IBM
000-221 · Question #17
000-221 Question #17: Real Exam Question with Answer & Explanation
The correct answer is B. The files in the directory are larger than 2GB.. The AIX backup command cannot handle individual files larger than 2GB when reading filenames from stdin via the -i flag, causing those files to be silently skipped.
Question
The system administrator ran the following command to backup his image repository, but nothing was backed up to the file. Why? find /media -print | backup -I-f-p /dev/rmt0
Options
- AThe block size was not specified.
- BThe files in the directory are larger than 2GB.
- CThe tape was not positioned the beginning of the tape.
- DThe tape was not formatted.
Explanation
The AIX backup command cannot handle individual files larger than 2GB when reading filenames from stdin via the -i flag, causing those files to be silently skipped.
Common mistakes.
- A. The backup command does not require an explicit block size argument for tape operations; a default block size is used automatically.
- C. Tape positioning affects where data is written on the tape but would not cause the backup to produce no output at all - it would write data at the current position.
- D. The AIX backup command writes its own tape format and does not require the tape to be pre-formatted before use.
Concept tested. AIX backup command 2GB file size limitation
Reference. https://www.ibm.com/docs/en/aix/7.3?topic=b-backup-command
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