I understand why it's difficult to convince management to have confidence
in a product that you can only use half of.  I still think that Mod 20s are
the way to go.  They're proven and very flexible.

John Lee
Vaske Computer Solutions

At 10:37 AM 10/10/00 -0500, Shawn Duffy wrote:
>Steve,
>
>I recently looked at the 12H and heard similar stories of performance
problems.
>When I asked HP, I was told to use maximum number if drives (i.e 12- 9GB
instead
>of 6 -18GB) and only fill them 50%.   My problem is I have a hard time
>convincing management to buy 300GB when we only really need 150GB.
>
>Shawn Duffy
>Sr. Systems Engineer
>Provider HealthNet Services
>
>____________________Reply Separator____________________
>Subject:    Re: Mirroring, 12H Autoraid.... or other
>Author: =?iso-8859-1?q?Steve=20Belkacem?= <[log in to unmask]>
>Date:       10/10/00 4:16 PM
>
>Apologies if I misled here. I am basically looking at
>both options Mirroring and 12H.
>
>Mirroring is the system we currently have, and does
>not seem to work correctly.
>
>The 12H raid option is the sytem which we are
>currently looking towards and I need to find out if it
>is a good solution, or if the horror stores if slow
>performace and the ARM utility are an urban myth.
>
>Thanks
>
>Steve
>--- Larry Barnes <[log in to unmask]> wrote: >
>Question,  why use mirroring on an 12h disc array?
>> When we set up a new
>> system here we had a 12h fully loaded configured in.
>>  Within the first 2
>> months we had 2 drives fail.  The system slowed down
>> (considerable)
>> while it rebuilt the bad drive but the system never
>> went down.
>>
>> Steve Belkacem wrote:
>>
>> > Hi people,
>> >
>> > 1. We currently use mirroring on out production
>> > machines. The feeling is that it is not a very
>> good
>> > system due to every time a primary disc has failed
>> ,
>> > the switchover to the secondary drive has not
>> happened
>> > and therefore the software is a waste of time.
>> >
>> > I am , in a very open minded way, presuming that
>> this
>> > is due to the mirroring was setup incorrectly at
>> the
>> > time . Would this be a correct assuption ?
>> >
>> > Would any users of the system please give me their
>> > opinion on this.
>> >
>> > 2. 12H Autoraid.
>> > Again I'd like to hear other peoples thoughts on
>> this.
>> > >From being in a position where I was happy to
>> move to
>> > this, I keep hearing horror stories (not direct)
>> which
>> > is unsettling to say the least.
>> >
>> > 3. Any other solution for the resilance ?
>> >
>> > Many Thanks in Advance
>> >
>> > Steve
>> >
>> >
>>
>____________________________________________________________
>> > Do You Yahoo!?
>> > Get your free @yahoo.co.uk address at
>> http://mail.yahoo.co.uk
>> > or your free @yahoo.ie address at
>> http://mail.yahoo.ie
>>
>> --
>> Larry Barnes
>> Director of I.T.
>> Mitek Corp.
>> 602-438-4545 x1366
>> Phoenix, AZ 85040
>>
>> Check Us Out !
>> http://www.mitekcorp.com
>
>
>____________________________________________________________
>Do You Yahoo!?
>Get your free @yahoo.co.uk address at http://mail.yahoo.co.uk
>or your free @yahoo.ie address at http://mail.yahoo.ie
>
>