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From: merlin@hqda-ai.UUCP (David S. Hayes)
Newsgroups: comp.unix.wizards
Subject: Re: Dynamic dump level selection.
Message-ID: <476@hqda-ai.UUCP>
Date: Thu, 22-Oct-87 22:45:47 EST
Article-I.D.: hqda-ai.476
Posted: Thu Oct 22 22:45:47 1987
Date-Received: Sun, 25-Oct-87 09:53:56 EST
References: <161@erialfa.UUCP>
Organization: Army AI Center, Pentagon
Lines: 31
Keywords: backup dump
Summary: Use analysis routines from agef

In article <161@erialfa.UUCP>, kjelle@erialfa.UUCP (Kjell Eriksson) writes:
> The goal is to keep the incremental backups on as few levels as
> possible and one tape per night.
> 
> The Problem:
> 
> As the activity increases the risk of running out of tape also
> increases. 
> 
> How do I determine which the lowest dump level is, that fits on one
> tape.  I also want to know if I can't fit any dump into only one tape
> and if so, switch to a manual backup.


     Strip out the analysis routines from agef (see note).  These
routines can scan through your directories once, and sort the
files into different groups according to date of last change.  It
keeps a total of the sizes.  You can define the buckets as you
wish.  By defining them to be the date of the last level 0,1,2...9
dumps, it can tell you which dumps will fit on your tape.

Note: agef was originally designed to assist in management of news
spooling space.  It was published in comp.sources.unix, in volume
10 issue 100.  For those with Arpanet access, agef is available
from the sources archives on UUNET.UU.NET.  For those with only
UUCP access, I maintain a small archive available by anonymous
UUCP.  Email me for instructions.

-- 
David S. Hayes, The Merlin of Avalon	PhoneNet:  (202) 694-6900
UUCP:  *!uunet!cos!hqda-ai!merlin	ARPA:  ai01@hios-pent.arpa