Hi Valeriu, Thank you very much for the guidance. This was very much informative. I have another doubt, as this configuration is for weekly backup and if i start using this config daily what will happen?? Or in the other way, if we schedule daily backups and we dont do it daily and does it at a random fashion what will happen, will there be any problem with the integrity of data. What are the consequences that will arise if we miss out the correct timing.?
What i mean to ask is for a weekly backup in which the dump shoud be a full dump why cant we use the configuration something like this. dumpcycle 1day runspercycle 1 tapecycle 3 runtapes 1 ?? Please guide me. Thank you once again for the help and i would like to know the materials you referred other than the amanda wiki. On Fri, Aug 27, 2010 at 8:22 AM, Valeriu Mutu <[email protected]> wrote: > 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 >
