After a reboot, a SLES 12.3 box doesn't recognizes a few disks (that are actually behind HW raid).
What could the issue be?
If I "head /dev/sdb | strings | head" the problematic disks, I can see data on them, ok.
But "pvscan" doesn't recognizes it.
SERVER:~ # pvck /dev/sdb Device /dev/sdb not found (or ignored by filtering). SERVER:~ # SERVER:~ # grep ' filter' /etc/lvm/lvm.conf filter = [ "r|/dev/.*/by-path/.*|", "r|/dev/.*/by-id/.*|", "r|/dev/fd.*|", "r|/dev/cdrom|", "a|/dev/sd.*[1-9]|", "a|/dev/vda[1-9]|", "a|/dev/mapper/.*|", "a|/dev/dm-*|" , "r|.*|" ] SERVER:~ #
Strangely, the OS recognizes sda, which holds the OS itself.
But it doesn't recognizes the sdb/sdc/etc (holding the data) as PV.
UPDATE on 2018 Dec 11: all the disks: sda (raid1), sdb(raid5), sdc(raid5), sdd(raid1) are on HW RAID. "zypper up" says nothing to update.