I would also recommend archiving. You might also take a look at a paper I
wrote discussing this issue:
http://www.storsol.com/cfusion/template.cfm?page1=wp_whyaisa&page2=blank_men
u
Archive makes a lot of sense, but perhaps you don't archive "everything" but
rather only those things you are required to archive. For instance, two
year old copies of electronic mail are not a good idea. See DOJ vs.
Microsoft.
Backupsets are OK, but are sometimes wieldy. Anybody with experience
generating these for large quantities of data might share their experiences.
I worked with a customer recently that was trying this approach. They had
two problems: too many tape mounts and a too small library. Not all of the
tapes were available in the library so operations was involved. Yuck.
The bottom line is trying to make TSM act like a Grandfather, father, son
backup tool is difficult. It's perhaps easier to rethink why some stuff is
kept for long periods of time.
Kelly J. Lipp
Storage Solutions Specialists, Inc.
PO Box 51313
Colorado Springs CO 80949-1313
(719) 531-5926
Fax: (240) 539-7175
Email: [EMAIL PROTECTED] or [EMAIL PROTECTED]
www.storsol.com
www.storserver.com
-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED]]On Behalf Of
Jack McKinney
Sent: Tuesday, August 14, 2001 8:38 PM
To: [EMAIL PROTECTED]
Subject: Re: Archiving vs. Incremental strategy
Big Brother tells me that Eduardo Martinez wrote:
> Im trying to define a backup strategy that involves backing up my boxes
> on a daily, weekly, monthly (full) and yearly (full) basis.
> Daily backups will last only 3 days, weekly ones only three weeks,
> monthly 3 months and yearly 3 years (because of taxes purposes).
>
> Is it a good strategy to mix archiving and incremental back ups with
> this schema?
> Since monthly and yearly are the ones which last more, will it be
> convinient to archive these, and do an incremental on the other ones?
>
> I havent used too much the archive option, so I havent seen a real
> useful usage of this option.
A lot depends on how much data you actualy have, but...
I would recommend that you do regular incremental backups of your
data, and periodically make backupsets of your nodes (see GENERATE
BACKUPSET). Alternately, you can EXPORT NODE FILEDATA=ALL all of your
nodes to a set of tapes, which you can then date and store.
Either of these will give you point in time restores to any point
in time in which you exported or made a backupset.
--
"There is no parameter that makes it impossible Jack McKinney
for you to perform still more excellently." [EMAIL PROTECTED]
-Mario Cuomo, on the lack of a clock in baseball
http://www.lorentz.com
1024D/D68F2C07 4096g/38AEF076
