I don't doubt you, Kevin.  I hear nothing but kudos for XP256 and EMC.  But
of interest and relevance to this community, how much does an XP256 cost?
My guess is that they are cost-prohibitive to many.  Again, I go back to
the Model 20 array as the preferred solution to those who don't have your
budget, and that's undoubtedly why we sell so many of them.  If money
weren't a factor, I'd recommend your solution to everyone.

John Lee
Vaske Computer Solutions

At 08:26 PM 10/10/00 -0600, Kevin Newman wrote:
>I for one have lived the horror story and I've never been more happy to
>spend (the company's) money to get off of the 12Hs.  If you have a low
>amount of I/O then the 12Hs might be for you.  In a heavy I/O
>environment, you wouldn't like to see just how slow your system can
>perform.
>
>No urban myth here.  We had serious performance problems.  We are
>running at a minimum of 4-5 times faster on the XP256 disc array and
>this is without any changes to memory or any other system component.
>Yes, you read that right 400% - 500% better!!!
>
>Kevin
>
>Steve Belkacem wrote:
>>
>> 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
>
>