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All Power7 710, 720, 730, and 740 do not allow the cover to be opened at all. Doesn't matter if it is a "B" or "C" model.

Pete

--
Pete Massiello
iTech Solutions
http://www.itechsol.com


-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of DeLong, Eric
Sent: Wednesday, November 16, 2011 12:35 PM
To: Midrange Systems Technical Discussion
Subject: RE: Cards Not Hot Swap in 720 Power7 CPU Chassis ( CEC )

Just so we're clear, you're talking of the PRIOR generation of 7xx hardware, not to be confused with the CURRENT generation of 7xx servers... All current generation IBM i servers support concurrent maintenance, right?

-Eric

-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Pete Massiello - ML
Sent: Wednesday, November 16, 2011 6:47 AM
To: Midrange Systems Technical Discussion
Subject: RE: Cards Not Hot Swap in 720 Power7 CPU Chassis ( CEC )

The Dr. is right as usual. I think this is the only flaw in the design of the 710, 720, 730, 740 and should have been fixed when they came out with the "C" models, but unfortunately it wasn't. We have progressed backwards when it comes to concurrent maintenance in those models, compared to what we had with similar Power6 & Power7 machines. I understand the airflow issues with the machine, but they could have put a hinge on the top cover, so the cover stays over the CPU's keeping airflow moving, but would allow access to the cards in the back via a hinged opening. It would have increased the cost, but I think the value of concurrent maintenance surely out weights the cost of additional components. I hope this is fixed on the Power8 models when they come out in a few years.

Pete

--
Pete Massiello
iTech Solutions
http://www.itechsol.com

-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of DrFranken
Sent: Tuesday, November 15, 2011 6:38 PM
To: Midrange Systems Technical Discussion
Subject: Re: Cards Not Hot Swap in 720 Power7 CPU Chassis ( CEC )

Yes. This is true for 710, 720, 730, and 740 and both the 'B' and 'C'
generations. ***DO NOT REMOVE*** the cover while operating or you'll be able to remove the cards.... because the power will shut off and do so real sudden-like. (oops!) IBM chose not to include that capability in the low end machines.

If you have expansion units such as 5802 or 5877 those units support concurrent maintenance.

- Larry "DrFranken" Bolhuis

On 11/15/2011 6:09 PM, Kirk Goins wrote:
SO00000, glad we are moving forward. Just found out I need to take
down my whole 720 ( 8202-E4B) to replace a fax card in the CPU.[?][?]



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