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тАО01-11-2007 03:51 AM
тАО01-11-2007 03:51 AM
I can see a firmware under Windows 2003 that fixes this issue, but it's not available for Linux (RHEL4) - Server Blade and Power Management Module Firmware.
Is there some other place I can download this firmware or perhaps there's a real problem?
thank you for your insight.
Solved! Go to Solution.
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тАО01-16-2007 03:05 AM
тАО01-16-2007 03:05 AM
SolutionWe looked at this with HP engineering and found a few issues.
1) The original spec of 5 enclosures, powered by 2 3-phase supplies, filled ith blades, was based on G2 power consumption. When G3's came out, power requirements went up. 5 enclosures was dropped, per HP engineering, as a supported configuration. So you should only use 4 enclosures at max.
Also, we had an issue with the enclosures not having enhanced backplanes, which we are in the middle of rectifying.
We had 5 enclosures of mostly G2's, and then 10 G3's. It put us over the capacity threshold of the power supplies by something like 1-2 Watts. It was crazy, but we got emails CONSTANTLY.
The fix was that we first just took G3 blades out until the problem went away, moving them to a new enclosure. Then we reduced each rack to 4 enclosures, on 2 3-phase power supplies.
At this time we are finishing our upgrade to enhanced backplanes. The backplanes aren't a root cause, but engineering did tell us that G3's work better w/ the enhanced backplane, and G4's require it to get dual nics functioning.
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тАО01-16-2007 03:44 AM
тАО01-16-2007 03:44 AM
Re: Rack power subsystem not redundant
the rack we are having problem with has 3 enclosures with 1 enclosure of power supply. Therefore from what you saying (4 on 2), we may have to move the 1 enclosure or get 1 more ps.
To me, it's just odd that on the iLo rack view, the power consumption is all < 50% for all the individual power supply. I guess we can't trust that reading then.
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тАО01-16-2007 04:09 AM
тАО01-16-2007 04:09 AM
Re: Rack power subsystem not redundant
I think that's your problem right there. I think you need another power supply enclosure.. 3 phase? just get one more.
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тАО01-16-2007 07:07 AM
тАО01-16-2007 07:07 AM
Re: Rack power subsystem not redundant
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тАО01-16-2007 07:27 AM
тАО01-16-2007 07:27 AM
Re: Rack power subsystem not redundant
thank you.
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тАО01-16-2007 10:01 AM
тАО01-16-2007 10:01 AM
Re: Rack power subsystem not redundant
page 64-68
http://h20000.www2.hp.com/bc/docs/support/SupportManual/c00065042/c00065042.pdf
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тАО01-17-2007 09:21 AM
тАО01-17-2007 09:21 AM
Re: Rack power subsystem not redundant
Thank you.
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тАО01-18-2007 01:53 AM
тАО01-18-2007 01:53 AM
Re: Rack power subsystem not redundant
Power available in C box by default use number for side A.
You have 314 and 383 to consume more per side in power enclosure.
With two sides running at same time you use less than 50%, however in case one side goes down you need to divide 314 or 383 in the half, which makes 157 and ~192.
As normally full bay server consume in average 240-325 (depend on the model). Numbers 157 and ~192 won't be able to cover consumption of one blade 240-325 and it might go down or other small production interruptions. To keep redundancy you need to keep numbers 157 and ~192 - above of one server consumption.
How it could be done.
1. add additional 3U 3Phase power enclosure
2. you can add 3U 1Phase in combination with 3Phase enclosure
3. you can add 1U power enclosure to supply power for one of Blade enclosures
Or last but not the best options are:
4. pull one server out
5. Remove some components like fiber card if not used or one - two processors from (dual box) to reduce power consumption.
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тАО01-18-2007 02:04 AM
тАО01-18-2007 02:04 AM
Re: Rack power subsystem not redundant
Example added
Also one of notes you had not mentioned firmware - latest one 2.32 you can update from firmware CD it has option to update blade Components
And it could be done with command line from Linux
Se pages for Updates
http://h18023.www1.hp.com/support/files/server/us/download/26082.html
http://h18023.www1.hp.com/support/files/server/us/download/25831.html