Western Digital MyBook 250GB USB takes *really* long to be recognized

Marc UBM Bocklet ubm at u-boot-man.de
Thu Jun 7 07:01:34 UTC 2007


On Wed, 6 Jun 2007 23:45:25 +0200
Marc "UBM" Bocklet <ubm at u-boot-man.de> wrote:

> 
> Hiho! ;-)
> 
> I just bought a Western Digital MyBook 250GB external USB 2.0 drive
> and I stumbled upon the problem mentioned in:
> 
> kern/107495: Fix long wait before WD My Book 250GB (USB) is recognized
> 
> There's a patch attached to that PR, which I applied, but it didn't
> help.
> 
> FreeBSD version is FreeBSD ubm.mine.nu 6.2-STABLE FreeBSD 6.2-STABLE
> 4: Wed Jun  6 19:58:12 CEST 2007
> 
> 
> 
> Symptoms are as follows: 
> 
> when I plug the drive in, it is immediately
> recognized by umass as:
> 
> umass0: Western Digital External HDD, rev 2.00/1.08, addr 2
> 
> About 10 to 15 minutes later, cam kicks in and recognizes it as:
> 
> da0 at umass-sim0 bus 0 target 0 lun 0
> da0: <WD 2500BB External 0108> Fixed Direct Access SCSI-0 device 
> da0: 40.000MB/s transfers
> da0: 238475MB (488397168 512 byte sectors: 255H 63S/T 30401C)
> 
> >From that point onwards, everything works fine, I just finished
> rsyncing my entire home directory (about 40gb) to the disk with ehci
> enabled.
> 
> I'm just curious if there is anything to be done about the long delay?
> (not that I care that much, drive is attached to my "server", so it
> won't be unplugged or be turned off very soon :-))
> 
> Thanks in advance! :-)

forgot my dmesg, find it attached to this mail :-)

Bye
Marc


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