On Tue, Mar 18, 2008 at 04:37:30PM -0500, Ron Johnson wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > On 03/18/08 15:44, Mike Bird wrote: > > On Tue March 18 2008 12:56:00 Michael S. Peek wrote: > >> But now I'm looking to build replacement servers and I thought I would > >> ask what the community uses for it's hardware RAID, and why? > > > > We use "nothing" for hardware RAID. Software RAID is much more > > flexible. With hardware RAID you always need to have a spare > > controller on hand, because without a matching replacement > > controller you can't retrieve your data after a controller failure. > > That's what dual redundant controllers are for. Both transfer data > for the same "device", and if one fails, the other keeps on plugging > away. > > Obviously, performance suffers, but at least the machine keeps on > chugging until you can replace the dead controller. > > Does Linux have that capability? I believe the kernel (+userland tools) can handle multipath (multipathd) > > > The downside of software RAID is that it is slower when rebuilding. > > However rebuilding is so rare that this is not a significant issue > > for us. > > > > However if you're doing RAID-5 you're seriously exposed to data loss > > from double drive failures, and a faster rebuild can help to reduce > > that window of vulnerability. We've stopped using RAID-5. We use > > RAID-1 (3-way in some applications) to make LVM physical volumes. > > - -- > Ron Johnson, Jr. > Jefferson LA USA > > "Working with women is a pain in the a**." > My wife > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1.4.6 (GNU/Linux) > > iD8DBQFH4DYaS9HxQb37XmcRAu+eAKDPDXpWuHpeuVb1RTWiCGs7XjnmdgCfSSaO > pdHWq9HgvuY7CYCbCpShYAE= > =BwPe > -----END PGP SIGNATURE----- > > > -- > To UNSUBSCRIBE, email to [EMAIL PROTECTED] > with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED] > >
--
"It just seems so un-American to me, the picture of the guy storming the house
with a scared little boy (Elian Gonzalez) there. I talked to my little brother,
Jeb I haven't told this to many people. But he's the governor of I
shouldn't call him my little brother."
- George W. Bush
04/27/2000
on NewsHour with Jim Lehrer
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