December 2001
Intermediate to advanced
506 pages
10h 4m
English
book
IBM eServer Certification Study Guide - pSeries AIX System Administration
by Christian Pruett, Kristian Strickland, Scott Vetter
Content preview from IBM eServer Certification Study Guide - pSeries AIX System Administration
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8.7. Special file notes for rmt
The purpose of the device rmt is to provide access to the sequential-access bulk storage medium device driver.
Magnetic tapes are used primarily for backup, file archives, and other off-line storage. Tapes are accessed through the /dev/rmt0, ..., /dev/rmt255 special files. The r in the special file name indicates raw access through the character special file interface. A tape device does not lend itself well to the category of a block device. Only character interface special files are therefore provided.
Table 8-3 is a list of the tape device special file characteristics; /dev/rmt* can be from /dev/rmt0 to /dev/rmt255.
| Special file name | Rewind-on-close | Retension-on-open ... |
|---|
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