Mel пишет:
On Friday 26 December 2008 08:12:49 Artem Kuchin wrote:
I am not even sure that it is related to freebsd, but maybe someone could
point out the problem.
We wanted to upgrade our hosting server from
FreeBSD 6.2, 3ware 8506-4LP SATA RAID, raid 5
to
FreeBSD 7.1 (RC for now), 9550SXU-4LP, raid 10
We have tested the new installation on ASUS P5K WS motherboard
with PCI-X slot while the server kept running.
The server has Supermicro X5DPE-G2 (pretty old one, 2004).
So, when everything was ready, i just took out the old controller and
disks and installed the new controller and the array disks.
The system booted up, but when i started very intense file operations
the file
system just froze. The weird thing is that any open program which does
not use
filesystem kept running fine. For example, i could type and edit in open
ee editor,
but copying progress bar in midnight commander just stood still. If i
tried to save file
or open file or do anything disk related from ee in another console the
program froze too,
apparently waiting for disk system to reply forever (i tried waiting for
20 minutes).
I could even connect to ssh port, but it does not auth because sshd
needs to read something
from the disk.
I put everything back into Asus P5K WS and tested it. Everything worked
fine again.
Any idea what might going on here?
OS bugs aside, a dead disk that keeps getting IO request explains all
symptoms. Dead can also mean, faulty cable, buggy connector. I would expect
the hardware raid controller to pick up on it though and remove it from the
array.
No, not the case here. As i said, the same controller with the same
disks work perfectly on ASUS motherboard.
--
Artem
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