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Larry,

Are you stating that the embedded Power8 DASD controller is better(faster) then a 5913?
And it can drive not only CEC DASD but also XP24S (5887)
This is a BIG first for i5 / Power.

Paul

-----Original Message-----
From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of DrFranken
Sent: Monday, April 28, 2014 4:56 PM
To: Midrange Systems Technical Discussion
Subject: Re: Power8 PCI slots

7.2GB effective Cache.
Big power this time.
18 Internal Drive bays plus 8 dedicated SSD slots (in dual socket only) Can drive an XP24S (5887) too.

- Larry "DrFranken" Bolhuis

www.frankeni.com
www.iDevCloud.com
www.iInTheCloud.com

On 4/28/2014 4:15 PM, Steinmetz, Paul wrote:

Larry,

Do we know the specs on the Power8 base Raid controller?
Is it limited as in the past (P5, P6, P7) or have they given it some sizable cache?

Paul



-----Original Message-----
From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of
DrFranken
Sent: Monday, April 28, 2014 3:43 PM
To: Midrange Systems Technical Discussion
Subject: Re: Power8 PCI slots

You would need a machine with two processor modules installed to use all the slots. With just one module you get a little over half the slots.



- Larry "DrFranken" Bolhuis

www.frankeni.com
www.iDevCloud.com
www.iInTheCloud.com

On 4/28/2014 3:10 PM, Steinmetz, Paul wrote:

This may a bit early and maybe pre-mature.
Now that the Power8 PCI slots are again "hot swappable" (Power 5 was, Power 6 and Power7 not).
Current Power7 is configured with 2 loops, (4 5913) each 5913 pair is split in one of two 5877, in case of drawer and/or loop failure.

If I were to upgrade to a Power8, at some point, I theoretically could eliminate my two 5877, put all 11 slots in Power8 CEC.
Not only would this eliminate all expansion drawers, but also both GX++ loops.
Hardware maintenance would also be reduced.

One negative would be that I'd be maxed, no room for expansion, currently I have 9 empty slots.

Any other negatives or thoughts from the group.

Thank You
_____
Paul Steinmetz
IBM i Systems Administrator

Pencor Services, Inc.
462 Delaware Ave
Palmerton Pa 18071

610-826-9117 work
610-826-9188 fax
610-349-0913 cell
610-377-6012 home

psteinmetz@xxxxxxxxxx<mailto:psteinmetz@xxxxxxxxxx>
http://www.pencor.com/

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