Re: Broken Firewire 400/SCSI on ppc Powerbook5,8
From: Wolfgang Pfeiffer <hidden>
Date: 2006-09-02 23:27:02
On Sat, Sep 02, 2006 at 09:18:07PM +0200, Stefan Richter wrote:
Alas I am out of ideas. Perhaps you should purchase a new enclosure. Before you do that, you could test the AluBook running Linux and TiBook in target disk mode again to exclude the possibility of problems at the AluBook's side. Use "hdparm -tT /dev/sda" to try a few actual block read operations. This should show about 20 MByte/s. It is a read-only test and therefore safe.
OK, I did this test with the unmounted Tibook /dev/sda (target mode). So I executed the one-liners below on the alubook. /dev/sda should be the hard disk on the tibook: #################################################### # /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 [root@ 01:21:02]# /sbin/hdparm -tT /dev/sda /dev/sda: Timing cached reads: 1232 MB in 2.00 seconds = 615.19 MB/sec Timing buffered disk reads: 34 MB in 3.04 seconds = 11.17 MB/sec [root@ 01:21:20]# /sbin/hdparm -tT /dev/sda /dev/sda: Timing cached reads: 1260 MB in 2.00 seconds = 628.93 MB/sec Timing buffered disk reads: 36 MB in 3.07 seconds = 11.72 MB/sec [root@ 01:21:35]# ############################################################## Looks good, doesn't it? Thanks again Best Regards Wolfgang -- Wolfgang Pfeiffer: /ICQ: 286585973/ + + + /AIM: crashinglinux/ http://profiles.yahoo.com/wolfgangpfeiffer Key ID: E3037113 http://keyserver.mine.nu/pks/lookup?search=0xE3037113&fingerprint=on