Re: Atto UL5D: negotiates only up to FAST-40 SCSI

[Sven Rudolph <Sven_Rudolph@drewag.de>]

Sven Rudolph <Sven_Rudolph@drewag.de> writes:

> FAST-160 is detected when the same cable, storage cage and disk drive
> are connected to the LSI controller, but on the Atto only FAST-40
> appears. Does it make sense to try another SCSI cable?

Something I forgot to mention: I became aware of the problem when I
tried to read from (or write to (?)) three disks in parallel and the
sum of the transfer speeds was a bit below 40 MBytes/second when I ran
two disks and it was the nearly the same with three disks. The first
disk was the fastest in the three-disk test run, and the third was the
slowest. I suppose this is due to SCSI priority by SCSI ID. So I'm
quite sure that the bus really only runs in FAST-40 mode.

	Sven