On Thu, 16 May 2002 at 4:09am, adi adi wrote > Hello list, i'm a lil confused abt the dump and tape > cycles to put in amanda.conf. This is my situation. I > am dumping everyday, 7 days a week. The tapes are > labelled for week 1 as monday1, tuesday2, wednesday3 > and for the second week would be monday2, tuesday2 and > so on. Would it be right to put "dumpcycle 4 weeks" > "runspercycle 7" "tapecycle 8 tapes" in amanda.conf. > Could anyone explain this for me, thanks much. Btw, i > have 31 tapes for amanda which i will be > overwriting every month.
A "dumpcycle" is the maximum amount of time between successive full dumps (level 0s) of any particular disklist entry. runspercycle is how many times you are going to run amdump per dumpcycle. And tapecycle is how many tapes you are going to use. >From the numbers above, the only thing I can say for sure is that your tapecycle should be 31. You'll have to set dumpcycle depending on how much data you have and how big your tapes are. For example, if all your data can fit on 7 tapes, then you can use "dumpcycle 1 week" and "runspercycle 7". That way you'll have 4 dumpcycles per tapecycle, which offers good redundancy. Finally, you may want to rethink your tape labels. Amanda will tell you which tapes it wants when, and it may not always "match" the day label on the tape, which might confuse somebody. -- Joshua Baker-LePain Department of Biomedical Engineering Duke University
