I've found that those hot swap enclosures tend to be a bit more
reliable when you buy the SCA versions and only use LVD cabling
to connect a group of them to the controller. Calpc and a bunch
of other vendors make rather inexpensive units that are designed
to hold 4 "drive sleds" with only 2 LVD connectors on the back.
I generally use one to daisy chain 2 of these together, another
to connect them to the controller, and the one on the end to
terminate everything. That's been working well for me even at
80 and 160mb/sec.
Cheers,
Chris
> From [EMAIL PROTECTED] Wed May 24 15:18:22 2000
>
> Try setting your SCSI bus one notch lower (63MBytes/sec, i believe).
> I had this problem on our RAID set up because the hot-swap box caused
> too much interference with the signal for 80MByte/sec to work.
> Underclocking fixed the problem.
>
> The SCSI card is the Tekram DC390U2B (SYM8xxx driver). I have reason to
> believe this may be due to Linux drivers not taking full advantage of
> the hardware as Adaptec AIC7xxx 80MByte/sec works on the same hot swap
> set up.
>
> cheers,
> -s
>
> octave klaba wrote:
> >
> > Hi,
> >
> > running on 2.2.14 / raid-soft-1 on 2X18Go scsi
> >
> > in dmesg I read:
> >
> > scsi : aborting command due to timeout : pid 13116637, scsi0, channel 0, id 0, lun
>0 Write (10) 00 00 dc 04 59 00 00 08 00
> > scsi : aborting command due to timeout : pid 13116638, scsi0, channel 0, id 1, lun
>0 Write (10) 00 01 20 04 99 00 00 08 00
> > scsi : aborting command due to timeout : pid 13116640, scsi0, channel 0, id 1, lun
>0 Write (10) 00 01 24 03 a1 00 00 08 00
> > scsi : aborting command due to timeout : pid 13116641, scsi0, channel 0, id 0, lun
>0 Write (10) 00 01 20 04 99 00 00 08 00
> > scsi : aborting command due to timeout : pid 13116642, scsi0, channel 0, id 1, lun
>0 Write (10) 00 01 30 04 31 00 00 08 00
> > scsi : aborting command due to timeout : pid 13116643, scsi0, channel 0, id 0, lun
>0 Write (10) 00 01 24 03 a1 00 00 08 00
> > SCSI host 0 abort (pid 13116609) timed out - resetting
> > SCSI bus is being reset for host 0 channel 0.
> > (scsi0:0:0:0) Synchronous at 80.0 Mbyte/sec, offset 31.
> > (scsi0:0:1:0) Synchronous at 80.0 Mbyte/sec, offset 31.
> >
> > ??
> >
> > thanks for help
> > Octave
> >
> > Amicalement,
> > oCtAvE
> >
> > "J'aime trop la vie pour ne vouloir être qu'heureux."
>
--
Christopher Mauritz
[EMAIL PROTECTED]
