[CentOS] connection speeds between nodes
m.roth at 5-cent.us
m.roth at 5-cent.usWed Mar 9 15:06:41 UTC 2011
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John Hodrien wrote: > On Wed, 9 Mar 2011, Ross Walker wrote: > >> On Mar 8, 2011, at 12:02 PM, John Hodrien <J.H.Hodrien at leeds.ac.uk> >> wrote: >> >>> The absolute definiton of safe here is quite important. In the event >>> of a power loss, and a failure of the UPS, quite possibly also followed by a >>> failure of the RAID battery you'll get data loss, as some writes won't >>> be committed to disk despite the client thinking they are. >> >> Don't forget about kernel panics and the accidentally pulled the >> plugs... > > Sure, but the kernel's always in a position to screw you over. While > you're being negative, include bad memory on the RAID card, and then your life > becomes really interesting. Hey, you forgot a failing connection on the backplane for the RAID.... mark "they were in slot 5 & 6, now they're in 14 and 15...."
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