Re: Software raid0 will crash the file-system, when each disk is 5TB

Andreas Dilger
2007-05-16T14:05:08Z

On May 16, 2007 11:09 +1200, Jeff Zheng wrote:
> We are using two 3ware disk array controllers, each of them is connected
> 8 750GB harddrives. And we build a software raid0 on top of that. The
> total capacity is 5.5TB+5.5TB=11TB
>
> We use jfs as the file-system, we have a test application that write
> data continuously to the disks. After writing 52 10GB files, jfs
> crashed. And we are not able to recover it, fsck doesn't recognise it
> anymore.
> We then tried xfs, same application, lasted a little longer, but gives
> kernel crash later.

Check if your kernel has CONFIG_LBD enabled.

The kernel doesn't check if the block layer can actually write to
a block device > 2TB.

Cheers, Andreas
--
Andreas Dilger
Principal Software Engineer
Cluster File Systems, Inc.