Amanda-Users

Re: Ramifications of dump cycle and number of tapes choices

2004-01-13 10:20:03
Subject: Re: Ramifications of dump cycle and number of tapes choices
From: Gene Heskett <gene.heskett AT verizon DOT net>
To: amanda-users AT amanda DOT org, Jon LaBadie <jon AT jgcomp DOT com>
Date: Tue, 13 Jan 2004 10:15:14 -0500
On Tuesday 13 January 2004 01:24, Jon LaBadie wrote:
[...]
>In ANY seven consecutive tapes there should be AT LEAST one full
> dump of each disk list entry.
>
>The reason for the "at least" is that amanda tries to balance the
>amount of tape used daily.  To do so it may "promote" a full dump
>before it is needed according to the dumpcycle.

I've got a silly Q myself over this one, and the man page is no
help for this.  But what does it mean when out in the future tense
columns, one gets an 01 or  a 10 or a 1E.  Samples from the rather
lengthy report on my system with 58 LDE's:
---
         date                 12 12 12 12 12 12 12 12 12 12 12 01 01 01 01 01 
01 01 01 01 01 01 01 01
host     disk                 21 22 23 24 25 26 27 28 29 30 31 01 02 03 04 05 
06 07 08 09 10 11 12 13
coyote   /dos                  1  1  1  1  1  1  1  0  1  1  1  0  0  1  1  1  
1  1  1  1  0 01  1  0
coyote   /etc                  1  1  1  1  1  1  1  0  1  1  1  0  1  1  0  1  
1  1  1  1  1 01  1  1
coyote   /lib                  1  1  1  1  1  0  1  1  1  1  1  1  1  0  1  1  
1  1  1  1  1 10  1  1
coyote   /misc/deb1            1  1  1  1  0  1  1  1  1  1  1  1  1  0  1  1  
1  1  1  1  1 1E  1  1
coyote   /misc/deb8            1  1  1  1  1  0  1  1  1  1  1  1  1  0  1  1  
1  1  1  1  1 10  1  1
coyote   /misc/fedora/disk3    1  1  1  1  1  0  1  1  1  1  1  1  1  0  1  1  
1  1  1  1  1 10  1  1
coyote   /rh8.0disks/disk3     1  1  1  1  1  1  0  1  1  1  1  1  1  1  0  1  
1  1  1  1  1 01  1  1
coyote   /root                 1  1  1  2  2  0  1  1  1  1  2  2  2  0  1  1  
1  1  2  2  2 10  0  1
coyote   /sbin                 0  1  1  1  1  1  1  1  0  1  1  0  1  1  0  1  
1  1  1  1  1 01  1  1
---
The odd numbers are all in that same column, these culled from
the report I get here.  Also,
dumpcycle=8, runspercycle=8, tapecycle=28, runtapes=1 ATM.

-- 
Cheers, Gene
"There are four boxes to be used in defense of liberty: soap,
ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
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Copyright 2003 by Maurice Eugene Heskett, all rights reserved.