"Luca Pizzinato" <[EMAIL PROTECTED]> writes:

> Hi Gurus.
> I was setting up this box with FreeBSD 4.8 PRERELEASE. I cvsup'd and
> recompiled everything, no problems, then I was configuring volumes with
> vinum. The goal was to have 3 volumes mirrored 0+1.
> Well, I attached the mirrors on all the 3 volumes all at once, and after 5
> or 6 minutes (1 volume was already in sync) the box panic'd. I haven't
> seen the messages on console though.
> I tried again to attach the mirrors to the 2 remaning volumes, 10 minutes
> later panic again.
> So when the machine came up, I attached 1 mirror at the time :) no problems.
> I wonder if there could be an issue with the load. On the
> /var/log/messages I found quite a few of the following:
> Feb 23 23:00:54 cabomba /kernel: ad2d: UDMA ICRC error writing fsbn
> 58256191 of 28079488-28079615 (ad2 bn 58256191; cn 3626 tn 71 sn 28)
> retrying
> I read a mail where a guy blamed the 40 ribbon IDE cable when used with
> ATA/66 IDE disks, can anyone confirm?

Power problems would be my guess. Especially if the disks are
internal. Underspec'd power supply will give you all sorts of weird errors,
and the motherboard will finally reboot the machine.


  Dan Pelleg

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