On Fri, 29 Jun 2001, Andrew Klaassen wrote:
> On Fri, Jun 29, 2001 at 12:28:06PM -0400,
> Martin K. Petersen wrote:
> > FWIW, almost all the XFS corruption bugs (with RAID or
> > otherwise) I've seen so far have been incorrect IDE hdparm
> > tuning or bad cabling.
> My question is really OT for this list, but how might one go
> about checking for bad cabling? Is there any software that can
> find it consistently?
If the cable is not correct some cards will report it.
The promise controllers can report if a IDE cable is 80 pins or not.
And the kernel sometimes also gives back errors. I have seen it once
already. The ATA66 and ATA100 standard have CRC checking for data sent
over the cable. However forcing another a transfer mode is dangerous
and does net let a IDE interface set the correct mode on its own.
I don't know if scsi has some form of CRC control.\