[Ocfs2-users] 答复: 答复: remove locks? or copy the whole file?

[Aleks Clark]

At any rate, it appears that certain errors in an OCFS2 filesystem (it
seems like two blocks that point to eachother?) will cause fsck.ocfs2
to loop indefinitely. I think I'm gonna try out gluster for a while
(mostly because I have the opportunity, and also need to 'dumb things
down' to enable people at work besides me to be able to fix things),
is there anything you developer folk would like me to grab off of the
cluster before I glass it from orbit?

On Wed, Jul 4, 2012 at 6:23 PM, Guozhonghua <guozhonghua at h3c.com> wrote:
> 　　Sorry for delay.
>
> 　　I think that it take long time to execute the fsck.ocfs2, there are may be some reasons.
> 　　I think the fsck.ocfs2 tool is to check the disk and recovery some data of the disk, such as super block, inode, dentry and so on.
> 　　If the disk capacity is large, it may take more time to recovery.
>
> 　　If you update the kernel, the ocfs2 tool should be update at the same time, to 1.6.
> 　　The version 1.6 may be not compatible with 1.4, so some data may be lost after the update.
>
> 　　If you update the kernel, you may backup the data on the disk at first, and just using one node to mount the disk may be a good way.
>
> 　　The log records may means the recovery is doing with disk with different desc.
> 　　You can google some disk layout to see the ocfs2's disk about group desc of ocfs2.
>
> 　　repair_group_desc:363 | checking desc at 2225664; blkno 2225664 size
> 　　4032 bits 32256 free_bits 1535 chain 69 generation 1910514588
> 　　repair_group_desc:363 | checking desc at 10063872; blkno 10063872 size
> 　　4032 bits 32256 free_bits 1535 chain 69 generation 1910514588
>
> 　　I test the ocfs2 with the linux kernel 2.6.39, the problem is panic and fence.
> 　　So I compare the 3.2.x and 2.6.39, only the ocfs2 module, and find a lot of changes of the codes and I determine to upgrade the linux kernel version.
> 　　I am using ocfs2 tool 1.6.
>
> 　　Good luck
>
>
>
>
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-- 
Aleks Clark