[Ocfs2-users] OCFS2 mount problem at Linux reboot when device
names are non persistent.
Ricardo Fernandez
Ricardo.Fernandez at quanam.com
Mon Aug 27 09:47:20 PDT 2007
Hi people,
Thanks a lot for your answer!
It worked perfectly.
Best regards
Ricardo
-----Original Message-----
From: Sunil Mushran [mailto:Sunil.Mushran at oracle.com]
Sent: viernes, 24 de agosto de 2007 14:26
To: Randy Ramsdell
Cc: ocfs2-users at oss.oracle.com; Ricardo Fernandez
Subject: Re: [Ocfs2-users] OCFS2 mount problem at Linux reboot when
device names are non persistent.
While mount-by-uuid will work, mount-by-label should also work.
The one gotcha in the latter is that it expects the device to be
partitioned. As in, it will not mount-by-label if the device is /dev/sda
but will if the device is /dev/sda1 or sda2, etc.
Randy Ramsdell wrote:
> Ricardo Fernandez wrote:
>
>> Hi,
>>
>> I have the following problem when the servers accessing OCFS2 reboot:
>> as the Linux device names are non persistent, at reboot they usually
>> change, and then OCFS2 can't mount the device because it is expecting
>> a different device name as stated in the fstab file. (it is specified
>> in the format /dev/sdx as the instructions of the OCFS2 installation
>> manual say) If I change the device name to the "new" name, it works
>> fine. But this is not an acceptable solution, as each node should be
>> able to start in a fully automatic way. (without human intervention)
>>
>> I thought that the purpose of the disk LABEL that I added when
>> formatting the partition with OCFS2 was exactly this. (Am I right?) I
>> changed the fstab to use the LABEL option, and also try to mount it
>> from the command line using the LABEL option but it didn't work. Is
>> there any bug or known issue on this topic. I guess that if I glue
>> the device name with udev it will work, but I really would expect
>> OCF2 to solve this problem (because it is not a new one, and most of
>> the file systems I know can handle it)
>>
>> I would appreciate any help on this topic.
>>
>>
>> Thanks a lot
>> Ricardo
>>
>> I work with:
>>
>> RHEL 4
>> Local SCSI devices
>> External devices locates in an EVA8000 SAN, accessed through a fibre
channel bus. The OCFS2 file system is on one of these.
>>
>>
>> _______________________________________________
>> Ocfs2-users mailing list
>> Ocfs2-users at oss.oracle.com
>> http://oss.oracle.com/mailman/listinfo/ocfs2-users
>>
>>
> Do not use label use UUID name and _netdev_ fstab option.
> This is the UUID of a volume we have.
> /dev/disk/by-uuid/be12775a-ec1c-4ed7-a06b-f30a081a0603
>
> UUID's are unique and never change so they are ideal for what you are
> describing.
>
> Randy Ramsdell
>
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