Doug <[log in to unmask]> wrote:
 
>Does anyone know the Mean Time Between Failure (MTBF) for
>Eagle(7937) drives. I lost a system drive Feb 18 and lost another one
>last tuesday. A year ago I lost two on the same day. I have nine
>Eagles and three old 7933s that just keep shaking along without any
>problems. I don't if I should feel good or bad about being able
>to install and reinit the system with a single reference to the System
>Manager books. (It is a warm feeling to recover from a crash during
>production without losing any data).
 
I don't remember exactly (Mark Klien or Bruce Toback probably have a old
1985 book somewhere that has the exact MTBF), but it's in the tens of
thousands of hours (My memory says @30,000 hours).  In fact, this was
the hold up on their release, they had to wait 3 1/2 years before one
failed to know what the MTBF was and the new SCSI-2s were build 40 years
ago ;>.
 
Seriously, though, one of the problems I have is that mine *never* fail, so
I can't justify getting rid of them!  My experience with the 793# have been
very good over the last 10+ years (7933 @ 1984?), and I personally have had
more 7933/5s fail vs. the 7936/7s.
 
My experiences.  Sounds like you've had some bad luck.
 
Larry Boyd