Overview
This section of the user’s guide explains the advanced settings of the brutab file. These settings are either numeric or boolean entries. NOTE: These are advanced settings and should only be changed if you are completely competent in your devices specific responses. We do suggest that these settings remain unchanged in your BRUTAB file.
| Name | Type | Meaning |
|---|---|---|
| advance | Boolean | reads/writes advance media even when errors occur (most 9-track tape drives, few cartridge drives) WARNING: do not set if not true! |
| ederr | numeric | errno for end of device reached NOTE: “ederr” should be different than other **err’s |
| eject | boolean | eject media after use (Macintosh style) |
| format | boolean | format media if necessary |
| freer | numeric | errno for read of unformatted media |
| fewer | numeric | errno for write of unformatted media |
| maxbufsize | numeric | maximum I/O buffer size for this device. Is set to 0 if unspecified or no limit. |
| noautoscan | boolean | disables automatic scanning of the archive after creation of an archive **IF YOU SPECIFY THIS BOOLEAN YOU WILL DEFEAT BRU’S AUTOMATIC ERROR CHECKING OF YOUR ARCHIVE. |
| prerr | numeric | errno for partial reads |
| pwerr | numeric | errno for partial writes |
| shmall | numeric | limit on total amount of shm used NOTE: applies only if “-D”, double buffering, is specified when invoking bru. |
| shmcopy | boolean | tells bru that the archive device driver cannot do I/O directly from shared memory. NOTE: applies only if “-D”, double buffering, is specified when invoking bru. |
| shmmax | numeric | limit on size of each shared memory segments NOTE: applies only if “-D”, double buffering, is Specified when invoking bru. |
| Shmseg | numeric | limit on number of shared memory segments NOTE: applies only if “-D”, double buffering, is specified when invoking bru. |
| wperr | numeric | errno for write protected media |
| zrerr | numeric | errno for zero length reads |
| zwerr | numeric | errno for zero length writes. |