"Carl D. Blake" <[EMAIL PROTECTED]> wrote:
 >I would prefer to let amanda handle the scheduling.  I'm just having
 >trouble figuring out a reasonable configuration where I can get weekly
 >full backups as well as monthly (or every 4 weeks) full backups that I
 >can archive for a year.
 >
 >You mention that your archive config runs once a week and does monthly
 >backups for each filesystem.  Is that configuration something like:
 >      dumpcycle 0
 >      runspercycle 4
 >      tapecycle 52
 >where dumpcycle 0 tells amanda to perform full backups every time,
 >runspercycle 4 tells amanda to put the full backups on 4 tapes, and
 >tapecycle 52 provides enough tapes for a year?

Actually, the archival config is more like:
  dumpcycle    4 weeks    # 1 full backup / month
  runspercycle 4          # 12 dailys + 2 archives / fortnight
  tapecycle    1000 tapes # the number of tapes in rotation
(We don't recycle the archival tapes.  It may be time to bump up the
1000, come to think of it.) The dumptypes have:
  record no
  skip-incr yes

The daily config is something like:
  dumpcycle     2 weeks   # 1 full backup / fortnight
  runspercycle 12         # 12 dailys + 2 archives / fortnight
  tapecycle    20 tapes   # the number of tapes in rotation
 
 >Also, how many tapes do you use for your daily config?  Is it enough to
 >cover an entire month?

20, which isn't quite enough.  Since most of the
I-deleted-something-I-shouldn't-have restores are handled by the Network
Appliance's snapshots, our backups are mostly for minor disaster
recovery (disk failure and the like) and we only need tapecycle >
runspercycle.

Tommy McGuire

Reply via email to