Date: Fri, 24 Dec 1999 11:43:30 +0300 From: Alexander Bezroutchko <abb@zenon.net> To: scsi@freebsd.org Subject: IFT3102 and FreeBSD 3.4-STABLE troubles Message-ID: <38633232.261EE905@zenon.net>
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Hello,
I have following configuration:
* two IFT-3102U2G controllers are configured in redundant mode
(caches get syncronized via channel 0), firmware revision 2.23
* channel 1 is disk channel, it serves three Ultra2 drives
* channels 2,3 are host channels
* two hosts (2 x PIII Xeon-550, RAM 512M, C440GX+, no disk),
FreeBSD 3.4-STABLE
* host1's ultra2 port is connected to channel2
* host2's ultra2 port is connected to channel3
When I pull away primary controller, processes which use disk
hangs. After ~4 sec secondary controller become primary.
Sometimes hung processes get running immediatery. But sometimes
unhangs only after 60 sec.
Also after controller reset (it takes 1-2 minute) some
directories became empty, another ones unreadable -- read
operation returns 'Device not configured'. The questions are:
1. Is it FreeBSD's or IFT's bug ?
2. Does anybody know solution/workaround ?
3. 'Disconnection' enabled on RAIDcontroller and on-board scsi
controller on hosts, is it correct ?
4. Does anybody have expirience maintaining servers without
local disk (external only) ? Are there any troubles ?
Any help would be greatly appreciated.
SY, Alexander Bezroutchko
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