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StorageWorks 8505 8mm Cartridge Tape Drive
Example:
# lsdev –Cc tape
Name
Status
rmt0
Available 00–03–00–50
Ž
Next, type:
# chdev –l <rmt*> –a density_set_1=<DENSITY_1> –a density_set_2=<DENSITY_2>
Example:
# chdev –l rmt0 –a density_set_1=140 –a density_set_2=20
rmt0 changed
Finally, type the following:
# chdev –l <rmt*> –a block_size=<SIZE>
Example:
# chdev –l rmt0 –a block_size=1024
rmt0 changed
where,
<rmt*> is the tape drive added as shown by the lsdev command.
<SIZE> is the fixed block size (0 = variable, 1024 is suggested).
<DENSITY_1> (140 suggested) and DENSITY_2 (20 suggested).
Code
0
for EXB-8500, compression on, suppress density error checking.
20
for EXB-8200, density error checking enabled.
21
for EXB-8500, density error checking enabled.
127
for current density, suppress density error checking.
140
for EXB-8500, compression on, density error checking enabled.
144
for EXB-8200, compression on, density error checking enabled.
The files that are created are:
Special File Name
/dev/rmt*
/dev/rmt*.1
/dev/rmt*.2
/dev/rmt*.3
/dev/rmt*.4
/dev/rmt*.5
/dev/rmt*.6
/dev/rmt*.7
D–2
Location
Description
Other SCSI Tape Drive
Density Code Meanings
Tape Drive Special File Characteristics
Rewind-on-Close
Retention-on Open
Yes
No
Yes
No
Yes
No
Yes
No
Bytes-per-Inch
No
Density Setting # 1
No
Density Setting # 1
Yes
Density Setting # 1
Yes
Density Setting # 1
No
Density Setting # 2
No
Density Setting # 2
Yes
Density Setting # 2
Yes
Density Setting # 2
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