On 07/27/2017 09:20 PM, Ulrich Windl wrote:
Hi!
I think it will work, because the cluster does not monitor the PVs or prtition
or LUNs. It just checks whether you can activate the LVs (i.e.: the VG). That's
what I know...
Regards,
Ulrich
lejeczek <pelj...@yahoo.co.uk> schrieb am 27.07.2017 um 15:05 in Nachricht
<636398a2-e8ea-644b-046b-ff12358de...@yahoo.co.uk>:
hi fellas
I realise this might be quite specialized topic, as this
regards hardware DAS(sas2) and LVM and cluster itself but
I'm hoping with some luck an expert peeps over here and I'll
get some or all the answers then.
question:
Can cluster manage two(or more) LVM resources which would be
on/in same single DAS storage and have these resources(eg.
one LVM runs on 1&2 the other LVM runs on 3&4) run on
different nodes(which naturally all connect to that single DAS)?
Yes, it works in production environment for users.
While, it could depend on your detailed scenarios. You should further
evaluation if you need protect lvm vg metadata, eg. resize your lv on
multiple node simultaneously. If so, to involve clvm or the coming
lvmlockd is necessary.
--Roger
Now, I guess this might be something many do already and
many will say: trivial. In which case a few firm "yes"
confirmations will mean - typical, just do it.
Or could it be something unusual and untested but
might/should work when done with care and special "preparation"?
I understand that lots depends on what/how harwdare+kernel
do things, but if possible(?) I'd leave it out for now and
ask only the cluster itself - do you do it?
many thanks.
L.
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