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* [linux-lvm] lvmlockd: how to convert lock_type from sanlock to dlm?
@ 2017-11-20 10:35 Eric Ren
  2017-11-20 16:10 ` David Teigland
  0 siblings, 1 reply; 3+ messages in thread
From: Eric Ren @ 2017-11-20 10:35 UTC (permalink / raw)
  To: David Teigland; +Cc: LVM general discussion and development

Hello David,

On my testing cluster,  the lvmlockd was firstly used with sanlock and 
everything was OK.
After some play, I want to change the "sanlock" lock_type of a VG into 
"dlm" locktype.

With dlm_controld running, I tried as following, but still failed.

1.  Performed as the "Changing dlm cluster name" section of `man lvmlockd`:

     # dlm_tool ls             // no lockspace available
     # vgs
        Reading VG vg1 without a lock.
       VG  #PV #LV #SN Attr   VSize  VFree
       vg1   1   1   0 wz--ns 19.97g 18.72g
     # vgchange --lock-type none --force vg1       // the cmd comes from 
`man lvmlockd`
   Command does not accept option: --force.

2. Tried with 'global/locking_type=0':

# vgchange --config 'global/locking_type=0' --lock-type dlm vg1
   WARNING: Locking disabled. Be careful! This could corrupt your metadata.
   ERROR: configuration setting use_lvmlockd cannot be used with 
clustered locking_type 3.

The error message is strange because the locking_type=0 in the command 
line and locking_type=1
in lvm.conf.

Not sure if it's a real problem or am doing something wrong?


^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2017-11-21  4:11 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2017-11-20 10:35 [linux-lvm] lvmlockd: how to convert lock_type from sanlock to dlm? Eric Ren
2017-11-20 16:10 ` David Teigland
2017-11-21  4:11   ` Eric Ren

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