Configuring HP-UX For Peripherals

186 Chapter7
Configuring Tape Drives
Selecting Device Drivers for a Tape Device and Interface
c. Naming convention for systems installed with long file names.
c#t#d# derives from ioscan output: c# is the card instance number
for the ext_bus class of interface card to which the tape drive is
attached, t# is the SCSI address, d# is the device number. BEST
represents the operational capabilities likely to be required, including
the highest density/format and data compression, if supported by the
device. [b|n|nb] designates tape positioning: b is Berkeley-style;
that is, after file close, the tape is not repositioned in any way. If b is
not designated, AT&T-style tape closing occurs; that is the tape might
be positioned after the end-of-file (EOF) point. n designates no
rewind.
d. Naming convention for systems installed with short file names. For
c#t#d#, see footnote 100. f# represents the highest density/format
and data compression, if the device supports it. Or, i# represents a
pointer into a tape-device property table. For [b|n|nb], see footnote
100.
e. Syntax available for backward compatibility. # designates tape drive at
# card instance. The #m, #mb, #mn, and #mnb device special files are
linked to c#t#d#BEST, c#t#d#BESTb, c#t#d#BESTn, and
c#t#d#BESTnb, respectively.
f. Specifying scsi2 causes cio_ca0, sio, pfail, and pa drivers to be
included automatically in the kernel.
g. Specifying tape2 causes tape2_included to be included
automatically in the kernel.
h. Tape drives listed in footnote 1 are supported on Series 800 HP-PB
architecture, as are A2311A and A2312A. StorageTek models 4220
and 4280 tape drives will also configure successfully using the HP-PB
single-ended SCSI device driver; however, these tape drives must be
the only peripheral device on their SCSI bus.
i. Specifying scsi1 causes sio, pfail, and pa drivers to be included
automatically in the kernel.