User manual QUANTUM DLT1SOLARISSPARC2X

[. . . ] Solaris includes a driver to efficiently communicate with SCSI tape drives, such as the DLT tape peripheral. Perform the installation as follows: · Shut down the SPARCstation and remove ac power from the system. Install the DLT tape peripheral and connect it to its SCSI controller. Refer to the following manual for switch and jumper settings and SCSI bus termination: DLT1/DLT7 Install and Operations Guide · Set the DLT SCSI device address to an unassigned ID. [. . . ] This is defined in /usr/include/sys/mtio. h. The third parameter, 0, is the block size. Since the DLT tape drive uses variable block size, this value should be zero. The fourth parameter, 0x8639, is a summation of values that represent selected device options. The table below lists the options and the corresponding value: Option ST_VARIABLE ST_BSF ST_BSR ST_LONG_ERASE ST_KNOWS_EOD ST_UNLOADABLE ST_NO_RECSIZE_LIMIT Value 0x0001 0x0008 0x0010 0x0020 0x0200 0x0400 0x8000 The st man page has more information about these and other possible device options. For certain applications, it may be necessary to consider adding or removing one or more of the device options. · · The fifth parameter, 4, defines the number of densities. The maximum definable number of densities is 4. The sixth, seventh, eighth and ninth parameter are used for system selection of tape densities. Although the entries described above are recommended, other density entries are possible. The following list describes the density codes used with this set of parameters. Refer to the product manual for the drive you are installing for additional density code information. 0x40 0x86 0x87 Default DLT1 density. 40 GB compressed mode, vender unique density code for a DLT1 drive loaded with DLTtape IV media. 20 GB uncompressed mode, vender unique density code for a DLT1 drive loaded with DLTtape IV media. 40 GB compressed mode, vender unique density code for a DLT1 drive loaded with DLTtape IV media. 0x7F No change from previous density. (NOP) The tenth parameter, 0, defines which density the system will use as the default density. The sixth, seventh, eighth and ninth parameters in the <DLT data>string are referenced by the system as 0, 1, 2 and 3, respectively. The 0 value for the tenth parameter selects the 0x40 density code as the system default density. [. . . ] [n] No rewind when command is complete. As an example, listing the device files in /dev/rmt for the first drive assigned by Solaris would be similar to the following: ls /dev/rmt/0* /dev/rmt/0 /dev/rmt/0b /dev/rmt/0bn /dev/rmt/0c /dev/rmt/0cbn /dev/rmt/0cn /dev/rmt/0h /dev/rmt/0hb /dev/rmt/0hn /dev/rmt/0l /dev/rmt/0lb /dev/rmt/0lbn /dev/rmt/0m /dev/rmt/0mb /dev/rmt/0mbn /dev/rmt/0mn /dev/rmt/0u /dev/rmt/0ub /dev/rmt/0ubn /dev/rmt/0un /dev/rmt/0cb /dev/rmt/0hbn /dev/rmt/0ln /dev/rmt/0n NOTE: The target drive designations assigned by Solaris may take on values higher than already established in the /dev/rmt/ path. This is not a problem but during a boot -rv, Solaris does not remove tape device files for drives that are no longer attached to the system. This can increase the effort in locating the device file for the configured drive, however, this can be minimized by first deleting the tape device files, rm /dev/rmt/*, then either boot the system with a boot -rv or issue the following at the command line prompt: drvconfig -i st; tapes If the DLTtape is the only drive on the system, it's target assignment should be zero. The Solaris man pages have more information on drvconfig and tapes. DLT Mini-Library Usage The Solaris operating system does not support SCSI-2 media changer device commands. [. . . ]