Subject: Re: hard driver CRC error with RAID 5 under 2.0 release
To: None <port-i386@netbsd.org>
From: Thor Lancelot Simon <tls@rek.tjls.com>
List: port-i386
Date: 12/15/2004 10:41:31
On Wed, Dec 15, 2004 at 03:30:58AM -0800, TYMYT wrote:
>
> I think the issue not in cables.
> UltraDMA mode can be the cause due to number of
> drives.
> You have to try to turn an UltraDMA mode off.
That is a very bad idea; the non-UltraDMA transfer modes don't include
the CRC error-checking code that is telling you that the data being
transferred is corrupted.
You can try a slower UltraDMA transfer mode; but, ultimately, you need
to understand that 18" is the maximum specified length for IDE cables
and that you should not expect things to work well if you exceed it.