Re: For the Technical guys

I just noticed that the part number changed from 01LU575 to 01LU573 for the
283 GB 15K SAS drives - going from Power 8 to Power 9. But the actual
drives appear to be identical.



On Thu, Apr 26, 2018 at 6:51 AM, DrFranken <midrange@xxxxxxxxxxxx> wrote:

Caution!

The use of part numbers for Power Systems configuration is not a great
idea.

IBM Uses feature codes because the underlying part number can AND DOES
change. This may include sourcing parts from multiple suppliers (they
ALWAYS do this) as well as changes in the part over time. That said even
the feature code can appear to change for the same drive or I/O adapter but
in those cases the change typically indicates a different mounting
configuration. (e.g. Sff-1 Sff-2 or Sff-3 for disk units.)

While it's probable that a part number search will yield results it's also
very probable that it will miss valid results.

A classic was the old 4GB SCSI disk unit. Those things came in more part
numbers than you could shake a stick at. They physically changed from 1.6"
to 1" drives, changed the style of the case completely, embodied maybe a
dozen manufacturers and yet if you had a 6607 it worked! This was also a
good example of finding the same disk unit with different mounting. These
things went into model 400s with NO mounting into 170s and 620s and 720s
with a blue handled sled and into older 3xx and 5xx models inside a
complete enclosure that even had another board in it!


- Larry "DrFranken" Bolhuis

www.Frankeni.com
www.iDevCloud.com - Personal Development IBM i timeshare service.
www.iInTheCloud.com - Commercial IBM i Cloud Hosting.

On 4/26/2018 1:48 AM, Gad Miron wrote:

Thanks Larry, Rob, Diego, Jim, Ed

Point taken, I'll ask the BPs.
(this is 11 such disks in a Raid5 configuration, perhaps not that bad?)

Googling this drives I only found them (Part No. 00E9953 ) configurable
for
a P8 machines.
https://www.ibm.com/support/knowledgecenter/en/POWER8/p8ecs/
p8ecs_drive_parts.htm


Do you have the part no. for a Power 9 machine?

Gad

date: Wed, 25 Apr 2018 09:04:47 -0400

from: DrFranken <midrange@xxxxxxxxxxxx>
subject: Re: For the Technical guys

They are in the list but don't buy 'em! Even for test and dev those
things are slow. At least get the 15K Drives and a few more of them. For
test and dev you may find that the read intensive SSDs will work for you
also yilding vast leaps in performance at reasonable cost.

- Larry "DrFranken" Bolhuis

www.Frankeni.com
www.iDevCloud.com - Personal Development IBM i timeshare service.
www.iInTheCloud.com - Commercial IBM i Cloud Hosting.

On 4/25/2018 8:58 AM, Gad Miron wrote:

Hi Techies.

Looking at (competing) quotes for a new S914 (P9) dev. machine:

one BP configures 1.1TB 10K RPM SAS SSF-3 disks
the other BP says these disks are not configurable for S914 IBM i

machines.

Who is correct?

TIA
Gad

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