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Parameter
Value
<no. of
4
densities>
<density 0>
0x00
<density 1>
0x44
<density 2>
0x46
<density 3>
0x58
<default
3
density>
<X timeout>
Values for the parameters for name are as follows:
Parameter
Value
target
lun
Meaning
Variable record size not limited to 64 KB.
0x8000
Device determines which of the two mode pages the device
0x10000
supports for selecting or deselecting compression.
So 0xd639 indicates variable record length, bsf and bsr enabled, long
timeouts for erase, EOD recognition, Unloadable device driver, 5 x longer
timeouts, buffer writes and pre-acknowledge success, variable records not
limited to 64 KB, auto-density over-ride and MODE SELECT compression.
Similarly, 0x018659 indicates variable record length, bsf and bsr enabled,
automatic density determination, EOD recognition, unloadable device driver,
variable records not limited to 64 KB, and device selection of mode pages
for controlling compression.
There are four densities following in the parameter list.
Creates a device file with compression disabled.
The Ultrium 3 density code for data compression with Ultrium 3 media
The Ultrium 4 density code for data compression with Ultrium 4 media
The density code for data compression enabled by default.
Density 3 (0x58) is the default for Generation 5 drives.
All timeouts are in seconds
X specifies the target address
X
Specifies the LUN for the device.
0
Volume 5: UNIX, Linux and OpenVMS configuration guide
Meaning
8
of the device.
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