[DRBD-user] File corruption

Jeff Buck jeffb at umci.com
Fri Oct 14 18:47:41 CEST 2005

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.


Are you sure you're not running a kernel with the bio_clone bug? Is your
kernel version 2.6.11, 2.6.12 or something close? Your problems sound a
lot like the same corruption other have seen. The bug is in the kernel,
but you need something like drbd, lvm, or md to poke it for you.



On Fri, 2005-10-14 at 17:56 +0530, Amod Sutavane wrote:
> Hi All ,
> 
>        I am using DRBD+HA for last 2 months and configured for Mail
> Server. I have configured DRBD with meta-disk internal. This was
> running fine till last week. But from then randomly some files are
> getting corrupted/damaged. I need to re-create the files by removing
> to make it work. I am getting errors like "EXT3-fs error (device
> drbd(147,0)): read_block_bitmap: Cannot read block bitmap". My HDD
> space is 80GB and i am the partition that i am using to sync is of
> 71GB. I know that DRBD has 128MB reserve for meta-data and this could
> be one of the reasons of above problem. What will be the implication
> if i shrink the exsting file system now( i am having 40GB of data)??
> or any other solution to optimize the DRBD??
> 
> Thanks in Advanced ...
> 
> Amod Sutavane.
> 
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