At 02:46 PM 2003-12-04, Johnson, Tracy wrote:
>We're upgrading from a model 10 to a model 20
>Nike array.  (There's a glut of these, and they
>were REAL cheap.)
>
>I'm in the middle of deciding whether keep it
>in hardware RAID configuration or to switch to
>MPE/iX mirroring, since one can now do it on
>the System volume set.  (It wasn't when the
>system was first bought, so we stayed with the
>Nike hardware RAID.
Since when has it been possible to mirror the system volume set?

And even if possible, I would still much prefer hardware mirroring.


>There is the performance issue of keeping it
>Nike hardware RAID versus the safety of MPE
>Mirroring.

I believe hardware mirroring is safer AND cheaper AND better performing.

It's win, win, win  for hardware over software - even if you can mirror the
system volume set, which I don't believe is possible anyway.


>Has anyone switched from one to the other?

Not I, but should be straightforward - at worst a reload if you can't
simply insert same discs in appropriate slots.

>Any war stories?
>
>A side issue is that one can use the 2nd
>Fast and Wide card on the array when using
>MPE mirroring, but you can't when using
>Model 20 hardware RAID.

You CAN use a 2nd FWSCSI card with the mod20.

>Tracy Johnson
>MSI Schaevitz Sensors
>
>* To join/leave the list, search archives, change list settings, *
>* etc., please visit http://raven.utc.edu/archives/hp3000-l.html *

-------------------------------------------------------------------------------------------------
Gilles Schipper
GSA Inc.
HP System Administration Specialists
300 John Street, Box 87651   Thornhill, ON Canada L3T 7R4
Voice: 905.889.3000     Fax: 905.889.3001
email:  [log in to unmask]  web: http://www.gsainc.com
-------------------------------------------------------------------------------------------------

* To join/leave the list, search archives, change list settings, *
* etc., please visit http://raven.utc.edu/archives/hp3000-l.html *