[rescue] netbsd error

[George Adkins]

On Wednesday 13 February 2002 07:51 pm, you wrote:
> I'm getting errors under heavy disk usage on my SS2 running NetBSD 1.5.1
> on a 1 gig drive.
>
> Feb 13 19:52:14 border /netbsd: sd0(esp0:3:0):  Check Condition on CDB:
> 0x08 1a 70 f0 10 00 Feb 13 19:52:15 border /netbsd:     SENSE KEY:  Media
> Error
<snip>
>
> Is there anyway to fix this other than buying yet another drive and
> delaying the project further?

Sure, you could use the scsi control commands to force sparing of the 
affected blocks, which if the automatic sector sparing has already used the 
spares for that track would cause the whole track to be spared, which if the 
spare track for that zone has already been used will cause the entire 
cylinder to be spared, yadda, yadda, yadda...

How important is the project?  I mean once those drives start with that 
stuff, it only gets worse.  About nine months ago, I had a production machine 
that started throwing one of those every month or so, then it one or two 
every month, then the machine would lock up and have to be powercycled 
occasionally, and the bad blocks reassigned, then it was happening once every 
week or two, and then within the space of the last month, the machine just 
became unbootable, even hammering on it from a VT...

Good thing I had tape backup, and the machine wasn't too important (NAT box 
at work, so the secretaries can surf the web...)

If it's important, replace the drive early.

George