EXT3 errors on PE 1600SC

[Dale Blount]

On Mon, 2007-01-08 at 09:40 -0600, Patrick_Boyd at dell.com wrote:
> REC:log MedErr on pid[1] FcRty=0 ScsiRty=0 @1/8 12:58:19
> REC: MedErr on LD[1] BadLba=8659c0 @1/8 12:58:19
> 
> This would indicate a medium error. On Channel 1 Target 8. You might
> want to look at that drive.


> EXT3-fs error (device sda6) in start_transaction: Journal 
> has aborted
> 


Can anyone explain why a single bad disk causes *any* changes to what
ext3 sees?  I've seen this too on a Perc4e/DC and I'm confused as to why
it happens.

Thanks,

Dale