Broken Firewire 400/SCSI on ppc Powerbook5,8
Stefan Richter
stefanr at s5r6.in-berlin.de
Tue Sep 5 02:58:40 EST 2006
Wolfgang Pfeiffer wrote on :
...
> # /sbin/hdparm -tT /dev/sda
>
> /dev/sda:
> Timing cached reads: 1244 MB in 2.00 seconds = 620.49 MB/sec
> Timing buffered disk reads: 34 MB in 3.02 seconds = 11.24 MB/sec
...
> Timing buffered disk reads: 34 MB in 3.04 seconds = 11.17 MB/sec
...
> Timing buffered disk reads: 36 MB in 3.07 seconds = 11.72 MB/sec
...
Looks quite slow. I get 18 MB/s from a 20GB 2.5" HDD in an 1394a
enclosure, on an 1394a adapter or same on an 1394b adapter. The HDD was
actually taken out of a TiBook some time ago.
But I have no reference values of PowerBooks in target disk mode. This
mode is probably not optimized for performance.
--
Stefan Richter
-=====-=-==- =--= --=--
http://arcgraph.de/sr/
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