Product Notes for Sun
D-7
Compaq Confidential – Need to Know Required
Writer: Everett Godaire Project: TL891 MiniLibrary System User's Guide Comments:
Part Number: ER-TL891-UA.A01 File Name: k-appd Product Notes for Sun Last Saved On: 3/1/99 2:18 PM
“rst” format
Special files “rst” (rewind on close) and “nrst” (no rewind on close) are also
built and reside in the /dev directory. For example, if the SCSI target ID for
the drive is 4 and the drive is connected to the native SCSI bus, then “rst” will
be “rst4, rst12, rst20, and rst28” and nrst will be “nrst4, nrst12, nrst20, and
nrst28”.
■
rst4 and nrst4 correspond to the 0x82 density mode (CT-IV, native
format)
■
rst12 and nrst12 correspond to the 0x83 density mode (CT-IV,
compressed format)
■
rst20 and nrst20 correspond to the 0x84 density mode (CT-IV, native
format)
■
rst28 and nrst28 correspond to the 0x85 density mode (CT-IV,
compressed format)
Where:
CT-IV = CompacTape IV Data Cartridge
Test
To test the TZ89 DLT Cartridge Tape Drive, back up the “passwd” file to
tape using the “tar” command, as follows:
tar cvf /dev/rst4 /etc/passwd
The system responds with:
a /etc/passwd 1 blocks
NOTE:
depending on the size of the file, a different number of blocks may be reported.
Verification
Verify that the “passwd” file was saved to tape using the following command:
tar tvf /dev/rst4
The system responds with
/etc/passwd