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SubjectRe: 2.4.18: many IDE errors
I reported CRC errors, intermittently, on all six IDE disks, each
a master on a separate cable.

Andre Hedrick wrote:
> It is not a case of bad cables but maybe cable routing.
> Also, four 160GB disks eat power!

I reorganized the cables so that each takes a differnt path from the
mobo to the disk. I still see errors, so far on hda. I will see if
the rate is really reduced.

> I have a box dual athlon similar setup w/ 460W ps
> I have to wait for the PS to warm up or there is not enough juice to
> properly spin up the last drive. However if I replace the four 160GB's
> with four 20GB Seagate's no problem.

I do not have spinup problems. Neither does the computer :-)

> You are going to need at least a 400W PS w/ almost no ripple to make it
> work. If you have this then check the cable routing.

The new PS should do it then.

> Also hdparm -i /dev/hdX to see if their transfer rates are reduced.

OK, I checked, and after a bus reset the disk in error was dropped
from udma5 to udma4. I did not see more errors after that (but the
setup is up for less than one day so far). I plan to push it hard
tomorrow.

--
Eyal Lebedinsky (eyal@eyal.emu.id.au) <http://samba.org/eyal/>
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