Hello,
I would like to get some clarifications about the SHE environment upgrade
from 4.3.10 to 4.4.4.
Example scenario two hosts, both configured as HE hosts.
Interested both in iSCSI environment and in FC environment.
Going through here:
https://www.ovirt.org/documentation/upgrade_guide/#Upgrading_the_Manager_...
I have some doubts:
1) general one
between step 5 and 6 in section 4.4, actually the current 4.3 engine VM is
still running its OS (even if with ovirt-engine service stopped) and the VM
is running on the host you are going to scratch. So I think before
scratching the host and reinstalling it (step 6), it should be clarified
some step like
- shutdown engine VM
- shutdown host (is it ok in clean way or do I have to simply power off
it....?)
- install from scratch ovirt-ng node 4.4.4 on host
2) general one
why in external engine upgrade guide it is not specified to stop
ovirt-engine service before executing the backup, while in SHE it is
specified?
See steps on section 2.3 here:
https://www.ovirt.org/documentation/upgrade_guide/#Upgrading_from_4-3
expected different behaviour? Or any change needed in the doc?
3) SHE when iSCSI and FC
It is clear that one new domain is to be provided, intended for the new
engine 4.4 VM
It is clear that during install of the new host in 4.4 it is safe to have
shared LUNs masked / not accessible so that you don't risk to corrupt
current 4.3 data
It is not clear in my opinion what to do before running the step 8 of 4.4
section:
hosted-engine --deploy --restore-from-file=backup.bck
a) iSCSI
in general the configured iSCSI sessions are activated only when the host
is being activated. So for example when you put host into maintenance, they
are logged off.
In this stage of upgrade what is expected I execute before running the
hosted-engine --deploy command?
Will the command log in into iSCSI sessions during itsmexecution (because
of the restore) or do I have to create / log in the connections before
running it?
b) FC
what should I have on host before running the command? Only the current
LUns (+ the new one intended for new hosted engine VM) visible, so that I
see all of them as output of "multipath -l" command and then the
hosted-engine --deploy command would mount the related filesystems and so
on..?
Possibly it would be nice to have an example output of the
hosted-engine --deploy --restore-from-file=backup.bck
command inside the doc page.... to see its expected workflow
Thanks for reading,
Gianluca