Re: Dell Fan Speeds / Power management (OS CONTROL) & Crapy data center.
* keith [2012-02-17 14:33]: > an "operator" was saying that it's the fan's in the servers that > consume all the power. He's wrong, the power LED takes all the power. -- Henning Brauer, h...@bsws.de, henn...@openbsd.org BS Web Services, http://bsws.de, Full-Service ISP Secure Hosting, Mail and DNS Services. Dedicated Servers, Root to Fully Managed Henning Brauer Consulting, http://henningbrauer.com/
Re: Dell Fan Speeds / Power management (OS CONTROL) & Crapy data center.
On 2012-02-17, keith wrote: > In Dell PowerEdge R310's and proably other poweredge servers there's a > setting in the bios for power saving that I've set to OS Control. > > On Monday a pdu that powers a number of our R310's and some other kit > burnt out at the big plug that plugs into the pdu. The Pdu was replaced > by the data center staff and when I wen to the data center to plug our > servers back in again an "operator" was saying that it's the fan's in > the servers that consume all the power. Power consumption of your equipment shouldn't cause this, there should be a circuit breaker that trips at a current draw below the maximum load of PDUs etc in order to protect them. I would be looking for a proper report from the datacentre/electricians into why this happened. Simply replacing failed power equipment without an investigation into what went wrong is not acceptable in this type of environment. I would be tempted to set everything to max performance and keep a close eye on it so that any failures will become clear more quickly, rather than happen randomly later at an inconvenient moment...
Dell Fan Speeds / Power management (OS CONTROL) & Crapy data center.
In Dell PowerEdge R310's and proably other poweredge servers there's a setting in the bios for power saving that I've set to OS Control. On Monday a pdu that powers a number of our R310's and some other kit burnt out at the big plug that plugs into the pdu. The Pdu was replaced by the data center staff and when I wen to the data center to plug our servers back in again an "operator" was saying that it's the fan's in the servers that consume all the power. That's made me think that maby the temperature in the datacenter might have gone through the roof on the Monday afternoon and have caused all the R310's fans to kick in on full power and possible break the pdu? So my question is really, what should I set the power saving setting to on the Dell server that are running OBSD. (all 4.9 or 5.0 + amd64) The link below is for the R310 and is all about the bios / power saving states. http://www.google.co.uk/url?sa=t&rct=j&q=R310+os+control&source=web&cd=2&ved=0CCoQFjAB&url=http%3A%2F%2Fwww.dell.com%2Fdownloads%2Fglobal%2Fproducts%2Fpedge%2Fen%2Fpoweredge_r310_techguide_final1.pdf&ei=7VA-T4myMY7B8gOi67WiCA&usg=AFQjCNHE9kqeypH1u6XRcT94GhXS07VPJA&cad=rja I've now got a APC Netbots with external probes monitoring / graphing & Emailing so if this happens again I've at least got some environmental data to help work out why this is happening. Cheers Keith