[ClusterLabs] ocf:heartbeat:LVM or /etc/lvm/lvm.conf settings question

[emmanuel segura]

the next time share your log.

2016-08-11 20:43 GMT+02:00 Darren Kinley <dkinley at mdacorporation.com>:
> In case anyone is reading this thread.
>
> I found a Red Hat document that mentioned using an lvm_conf command to change
> lvm.conf settings and disabled lvmetad.  I also found a message warning to disable
> lvmetad in /var/log/messages.
>
> I had disabled write_cache_state=0 but it appears that use_lvmetad=0 and disabling
> the service were also needed. You also need to rebuild your initrd ram disk.
>
> Darren
>
> -----Original Message-----
> From: emmanuel segura [mailto:emi2fast at gmail.com]
> Sent: Wednesday, August 10, 2016 3:25 PM
> To: Cluster Labs - All topics related to open-source clustering welcomed <users at clusterlabs.org>
> Subject: Re: [ClusterLabs] ocf:heartbeat:LVM or /etc/lvm/lvm.conf settings question
>
> you described your problem, but didn't show any logs or cluster config.
>
> 2016-08-10 23:47 GMT+02:00 Darren Kinley <dkinley at mdacorporation.com>:
>> The default lvm.conf's filter includes /dev/drbdX
>>
>>     # By default we accept every block device except udev names, floppy and cdrom drives:
>>     filter = [ "r|/dev/.*/by-path/.*|", "r|/dev/.*/by-id/.*|",
>> "r|/dev/fd.*|", "r|/dev/cdrom|", "a/.*/" ]
>>
>> -----Original Message-----
>> From: emmanuel segura [mailto:emi2fast at gmail.com]
>> Sent: Wednesday, August 10, 2016 2:33 PM
>> To: Cluster Labs - All topics related to open-source clustering
>> welcomed <users at clusterlabs.org>
>> Subject: Re: [ClusterLabs] ocf:heartbeat:LVM or /etc/lvm/lvm.conf
>> settings question
>>
>> your lvm filter include the drbd devices /dev/drbdX ?
>>
>> 2016-08-10 21:38 GMT+02:00 Darren Kinley <dkinley at mdacorporation.com>:
>>> Hi,
>>>
>>> I have an LVM logical volume and used DRBD to replicate it to another
>>> server.
>>> The /dev/drbd0 has PV/VG/LVs which are mostly working.
>>> I have colocation and order constraints that bring up a VIP, promote
>>> DRBD and start LVM plus file systems.
>>>
>>> The problem arises when I take the active node offline.
>>> At that point the VIP and DRBD master move but the PV/VG are not
>>> scanned/activated, the file systems are not mounted and “crm status”
>>> reports an error for the ocf:heartbeat:LVM resource
>>>
>>> “Volume group [replicated] does not exist or contains an error!
>>> Using volume group(s) on command line.”
>>>
>>> At this point the /dev/drbd0 physical volume is not known to the
>>> server and the fix requires
>>>
>>> root# pvscan –cache /dev/drbd0
>>> root# crm resource cleanup grp-ars-lvm-fs
>>>
>>> Is there an ocf:heartbeat:LVM setting or /etc/lvm/lvm.conf settings
>>> to force the PV/VGs to come online?
>>> It is not clear whether the RA script “exclusive” or “tag” settings
>>> are needed or there is a corresponding lvm.conf setting.
>>>
>>> Is l”vm.conf write_cache_state = 0” recommended by the DRBD User
>>> Guide correct?
>>>
>>> Thanks,
>>> Darren
>>>
>>>
>>>
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>>
>>
>>
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>
>
>
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