[svlug] Hardware for a new server
rick at linuxmafia.com
Mon Feb 11 13:39:16 PST 2013
Quoting Luke S. Crawford (lsc at prgmr.com):
> Hm. So if you want to spend a bit more money, and a bit more power,
> I've had very good luck with the xeon E3-1220L - it's a dual-core
> xeon with a 20w TDP, and it supports up to 32GiB unbuffered ECC.
So, fans again. I'm sure it's good hardware, but I'm trying to see if I
can avoid needing them. Also, while I certain am not turning up my nose
at enjoying a glorious excess of CPU capacity, for purposes of my needs
over the past decade the only thing limiting about a PIII/650 has been
limited RAM address space. A modest CPU step-up will be nice, but I
don't need a huge one.
> Without ECC, I never know if a particular problem
> is hardware, 'cosmic rays' or software. ECC gives me a lot more
> visibility into errors; I sleep much better if I know what, exactly,
> caused that crash last week.
Yeah, funny about that, I historically have held the same prejudice in
spades. When I first deployed the VA Linux 2230 as an urgent
replacement for a VA Research model 500 destroyed by a freak
lightning/wind storm, I expected that my use of ECC and the 2230's
L440GX+ 'Lancewood' motherboard's support for same would clue me
instantly to RAM problems. Turned out, it didn't:
Anyhow, any time in the future that I even suspect RAM or
motherboard-RAM-support problems, I'm going to make a beeline to
iterative kernel compiles with 'make -j' to some suitably large number,
ECC or no ECC. And my biggest takeaway lessons are that I now know how to
identify and isolate a RAM problem very efficently using just Linux, and
that ECC just doesn't catch everything anyway.
> The other thing I'd suggest (if the primary goal is to minimize hassle
> and if you can spend a few more bucks towards that end) is to mirror all
> the disks. All the SSD, too.
Yept, that's the position I've ended up at.
> And mount all disks/ssd in hot-swap bays.
For a home server, I'm willing to turn a screwdriver when/if that comes
More information about the svlug