[CentOS] connection speeds between nodes

m.roth at 5-cent.us m.roth at 5-cent.us
Wed Mar 9 15:06:41 UTC 2011

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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