It's not outdated but it's rarely necessary because:- the HostedEngine volume must
be dedicated for the HE VM. Setting enough space for the bricks is enough - for example
physical disk is 100GB, Thinpool is 100GB, thin LV 84GB (16GB should be put aside for the
metadata). In such configuration, you can't go out of space.I/O overhead can be
minimized by setting the full stripe size (and the thinpool chunk size) between 1MiB and
2MiB (preferably in the lower end).
One big advantage of the thinpool-based bricks is that you can create snapshots of the
volume. Usually I shut down the engine, snapshot the volume and then power up and do the
necessary actions (for example Engine upgrade).
Best Regards,Strahil Nikolov
On Sun, Sep 18, 2022 at 22:50, Jonas<jonas(a)rabe.ch> wrote:
https://access.redhat.com/documentation/en-us/red_hat_hyperconverged_infr...
The logical volumes that comprise the engine gluster volume must be
thick provisioned. This protects the Hosted Engine from out of space conditions,
disruptive volume configuration changes, I/O overhead, and migration activity.
Or is that extremely dated information?
Am 18. September 2022 21:08:45 MESZ schrieb Strahil Nikolov via Users
<users(a)ovirt.org>:
Can you share the RH recommendation to use Thick LV ?
Best Regards,Strahil Nikolov
I don't have that anymore, but I assume that gluster_infra_lv_logicalvols requires
a thin pool:
https://github.com/gluster/gluster-ansible-infra/blob/master/roles/backen...
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