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FYI - 
You can get the mirrored bundle for the discounted price, but when it is 
installed, you can set it up for RAID instead.
 
This will give you much more DASD for the reduced price.
 


Brian <iserieslists@xxxxxxxxx> wrote:
Al,

The mirroring option will be ~25K more expensive. It would be much
more expensive except that we are taking advantage of the significant
discounts offered by IBM on their mirroring bundles. I only wish they
would add the 141GB drives as an option to the larger bundle that
includes an IOP, 2-2780 controllers, a 0595 drawer and 12 drives. They
have this larger bundle for the 35GB and 70GB drives but not the 141GB
drives. For the 141GB drives the bundle only includes 12 drives and a
2780 controller.

Kind regards,

Brian
.

On 8/18/05, Al Barsa wrote:
> 
> Mirroring is significantly more reliable, but IBM is scamming you if they
> tell you it's the same price for disk. You will use significantly more
> slots, bays, controllers and maintenance.
> 
> Al
> 
> Al Barsa, Jr.
> Barsa Consulting Group, LLC
> 
> 400>390
> 
> "i" comes before "p", "x" and "z"
> e gads
> 
> Our system's had more names than Elizabeth Taylor!
> 
> 914-251-1234
> 914-251-9406 fax
> 
> http://www.barsaconsulting.com
> http://www.taatool.com
> http://www.as400connection.com
> 
> 
> 
> 
> Brian
> > il.com> To
> Sent by: Midrange Systems Technical
> midrange-l-bounce Discussion
> s@xxxxxxxxxxxx 
> cc
> 
> 08/18/2005 10:09 Subject
> AM Performance of 2780 controller and
> 141GB drives
> 
> Please respond to
> Midrange Systems
> Technical
> Discussion
> > nge.com>
> 
> 
> 
> 
> 
> 
> Any experience with consolidating DASD on the new 141GB drives out there?
> 
> On the new box we are ordering it has been suggested that we move from
> a RAID environment to a mirrored environment. However, to be
> affordable, this would mean consolidating the data storage onto fewer
> drives. Being from the old school of "small drives and lots of arms",
> I am skeptical of the performance of this configuration.
> 
> The current configuration on our 730 consists of two RAID sets, one
> with 20 8GB 10K drives and the other with 16 17GB 10K drives. This
> gives ~400GB on 36 arms. The proposed configuration for the i5 520 is
> for mirroring at the IOP level using the fast 2780 controllers with a
> total of 16 141GB drives plus 2 35GB drives as mirrored load source in
> the CEC. This gives ~1TB of usable data storage.
> 
> Any opinions? Suggestions?
> 
> Kind regards,
> 
> Brian
> 
> --
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> 
> --
> This is the Midrange Systems Technical Discussion (MIDRANGE-L) mailing list
> To post a message email: MIDRANGE-L@xxxxxxxxxxxx
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