On Mon, 14 Sep 1998 12:53:05 -0700  Matt Thomas wrote:

> At 11:14 AM 9/14/98 , Dave McGuire wrote:
>
> >  If the machine goes down, stuff in the rc scripts checks for stale data in
> >that chunk of RAM...if there is some, it flushes it out to where it's supposed
> >to be.
> 
> Actually, fsck took care of it under ULTRIX.  It would apply the changes from
> Prestoserve NVRAM before actually trying to verify the disk structure.

As Jonathan says in a later message, it's handled at the driver
level.  When booting a DECstation into single-user mode that has dirty
Prestoserve buffers you'll see messages like

	presto: flushing dirty buffers

(or similar, this is from memory and the messages aren't stored in the
syserr file) before you hit the hash prompt.

Simon.