[Ocfs2-users] How to fsck.ocfs2

[Sunil Mushran]

Unsure why that error does occurs when run without -f and not
when run with -f. I will need to see a o2image of the volume to
analyse.

fsck makes use of available memory. The timing depends on the
size of the volume, number of objects in the fs and available
memory.

But we do have a bug in 1.4.4 that reproduces under certain
circumstances. It has been fixed post 1.4.4.

http://oss.oracle.com/git/?p=ocfs2-tools.git;a=commitdiff;h=b987ee22a1b47b9a1e52846a49a5af38f693c7d5


On 02/18/2011 09:45 AM, Werner Flamme wrote:
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> Sunil,
>
> with "-fn" it runs. :-) What does the error in my last posting want to
> tell me?
>
> Unfortunately, there is no fsck. 1.4.4 for SLES 11 SP 1.
>
> I will tell you about found errors and ask if they are repairable with
> 1.4.3, otherwise my colleague has to run his version - he uses Oracle's
> Unbreakable Linux, I think it contains a newer version than mine. I do
> not know how long it will take, but I started it on another server since
> the 4 gig filesystem for /tmp went full on the first server after about
> 15 minutes...
>
> BTW, hom many RAM and tmp space is required (or recommended) for a fsck
> on a filesystem our size?
>
> Regards,
> Werner
>
> Sunil Mushran [18.02.2011 17:59]:
>> Run with -fn. It is non destructive. Also use the latest fsck. 1.4.4 I believe.
>>
>> On Feb 18, 2011, at 8:46 AM, Werner Flamme<werner.flamme at ufz.de>  wrote:
>>
>> Hi everyone,
>>
>> simple question: how can I execute a "fsck.ocfs2 /dev/sdf"?
>>
>> All I get is
>>
>> ---snip---
>> myhost:~ # fsck.ocfs2 /dev/sdf
>> fsck.ocfs2 1.4.3
>> Checking OCFS2 filesystem in /dev/sdf:
>>   Label:              SAP01
>>   UUID:               5969C8CABB854F8EA9C17B5B8DE48EC6
>>   Number of blocks:   183500800
>>   Block size:         4096
>>   Number of clusters: 183500800
>>   Cluster size:       4096
>>   Number of slots:    15
>>
>> fsck.ocfs2: extent_tree.c:435: ocfs2_new_path: Assertion
>> `root_el->l_tree_depth<  5' failed.
>> ---pins---
>>
>> My fsck.ocfs2 knows those options:
>> Usage: fsck.ocfs2 [ -fGnuvVy ] [ -b superblock block ]
>>                     [ -B block size ] [-r num] device
>>
>> Critical flags for emergency repair:
>> -n             Check but don't change the file system
>> -y             Answer 'yes' to all repair questions
>> -f             Force checking even if file system is clean
>> -F             Ignore cluster locking (dangerous!)
>> -r             restore backup superblock(dangerous!)
>>
>> Less critical flags:
>> -b superblock  Treat given block as the super block
>> -B blocksize   Force the given block size
>> -G             Ask to fix mismatched inode generations
>> -u             Access the device with buffering
>> -V             Output fsck.ocfs2's version
>> -v             Provide verbose debugging output
>>
>> Will a -f damage the file system?
>>
>> This error occurs since a colleague tried to set up an additional volume
>> for the cluster.
>>
>> Regards,
>> Werner
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