Jeff Lasman spake the following on 4/3/2007 8:42 AM:
On Tuesday 03 April 2007 08:14 am, Scott Silva wrote:
It seems unusual to have hotswap cages and not have a hotswap capable controller.
Which is why I want to do some testing.
I think SAS is hot-swappable, but I really don't think IDE or SATA is, and SCSI might be if it is newer.
Definitely SATA. Definitely hotswap.
http://www.serversdirect.com/config.asp?config_id=SDR-5015M-T+B
We've been using this configuration for some time; some of the details may have changed.
According to linuxmafia:
http://linuxmafia.com/faq/Hardware/sata.html#intel-ich7
It's fake RAID and we've always set it up as software RAID.
(Maybe we shouldn't be?)
Jeff
You are better off with software raid unless you buy those systems with the add-in 3ware card. Looking around the net, the only software raid solution that I see that says it supports hot-swap and auto-reconstruction is EVMS (evms.sourceforge.net). But RedHat (and CentOS) don't ship with EVMS.
I couldn't find anything to say whether the linux MD code does or doesn't support hotswap.