[ovirt-users] Re: Restoring hosted engine from backup fails on new FC storage domain creation
On Wednesday, 28 April 2021 13:02:01 CEST Juhani Rautiainen wrote:
Hi!
I know something about multipathing and LVM but I'm not quite familiar
how this is supposed to look. I compared 4.4 node to 4.3 node and it
looks totally different from lvm perpective. I'm not sure if this is
because of changes
there are no change in disk layout between 4.3 and 4.4 AFAIK
or problems in this node. Multipath shows same
disks but for example pvdisplay on 4.4 node shows only local disk PV:
showing all PVs means you don't have configured lvm filter on the hosts, you
should run
vdsm-tool config-lvm-filter
on each host, see [1] for more details.
Not showing any PVs on may be caused by installed lvm filter (you can run it
again with --config 'devices {filter=["a|.*|"]}' to find out) or because
there
are no PVs created yet, which is more likely as in previous log there was an
error during pvcreate.
[1] https://blogs.ovirt.org/2017/12/lvm-configuration-the-easy-way/
[root@ovirt02 tmp]# pvdisplay
--- Physical volume ---
PV Name /dev/sda3
VG Name onn
On old node:
[root@ovirt01 ~]# pvdisplay
--- Physical volume ---
PV Name /dev/mapper/36000d31005b4f600000000000000001a
--- Physical volume ---
PV Name /dev/mapper/36000d31005b4f600000000000000001d
--- Physical volume ---
PV Name /dev/mapper/360002ac00000000000000261000057b9
--- Physical volume ---
PV Name /dev/mapper/3600508b1001cce98eb718bd780426566p3
VG Name onn_ovirt01
This worries me as I don't have an idea how to fix this.
Thanks,
Juhani
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