UDO30I external SCSI Drive -
device comes with UDO drive resource CD, 68pin Micro-D wide SCSI cable, a SCSI
power cable and two 30 GB UDO media, one
one write once read many (WORM).
On the front of the drive, there are from left to right, the
UDO logo, the emergency eject hole and the eject button. Above it there
are two leds, the left one is the active (Amber) and the right one is the ready
On the back of the drive from left to right there is the power
switch below of the SCSI ID
switch, two SCSI-III 68-pin Micro-D connectors above the AC
power connector and the fan/air filter.
The Plasmon UDO30I SCSI drive features
double sided 30GByte (15GB per side) storage on rewritable and write once
media. It uses half height 5.25 inch form factor media cartridges, operating
at Constant Angular Velocity (CAV) with continuous spin at the higher rate
and communicate through a SCSI III connection.
Wide Ultra 2 LVD SCSI keyed 68 pin micro-D
||Rotational Speed: 2160 rpm
|Media load time:
|Media unload time:
Avg. seek time
(1/3 full stroke): 35 ms
|Max. Read Transfer
Rate: 8 MB/s
Max. Write Transfer
Rate: 4 MB/s (including verify)
|Objective Lens Numerical
Aperture: 0.7 NA
||MSBF: 750,000 load/unload
|MTBF: 100,000 hours
5 to 45C
5 to 90% RH (non-condensing)
Horizontal or Vertical
||H 41.1 x W 146 x
D 203 mm - 1.5 kg
device was connected to our PC, it was identified as Disk drive "Plasmon
UDO1 SCSI Optical Device" under
It is necessary first to install a hotfix patch prior to inserting the media
This step is needed because the UDO drive uses 8KB sector size for optimized
read/write performance across a wide range of file sizes, which Windows does
even with Windows XP SP1.
Next, we installed the Software Architects UDO driver Software, also on the
Also, under drive properties, write mode tab,
we selected cached write mode for increased performance, although direct write
choice should the PC lose power or crash.
For our tests we are going to use only the RW cartridge as
the Write once media unfortunately for us, was defective and the system
did not recognize it.