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Read only and corruption on disk rebuild-tree?

Featured Replies

Hello,

 

I am having a read-only / corruption problem on some of my disks. I ran reiserfsk on my disks and found that disk2 has some problems.

 

The log says this:

 

 

reiserfsck --check started at Sat Sep 28 09:36:24 2013

###########

Replaying journal: Done.

Reiserfs journal '/dev/md2' in blocks [18..8211]: 0 transactions replayed

Checking internal tree.. \/  2 (of  17//125 (of 161//  8 (of 170/bad_node: vpf-10350: The block (31522817) is used more than once in the tree.

the problem in the internal node occured (31522817), /126 (of 161-/165 (of 170\block 31851589: The level of the node (46006) is not correct, (1) expected

the problem in the internal node occured (31851589), /127 (of 161|/  1 (of 170/block 31857670: The level of the node (54558) is not correct, (1) expected

the problem in the internal node occured (31857670), /128 (of 161-/149 (of 170\block 32179813: The level of the node (31002) is not correct, (1) expected

the problem in the internal node occured (32179813), /130 (of 161\/149 (of 170|block 32524236: The level of the node (23849) is not correct, (1) expected

the problem in the internal node occured (32524236), /132 (of 161|/ 17 (of 170/block 12993087: The level of the node (2480) is not correct, (1) expected

the problem in the internal node occured/  8 (of  17|/ 50 (of 138-/ 28 (of 170-block 43287144: The level of the node (62124) is not correct, (1) expected

the problem in the internal node occurefinished

Comparing bitmaps..vpf-10640: The on-disk and the correct bitmaps differs.

Bad nodes were found, Semantic pass skipped

7 found corruptions can be fixed only when running with --rebuild-tree

 

Should I run rebuild-tree?

 

The instructions say to run rebuild-tree only after asking for expert advice.

 

I am running v 5.0 final pro and have 4 data disks, a parity and a cache.

 

 

  • Author

Thanks for the reply.

 

In what instances should you not run it?

 

The instructions clearly state that it should be used with caution and ask for advice first...

  • Author

Well after running with the -rebuild-tree switch, my disk 2 is showing that it is UNFORMATTED.

 

What can I do to recover data?

 

 

Did the reiserfsck give any messages while it was running suggesting that files were being reovered?

  • Author

looks like the first run did not complete.

 

I am running it again.

 

Is reiserfsk running on the server or client?

Is reiserfsk running on the server or client?

 

The server.

 

  • Author

Is reiserfsk running on the server or client?

 

The server.

 

I am using putty to access the server and closing the terminal interrupts reiserfsk....

 

I let it run all night and it was able to complete this time. Mounting was successful.

 

Cheers,

 

G.

Thanks for the reply.

 

In what instances should you not run it?

 

The instructions clearly state that it should be used with caution and ask for advice first...

 

If the device was not specified correctly. Many run reiserfsck on /dev/sda, for example. It's a sanity check before you totally screw the disk.

Thanks for the reply.

 

In what instances should you not run it?

 

The instructions clearly state that it should be used with caution and ask for advice first...

 

If the device was not specified correctly. Many run reiserfsck on /dev/sda, for example.  (a mistake, should be /dev/sda1 ) It's a sanity check before you totally screw the disk.

If you use reiserfsck on the raw drives you WILL cause the corruption.  Only use reiserfsck on the FIRST  PARTITION of the drives, or (much better) on the /dev/mdX devices (which unRAID ties to the first partitions on the disks)

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