[PVE-User] Cluster disaster

Michael Rasmussen mir at miras.org
Tue Nov 22 17:56:08 CET 2016

On Tue, 22 Nov 2016 16:35:08 +0000
Dhaussy Alexandre <ADhaussy at voyages-sncf.com> wrote:

> I don't know how, but i feel that every node i add to the cluster currently slows down LVM scan a little more...until it ends up interfering with cluster services at boot...
Maybe you need to tune the filter rules in /etc/lvm/lvm.conf.

My own rules as an inspiration:
    # Do not scan ZFS zvols (to avoid problems on ZFS zvols snapshots)
    global_filter = [ "r|/dev/zd.*|", "r|/dev/mapper/pve-.*|" ]

    # Only scan for volumes on local disk and on iSCSI target from Qnap NAS. Block scanning from all
    # other block devices.
    filter = [ "a|ata-OCZ-AGILITY3_OCZ-QMZN8K4967DA9NGO.*|", "a|scsi-36001405e38e9f02ddef9d4573db7a0d0|", "r|.*|" ]

Michael Rasmussen

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