SCSI Zip drive questions

Andrea Venturoli ml.diespammer at netfence.it
Sat May 21 06:22:50 PDT 2005


Hello.
I've got a SCSI Zip drive which I'd like to use on a 5.4 box. So far it 
works with two minor problems:




a) I'd like to be able to mount it as my day-to-day user. So I put 
myself in the operator group; added the following to /etc/devfs.conf:

own     /dev/da1        root:operator
perm    /dev/da1        0660
own     /dev/da1s4      root:operator
perm    /dev/da1s4      0660

Then the following to /etc/fstab:

/dev/da1s4              /mnt/zip        msdos   rw,noauto       0       0

The issue here is that "mount /mnt/zip" will fail because /dev/da1s4 
does not yet exist. First I need to try and mount /dev/da1, then da1s4 
will be created.
Is there a way to automate this?





b) It's *slow*! The same hardware with a different operating system 
(OS/2) gave almost twofold performances! Copying a 90MB file to a zip 
drive takes more than 10 minutes and it didn't with the old software.
Is there a way to improve this?
Here's the relevant dmesg:

sym0: <895> port 0xd800-0xd8ff mem 
0xd5201000-0xd5201fff,0xd5202000-0xd52020ff irq 15 at device 10.0 on pci0
sym0: Tekram NVRAM, ID 7, Fast-40, LVD, parity checking
...
(probe5:sym0:0:5:0): phase change 6-7 6 at 00265f8c resid=4.
da0 at sym0 bus 0 target 0 lun 0
da0: <SEAGATE ST39205LW 0105> Fixed Direct Access SCSI-3 device
da0: 80.000MB/s transfers (40.000MHz, offset 31, 16bit), Tagged Queueing 
Enabled
da0: 8750MB (17921835 512 byte sectors: 255H 63S/T 1115C)
da1 at sym0 bus 0 target 5 lun 0
da1: <IOMEGA ZIP 100 E.08> Removable Direct Access SCSI-2 device
da1: 3.300MB/s transfers
da1: Attempt to query device size failed: NOT READY, Medium not present
cd0 at sym0 bus 0 target 4 lun 0
cd0: <PLEXTOR CD-ROM PX-40TS 1.12> Removable CD-ROM SCSI-2 device
cd0: 20.000MB/s transfers (20.000MHz, offset 15)
cd0: Attempt to query device size failed: NOT READY, Medium not present 
- tray closed
cd1 at sym0 bus 0 target 6 lun 0
cd1: <YAMAHA CRW8824S 1.0a> Removable CD-ROM SCSI-2 device
cd1: 20.000MB/s transfers (20.000MHz, offset 15)
cd1: cd present [1 x 2048 byte records]
(da1:sym0:0:5:0): READ CAPACITY. CDB: 25 0 0 0 0 0 0 0 0 0
(da1:sym0:0:5:0): CAM Status: SCSI Status Error
(da1:sym0:0:5:0): SCSI Status: Check Condition
(da1:sym0:0:5:0): NOT READY asc:3a,0
(da1:sym0:0:5:0): Medium not present
(da1:sym0:0:5:0): Unretryable error
Opened disk da1 -> 6
(da1:sym0:0:5:0): READ CAPACITY. CDB: 25 0 0 0 0 0 0 0 0 0
(da1:sym0:0:5:0): CAM Status: SCSI Status Error
(da1:sym0:0:5:0): SCSI Status: Check Condition
(da1:sym0:0:5:0): NOT READY asc:3a,0
(da1:sym0:0:5:0): Medium not present
(da1:sym0:0:5:0): Unretryable error
Opened disk da1 -> 6

The errors should be normal, since the drive was empty on boot.


  bye & Thanks
	av.


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