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09-24-2012 02:27 PM
09-24-2012 02:27 PM
Re: DL585 G7's rebooting with no warning..
Hello,
Is it possible to run another version of ESX on one server (ESX5u1 or ESX5.1) just to see any difference?
Another hint - I saw here in forum user with similar problem - random reboots. It was cause by UPS devices which werenot able to handle modern G5 and G6 PSU's - just wonding - is everything in the same server room/ same rack / same UPS / same curcuits?
Jan
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09-26-2012 11:44 PM
09-26-2012 11:44 PM
Re: DL585 G7's rebooting with no warning..
We found some BIOS setting that should be turned off when running esx... ASR seems to be the most important one.. Also please see this KB from vmware on what steps should be taken when the server freezes (press NMI button to generate a esx core dump).
Recommended BIOS settings for DL585G7:
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09-26-2012 11:47 PM
09-26-2012 11:47 PM
Re: DL585 G7's rebooting with no warning..
Jan, we have checked with our DC vendor and they have checked thier power and UPS logs with no indication of a problem.
Do you remember how the power supplies affected the UPS (or the other way around)?
Thanks,
Hampus
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09-27-2012 01:00 PM
09-27-2012 01:00 PM
Re: DL585 G7's rebooting with no warning..
Hello, I am not able find exact link (it was on old-style forum), but here are some hints - generally it was issue between very modern HP PSU (G6+) an line-interactive UPSs - maybe try this link http://blog.samkendall.net/2010/03/22/hp-proliant-g6-series-server-issues-with-line-interactive-upss/ , another discussion: http://serverfault.com/questions/199861/ups-with-a-hp-proliant-server
A I remember problem was fixed by replacing UPS's with higher level UPS.
In your case - try to find out what is exact type of your DC vendor UPS and check compatibility with your HP servers with HP.
(again - UPS problem is only my hypothesis :( )
Jan
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09-27-2012 10:35 PM
09-27-2012 10:35 PM
Re: DL585 G7's rebooting with no warning..
Thanks Jan! I dont think that is an problem in our case, feels like they talk about low-end UPS for small offices or so. We run our servers in a really big DC with huge, and quite new, UPS's.
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10-02-2012 09:21 PM
10-02-2012 09:21 PM
Re: DL585 G7's rebooting with no warning..
same issue experienced here but with the smaller DL385 G7's running ESXi 4.1 U1 we have 14 in production across 2 site and both clusters experience the same unexpected reboots I've logged countless cases with VMware and HP I've lost count on the number of motherboards and CPU’s we have replaced and still see the same unexpected reboots.
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