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Revision 10 – 6 January, 2003

# ls -l /dev/rmt/?

A display similar to following will be shown:

/dev/rmt/0 -> ../~path~/st4,0

/dev/rmt/1 -> ../~path~/st5,0

In this example /dev/rmt/0 refers to the tape drive using SCSI ID 4 and /dev/rmt/1 refers

to the tape drive using SCSI ID 5.

6. A series of special files are created for each tape drive to modify the operation of the

st tape driver. To display the set of special files associated with a particular device, type

the following at a UNIX prompt:

# ls /dev/rmt/0*

A list of special files should be displayed:

/dev/rmt/0 /dev/rmt/0cbn /dev/rmt/0hn /dev/rmt/0m /dev/rmt/0u

/dev/rmt/0b /dev/rmt/0cn /dev/rmt/0l /dev/rmt/0mb /dev/rmt/0ub

/dev/rmt/0bn /dev/rmt/0h /dev/rmt/0lb /dev/rmt/0mbn /dev/rmt/0ubn

/dev/rmt/0c /dev/rmt/0hb /dev/rmt/0lbn /dev/rmt/0mn /dev/rmt/0un

/dev/rmt/0cb /dev/rmt/0hbn /dev/rmt/0ln /dev/rmt/0n

Using the following syntax:

/dev/rmt/[0- 127][l,m,h,u,c][b][n]

- where l,m,h,u,c specifies the density (low, medium, high, ultra/compressed),

b specifies the optional BSD behavior (see mtio(7)),

n specifies the optional no rewind behavior.

For example, /dev/rmt/0lbn

specifies unit 0, low density, BSD behavior, and no rewind.

7. The following tables define the relationship of the density codes to the device files

(l,m,h,u,c) for the various Overland tape drives configured in step 3. These examples

assume that the primary device file is /dev/rmt/0

Seagate LTO Ultrium (rewind, no BSD behavior)

Device File Density Code Format Selected

/dev/rmt/0l 0x00 100 GB uncompressed (LTO Ultrium-1 cartridge)

/dev/rmt/0m 0x00 100 GB uncompressed (LTO Ultrium-1 cartridge)

/dev/rmt/0h 0x00 100 GB uncompressed (LTO Ultrium-1 cartridge)

/dev/rmt/0u 0x00 200 GB compressed (LTO Ultrium-1 cartridge)

/dev/rmt/0c 0x00 200 GB compressed (LTO Ultrium-1 cartridge)

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