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