David,
First you'll need this recent fix:
https://sourceware.org/git/?p=lvm2.git;a=commitdiff;h=f611b68f3c02b9af2521d7ea61061af3709fe87c
--force was broken at some point, and the option is now --lockopt force.
Thanks!
To change between lock types, you are supposed to be able to change to a
local VG, then from local to the other lock type. The man page sections:
changing a lockd VG to a local VG
changing a local VG to a lockd VG
But it looks like a fix is needed in those instructions. I believe
"vgchange --lock-type none <vgname>" needs to include --lockopt force.
If you could verify this for me, I'll update the man page.
It works! I did as the following:
"""
sle15-c1-n1:~ # vgs
Reading VG vg1 without a lock.
VG #PV #LV #SN Attr VSize VFree
vg1 1 1 0 wz--ns 19.97g 18.72g
sle15-c1-n1:~ # vgchange --lock-type none vg1
Cannot access VG vg1 due to failed lock.
sle15-c1-n1:~ # vgchange --lock-type none --lockopt force vg1
Forcibly change VG lock type to none? [y/n]: y
Volume group "vg1" successfully changed
sle15-c1-n1:~ # vgchange --lock-type dlm vg1
Volume group "vg1" successfully changed
sle15-c1-n1:~ # vgs
Reading VG vg1 without a lock.
VG #PV #LV #SN Attr VSize VFree
vg1 1 1 0 wz--ns 19.97g 18.72g
sle15-c1-n1:~ # vgs -o+lock_type
Reading VG vg1 without a lock.
VG #PV #LV #SN Attr VSize VFree LockType
vg1 1 1 0 wz--ns 19.97g 18.72g dlm
sle15-c1-n1:~ # vgchange --lockstart
VG vg1 starting dlm lockspace
Starting locking. Waiting until locks are ready...
sle15-c1-n1:~ # lvs
LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync
Convert
lv1 vg1 -wi------- 1.00g
"""
Thanks,
Eric
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