restore(8) to USB key: terrible slow

[Hans Petter Selasky]

On Wednesday 17 November 2010 13:08:52 Matthias Apitz wrote:
> Hello,
> 
> I've a dump(8) created from another USB key of ~3 GByte size and I'm
> restoring it into a new created file system on a key which says on
> attach:
> 
> ugen7.2: <USBest Technology> at usbus7
> umass0: <USBest Technology Intenso Premium Line, class 0/0, rev
> 2.00/1.00, addr 2> on usbus7
> umass0:  SCSI over Bulk-Only; quirks = 0x0000
> umass0:3:0:-1: Attached to scbus3
> da0 at umass-sim0 bus 0 target 0 lun 0
> da0: <Intenso Premium 0.00> Removable Direct Access SCSI-2 device
> da0: 40.000MB/s transfers
> da0: 3853MB (7892087 512 byte sectors: 255H 63S/T 491C)
> 
> after around 90 minutes of restore the taget file system says 19 MByte
> used (i.e restored):
> 
> $ df -kh /mnt
> Filesystem     Size    Used   Avail Capacity  Mounted on
> /dev/da0s1a    3.6G     19M    3.3G     1%    /mnt
> 
> What is wrong with this? If this does matter: 8-CURRENT.
> 
> Thanks
> 
> 	matthias

Hi,

Maybe you get some answers from:

sysctl hw.usb.umass.debug=-1

Kernel needs to be compiled with:

options USB_DEBUG

--HPS