Hi Ranjan, I think it's useful to mention that Amanda schedules on its own the full backups and incremental backups based on the backup history. The first time Amanda runs during a 'dumpcycle', assuming a good config, it will do a full backup of the DLE's you've specified.
Knowing this, a 'dumpcylce' is the period of time during which you'll get at least 1 full backup, followed usually by a number of incrementals (the number depends on the 'runspercycle' parameter). What will be your data retention policy? 1 week? 2 weeks? For your config, I'd use: dumpcycle 1 week runspercycle 1 tapecycle 3 runtapes 1 Explanation: runspercycle: I chose 1, because it will be one run of Amanda a week on a Saturday. runtapes: I chose 1, assuming all your data fits on 1 tape. If it doesn't you'll need to increase this number. Note that Amanda will use as many tapes as it will need. If you have specified 7 tapes and it only needs 3, it will use 3. tapecycle: I chose 3, assuming that you have 3 tapes available, that your full backup fits on 1 tape, and that you want to keep your data for 2 weeks. After 3 tapes have been written, Amanda will re-use the oldest tape (from 2 weeks ago). Please see the man page for amanda.conf here, which is very important: http://wiki.zmanda.com/man/amanda.conf.5.html Best, Valeriu On Thu, Aug 26, 2010 at 03:30:31PM +0530, Ranjan Das wrote: > Hi all, > > What are the values for dumpcycle,runspercycle,tapecycle, and runtapes for a > weekly backup?? > This backup will be triggered only on saturdays and it should be full > backup. > > Thank you. -- Valeriu Mutu
