Re: NetBSD 5 upgrade & SCSI issues

[Manuel Bouyer <bouyer%antioche.eu.org@localhost>]

On Mon, Apr 27, 2009 at 09:38:22PM +0000, John Klos wrote:
> >>sd0(esiop1:0:0:0):  Check Condition on CDB: 0x35 00 00 00 00 00 00 00 00 
> >>00
> >>    SENSE KEY:  Media Error
> >>     ASC/ASCQ:  Data Synchronization Mark Error
> >
> >This is a SCSI_SYNCHRONIZE_CACHE_10 command.
> >Did you enable WAPBL after upgrade ?
> >I think netbsd-4 didn't use this command exept maybe on shutdown, while
> >WAPBL use it for its journal ...
> 
> I see. Yes, I enabled WAPBL, and I was wondering if that had something to 
> do with it.
> 
> What's recommended in this case? My guess is that the hardware mirroring 
> device flushes immediately on write, so this should be safe to ignore. 

But it may not flush the underlying disk's cache, so it may still be a
problem.

-- 
Manuel Bouyer <bouyer%antioche.eu.org@localhost>
     NetBSD: 26 ans d'experience feront toujours la difference
--