Gavin Atkinson wrote:
On Mon, 2008-09-29 at 15:43 +0200, Miroslav Lachman wrote:
Jeremy Chadwick wrote:
On Sat, Sep 27, 2008 at 03:16:11PM -0400, Charles Sprickman wrote:
I've successfully done a hot-swap (hardware: SATA hot-swap backplane,
AHCI in use, SATA2 disks), but it required me to issue "atacontrol
detach" first (I am very curious to know what would've happened had I
just yanked the disk). Upon inserting the new disk, one has to be
*very* careful about the order of atacontrol commands given -- there
are cases where "attach" will cause the system to panic or SATA bus to
lock up, but it seems to depend upon what commands were executed
previously (such as "reinit").
Sorry if this is off-topic, but I wanted to mention it.
Hot-swapping is totally upredictable on FreeBSD (from my experiences). I
tried it many times on Asus 1U servers and on Sun Fire X2100 / X2100 M2
with FreeBSD 6.2 and 7.0 (both i386).
I can't speak for the Dell, but I can at least say that at least on the
X2100, not even Solaris supports either hot-swapping or the built in
software RAID. When they were first released the advertising said that
they had these, but those claims was quietly removed from the website
some weeks after release. Short answer: give up on hot-swap the X2100.
As for the X2100 M2, that is supposed to support it, and I believe it
works fine for us under Solaris. I'm not sure if I've got any spare
M2's here, if so I'll have a play.
It was about year ago with Asus and Sun Fire X2100. I don't have Asus
servers now (all returned as reclamation). Now I am running one X2100
and about ten X2100 M2. I have one spare X2100 M2, so if somebody have
exact order of commands used to "hot-swap" the disk, I can test it in
few days.
Miroslav Lachman
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