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Message-ID: <5234281E.20205@gmail.com>
Date: Sat, 14 Sep 2013 11:10:54 +0200
From: Alan McKinnon <alan.mckinnon@gmail.com>
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Subject: Re: [gentoo-user] Re: {OT} Need a new server
References: <CAN0CFw0dkS=vCSXTPWyXDKOi=RVzKGEqXo56YiupvejfvJc1yQ@mail.gmail.com> <CAN0CFw2agKWRS2eBsPEx3sT9ML7HN96bu-tad58tYemZATgiUg@mail.gmail.com>
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On 14/09/2013 10:59, Grant wrote:
>> It's time to switch hosts. I'm looking at the following:
>>
>> Dual Xeon E5-2690
>> 32GB RAM
>> 4x SSD RAID10
>
> If I make this 6x SSD RAID10 with redundant power supplies, what is my
> weakest link as far as hardware? If a CPU craps out, will the system
> keep running?
Your weakest link is not having redundant power feeds. Two PSUs doesn't
help much when they both draw power from the same place :-)
Second is inadequate cooling in the data centre
Third is idiots in the data centre doing stupid things like activating
the fire suppression or any of the other truly epic fail tricks clueless
customers get up to.
Then there is is drive failure - it's the hardest working component.
SSDs less so, but they still draw considerable power and get hot
Everything else is a distant concern. When did you last hear of a CPU
failure anywhere at any time? CPUs do not fail for the most part. When
they do it's because everything else got hot which brings us back to #2
in the list.
--
Alan McKinnon
alan.mckinnon@gmail.com