Amanda-Users

Re: dumpcycle / runspercycle / tapecycle best practices?

2004-11-03 17:05:38
Subject: Re: dumpcycle / runspercycle / tapecycle best practices?
From: Jon LaBadie <jon AT jgcomp DOT com>
To: amanda-users AT amanda DOT org
Date: Wed, 3 Nov 2004 17:02:02 -0500
On Wed, Nov 03, 2004 at 10:53:59PM +0100, Jukka Salmi wrote:
> Hi,
> 
> Erik Anderson --> amanda-users (2004-11-03 14:44:55 -0600):
> [...]
> > full backup every night.
> [...]
> > dumpcycle 1 day
> 
> According to the amanda man page you should set dumpcycle to zero to
> get full dumps each run.
> 
> Hmm, when setting dumpcycle to zero, to what value should runspercycle
> be set if amdump runs once a day? Zero ("same as dumpcycle") or one?
> Does it matter at all?

Good point, one advantage the minor situation that you run a second
amdump in the same day.  With dumpcycle 0 days you are certain to be
due for full dumps again.

BTW on the tapecycle, an advantage of having more tapes in cycle than
the number listed in amanda.conf is the occasional need to take a tape
out of rotation.  Bad or damaged tape, temporary or permanent archiving,
or whatever.  Having more tapes in rotation than the tapecycle count
means you do not have to amlabel a new tape right then and there.

-- 
Jon H. LaBadie                  jon AT jgcomp DOT com
 JG Computing
 4455 Province Line Road        (609) 252-0159
 Princeton, NJ  08540-4322      (609) 683-7220 (fax)