LV is already locked with incompatible mode

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Environment

SUSE Linux Enterprise Server 15
SUSE Linux Enterprise High Availability Extension

Situation

When trying to modify Logical Volume or resizing it for example, the system print the following error:

LV is already locked with incompatible mode

The Volume Group is being managed by cluster software "pacemaker" and has the following resource definition:

primitive vg-data LVM-activate \
        params vgname=vg-data vg_access_mode=lvmlockd activation_mode=shared

And the Logical Volume have the following resource definition:

primitive lv01 Filesystem \
	params device="/dev/vg-data/lv01" directory="/my-data" fstype=ext4

Resolution

To fix the problem the right activation_mode should be used based on the LV's filesystem.

In case the FS is xfs or ext4 activation_mode should be exclusive
In case gfs2 and ocfs2 activation_mode should be shared

Note: default value is exclusive. For more information check: crm ra info LVM-activate

Cause

Wrong activateion_mode used in LVM-activate resource definition.

Additional Information

For more information check the HAE Administration Guide:

SLE HA 15 SP1 - Administration Guide

See also :
Cluster Shared LVM limitation

Disclaimer

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