please correct me if I'm wrong.
Thank You For Your Help !
_______________________________________________
Users mailing list -- users(a)ovirt.org
To unsubscribe send an email to users-leave(a)ovirt.org
Privacy Statement: https://www.ovirt.org/privacy-policy.html
oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/
List Archives:
https://lists.ovirt.org/archives/list/users@ovirt.org/message/OGZISNFLEG3...