Hi Timo,
that's a complex task, so if you wish to take the short way - just restore from
backup.
Otherwise you have 2 options:1. Reinstall the system with the same name (I
suppose you need the gluster's folders' backup) and then use gluster's
"reset-brick" if you have lost both OS and gluster disks. In case only OS was
lost , then gluster will connect with the rest of the cluster and heal anything
missing.2. Create a new system (new hostname actually) , then you need to add
it to the rest of the cluster (should be visible in gluster peer status). Then
you can use the gluster's 'replace brick' option to completely replace the
missing brick. Once the heal is over, you can check if oVirt has already
detected that the gluster is back to normal.Then you forcefully remove the old
machine and add the new one to the cluster.
Still, the above is more theory than exact guide -so do not hesitate to contact
both ovirt and gluster users' mailing lists in case of an issue.
Best Regards,Strahil Nikolov
В четвъртък, 21 ноември 2019 г., 17:01:51 ч. Гринуич+2, Timo Eissler
<[email protected]> написа:
Hello,
i can't find the documentation on howto recover from a single host OS disk
failure in a 3 node HCI cluster.
I already searched the ovirt, RHV and RHHI documentation but i can't find the
corresponding documentation.
So can anyone please give me some hints?
In our dev lab i have 3 servers with 2 disks each. sda for ovirt node and sdb
for gluster. Let's assume the disk sda of a single node is defunct and needs to
be replaced.
So i grab a new disk and reinstall ovirt node from PXE.
After the installation is finished i would like to reinstall the host from
ovirt admin portal, but that doesn't work because of an invalid fingerprint.
So how can i re-add that host to ovirt and gluster?
Kind regards,
Timo
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