Path: utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!rutgers!att!cbnewsi!plb
From: plb@cbnewsi.ATT.COM (peter.l.berghold)
Newsgroups: comp.sys.hp
Subject: Re: HP-UX and backups
Message-ID: <1611@cbnewsi.ATT.COM>
Date: 9 Jan 90 16:26:46 GMT
References: <1025@prlhp1.prl.philips.co.uk>
Organization: AT&T Bell Laboratories
Lines: 53

From article <1025@prlhp1.prl.philips.co.uk>, by pearmana@prl.philips.co.uk (Andy Pearman):
> Hi,
> 
> Can anyone please give me some advice.
> 
SURE!
> I have an HP9000-350 running HP-UX 6.21
> 
 	[ stuff deleted describing a multivolume disc system 
	  and refrences to backup,dump,etc. ]

On the 3xx system that I adminster I use a backup system as follows:

	INCREMENTALS:

I have a directory under root called /inc.  In /inc are created some 
compressed cpio format files which contain the files that have changed 
in a 24 hour period ( find /dir -mtime -1 ....).  These are pushed off to
tape and deleted about once a week, depending on how large they become.
Instead of searhing from root as most folks do, I implicitly search from 
a list of directories at the root level (/users /usr /etc hp-ux SYSBCKUP) 
or specify files at the root level that need backing up.

	ARCHIVALS:

For archival backups I do something similar only (natch) without specifing 
the time frame (no -mtime).  The command string looks something like:

	find `cat Fsys.List` -depth -print |
	cpio -ocvB |
	compress - |
	tcio {I forget the darn options} /dev/ct0

Doing this, I can get the entire contents of a 7958 and 7912 disk drive 
on ONE tape.


Now for the holes that I can see in my own strategy.  If the system that I 
adminster was a very busy one, the /inc files would get ridulous in a hurry.
Even being compressed.   Solution: use an autochanger tape drive and write 
them directly to tape.



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