My organization is looking to upgrade our JBOD scsi disk arrays to some
sort of high-availability array.  For the presentation, I'm required to
present how our shop compares to the "industry standard" as far as downtime.

I'm looking for feedback from other shops regarding what % your shop is
down for:
1) disk drive crash  (we're at 85% for past 1 1/2)
2) OS or System software failures (12%)
3) Application or programming lockups (~3%)

If you are already on a high-availability solution, I'd really appreciate
any feedback about % performance hits (or speed) from EMC, Nike, XP256,
etc...

Thanks mucho!!
Patrick Edwards
Little Rock, AR