[linux-lvm] mirrored LV + cmirror problem

[Michael Eisenkölbl]

we have also several problems with 6 TB volumes.

kind regards

Lajkó Attila schrieb:
>
> The VTrak LUNs are 1 and 5GB. The PVs are on a 240 MB partition on 
> each luns , the LV size is 160 MB. It's just a test.
>
> Attila.
>
> On Feb 15, 2008, at 1:02 PM, Michael Eisenkölbl wrote:
>
>> how big are the LUNs?
>>
>> michael
>>
>> Lajkó Attila schrieb:
>>> Hello,
>>>
>>>
>>> I have a problem with clvmd an cmirror:
>>>
>>> We have a two nodes cluster (RHEL4.6). I created a mirrored LV on a 
>>> clustered volume group on 2 iscsi LUNS (VTrak M200i).
>>> When i disconnect one of the LUNs - simulating a storage problem -  
>>> the mirrored LV doesn't go to linear mode, the LVM commands (lvs, 
>>> lvconvert, etc.) get stuck and the GFS file system is not accessible 
>>> (on both nodes).
>>>
>>> What is see in /var/log/messages:
>>>
>>> Feb 15 12:29:26 el42 kernel: dm-cmirror: server_complete_resync_work 
>>> - Setting recovery_halted = 1
>>> Feb 15 12:29:26 el42 kernel: dm-cmirror: Log flush failure: -5 -EIO
>>> Feb 15 12:29:26 el42 last message repeated 4 times
>>> Feb 15 12:29:26 el42 kernel: dm-cmirror: Log flush failure: -5 -EIO
>>> Feb 15 12:29:26 el42 kernel: dm-cmirror: Recovery halted due to 
>>> error on ItlWCmkP
>>> Feb 15 12:29:26 el42 lvm[4929]: WARNING: 
>>> dev_open(/dev/mapper/mirrp3) called while suspended
>>> Feb 15 12:29:26 el42 kernel: dm-cmirror: LOG INFO:
>>> Feb 15 12:29:26 el42 kernel: dm-cmirror:   uuid: 
>>> LVM-zEHPYfjtLCL7yqQhsG2kcPzthyLbyBPd7xlok1gd7NHgXR3l2XaVQWEVItlWCmkP
>>> Feb 15 12:29:26 el42 kernel: dm-cmirror:   uuid_ref    : 1
>>> Feb 15 12:29:26 el42 kernel: dm-cmirror:   log type    : disk
>>> Feb 15 12:29:26 el42 kernel: dm-cmirror:  ?region_count: 320
>>> Feb 15 12:29:26 el42 kernel: dm-cmirror:  ?sync_count  : 320
>>> Feb 15 12:29:26 el42 kernel: dm-cmirror:  ?sync_search : 320
>>> Feb 15 12:29:26 el42 kernel: dm-cmirror:   in_sync     : YES
>>> Feb 15 12:29:26 el42 kernel: dm-cmirror:   suspended   : NO
>>> Feb 15 12:29:26 el42 kernel: dm-cmirror:   recovery_halted : YES
>>> Feb 15 12:29:26 el42 kernel: dm-cmirror:   server_id   : 2
>>> Feb 15 12:29:26 el42 kernel: dm-cmirror:   server_valid: YES
>>> Feb 15 12:29:26 el42 kernel: dm-cmirror: cluster_presuspend: 
>>> recovery halted on ItlWCmkP(1)
>>> Feb 15 12:29:26 el42 kernel: dm-cmirror: cluster_postsuspend
>>> Feb 15 12:29:26 el42 kernel: dm-cmirror: Telling everyone I'm 
>>> suspending (ItlWCmkP)
>>> Feb 15 12:29:26 el42 kernel: dm-cmirror: LRT_MASTER_LEAVING(13): 
>>> (ItlWCmkP)
>>> Feb 15 12:29:26 el42 kernel: dm-cmirror:   starter     : 2
>>> Feb 15 12:29:26 el42 kernel: dm-cmirror:   co-ordinator: 0
>>> Feb 15 12:29:26 el42 kernel: dm-cmirror:   node_count  : 0
>>> Feb 15 12:29:26 el42 kernel: dm-cmirror: LRT_MASTER_LEAVING(13): 
>>> (ItlWCmkP)
>>> Feb 15 12:29:26 el42 kernel: dm-cmirror:   starter     : 2
>>> Feb 15 12:29:26 el42 kernel: dm-cmirror:   co-ordinator: 0
>>> Feb 15 12:29:26 el42 kernel: dm-cmirror:   node_count  : 2
>>> Feb 15 12:29:26 el42 kernel: dm-cmirror: LRT_ELECTION(10): (ItlWCmkP)
>>> Feb 15 12:29:26 el42 kernel: dm-cmirror:   starter     : 2
>>> Feb 15 12:29:26 el42 kernel: dm-cmirror:   co-ordinator: 57005
>>> Feb 15 12:29:26 el42 kernel: dm-cmirror:   node_count  : 0
>>> Feb 15 12:29:26 el42 kernel: dm-cmirror: LRT_ELECTION(10): (ItlWCmkP)
>>> Feb 15 12:29:26 el42 kernel: dm-cmirror:   starter     : 2
>>> Feb 15 12:29:26 el42 lvm[4929]: WARNING: dev_open(/etc/lvm/lvm.conf) 
>>> called while suspended
>>> Feb 15 12:29:26 el42 kernel: dm-cmirror:   co-ordinator: 1
>>> Feb 15 12:29:26 el42 kernel: dm-cmirror:   node_count  : 2
>>> Feb 15 12:29:26 el42 kernel: dm-cmirror: LRT_SELECTION(11): (ItlWCmkP)
>>> Feb 15 12:29:26 el42 kernel: dm-cmirror:   starter     : 2
>>> Feb 15 12:29:27 el42 kernel: dm-cmirror:   co-ordinator: 1
>>> Feb 15 12:29:27 el42 kernel: dm-cmirror:   node_count  : 2
>>> Feb 15 12:29:27 el42 kernel: dm-cmirror: LRT_MASTER_ASSIGN(12): 
>>> (ItlWCmkP)
>>> Feb 15 12:29:27 el42 kernel: dm-cmirror:   starter     : 2
>>> Feb 15 12:29:27 el42 kernel: dm-cmirror:   co-ordinator: 1
>>> Feb 15 12:29:27 el42 lvm[4929]: Failed to remove faulty devices in 
>>> vgtest-lvtest
>>> Feb 15 12:29:27 el42 kernel: dm-cmirror:   node_count  : 1
>>> Feb 15 12:29:27 el42 kernel: dm-cmirror: Suspending now (ItlWCmkP)
>>> Feb 15 12:29:28 el42 lvm[4929]: No longer monitoring mirror device 
>>> vgtest-lvtest for events
>>>
>>> Regards,
>>> Attila Lajkó
>>>
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>>> https://www.redhat.com/mailman/listinfo/linux-lvm
>>> read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
>>
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>
>
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