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Comments and suggestions concerning this book should be mailed to gmourani@videotron.ca © Copyright 1999-2000 Gerhard Mourani and Open Network Architecture ® 457 7 6 2 1, 2, 5, 7 8 9 1 1, 2, 5, 7, 8 9 8 2 1, 2, 5, 7, 9 10 9 1 1, 2, 5, 7, 9, 10 Making backups with dump It is interesting to use dump backups program if you want to take advantage of his several levels of backup procedures. Bellow, I show you a procedure to have a longer backup history and to keep both the backup and restore times to a minimum. In the following example bellow, we assume that we write the backup to a tape drive named (/dev/st0) and we backup the home directory (/home) of our system. It is important to always start with a level 0 backup, for example: · Friday 1, (use tape 1 for the first full backup). [root@deep /]# dump -0u -f /dev/st0 /home   DUMP: Date of this level 0 dump: Fri Jan 28 21:25:12 2000   DUMP: Date of last level 0 dump: the epoch   DUMP: Dumping /dev/sda6 (/home) to /dev/st0   DUMP: mapping (Pass I) [regular files]   DUMP: mapping (Pass II) [directories]   DUMP: estimated 18582 tape blocks on 0.48 tape(s).   DUMP: Volume 1 started at: Fri Jan 28 21:25:14 2000   DUMP: dumping (Pass III) [directories]   DUMP: dumping (Pass IV) [regular files]   DUMP: DUMP: 18580 tape blocks on 1 volumes(s)   DUMP: finished in 4 seconds, throughput 4645 KBytes/sec   DUMP: Volume 1 completed at: Fri Jan 28 21:25:18 2000   DUMP: Volume 1 took 0:00:04   DUMP: Volume 1 transfer rate: 4645 KB/s   DUMP: level 0 dump on Fri Jan 28 21:25:12 2000   DUMP: DUMP: Date of this level 0 dump: Fri Jan 28 21:25:12 2000   DUMP: DUMP: Date this dump completed:  Fri Jan 28 21:25:18 2000   DUMP: DUMP: Average transfer rate: 4645 KB/s   DUMP: Closing /dev/st0   DUMP: DUMP IS DONE · Monday, (use tapes 2 for the incremental backups). [root@deep /]# dump -3u -f /dev/st0 /home · Tuesday, (use tapes 3 for the incremental backups). [root@deep /]# dump -2u -f /dev/st0 /home · Wednesday, (use tapes 4 for the incremental backups). [root@deep /]# dump -5u -f /dev/st0 /home · Thursday, (use tapes 5 for the incremental backups). [root@deep /]# dump -4u -f /dev/st0 /home · Friday 2, (use tape 6 for the incremental backups). [root@deep /]# dump -7u -f /dev/st0 /home · Monday, (use tapes 2 for the incremental backups). [root@deep /]# dump -3u -f /dev/st0 /home · Tuesday, (use tapes 3 for the incremental backups). [root@deep /]# dump -2u -f /dev/st0 /home