Hi
Only difference between Tivoli and Legato/Veritas in this case is that you
don't want to have to remove tapes from the library every day.
It is fully possible to make, as you put it, full backups so that you can
create a point-in-time backup. If you would like to be able to restore any
file, any time within 12 months, you'd probably have versions exist 365,
keep extra version 365, keep only version 30.
This would give you the same function(or problem as I would describe it) as
veritas/legato, and you would be forced to remove tapes from your library.
Also, this would force you to transfer all information on a nightly basis
over the LAN, something that is probably impossible if you have enough
information. Who would like to transfer +4TB of data every night over the
LAN?
You can also do as Legato/veritas; full backups every night, and then set
the tapes off-site, put in new tapes, and do the next full backup.
However, this is not to solve the policy problem. The easy way is to do as
Legato/veritas, and do full backups. The hard way, which works better when
you have gotten it in place, is to, instead of keeping tapes off-site, try
to figure out what FUNCTION you're organisation requires. If you could get
your users to tell you, what their requirements are, it would probably be
easier to set up the policy.
Another solution to you're problem would be to use backupsets. You could
create backupsets on a weekly- monthly and yearly basis, and make it
possible to do point-in-time backups, in this case point-in-time
backupsets.
A backupset is a snapshot image of all active versions of data from a
specific server(which not includes extra versions). This is just like a
full backup. However, TSM can create this full backup from data already
stored in the library. This means you don't have to transfer data over the
LAN.
Best Regards
Daniel Sparrman
-----------------------------------
Daniel Sparrman
Exist i Stockholm AB
Bergk�llav�gen 31D
192 79 SOLLENTUNA
V�xel: 08 - 754 98 00
Mobil: 070 - 399 27 51
Cheri Howard
<Cheri_Howard@AAL To: [EMAIL PROTECTED]
.ORG> cc:
Sent by: "ADSM: Subject: Re: Point in Time Backups
Dist Stor
Manager"
<[EMAIL PROTECTED]
.EDU>
2002-03-11 15:13
Please respond to
"ADSM: Dist Stor
Manager"
I appreciate all of the ideas that were posted on the list, and will send
an update out to the group when we make our final decision on how to handle
this.
For those on this who think PIT restores are the answer.... While I
certainly see the value in PIT restores and in fact use them myself, I
disagree with the anecdotal statement that PIT restores can completely
eliminate the need for point in time backups. However, if I'm missing
something here I'd be happy to listen to anyone who can give me a DETAILED
layout of how to EASILY set up MANAGEABLE policies so that I can ensure my
customer that I can get his directory back for him as it looked 1, 3, 12 or
15 months ago.
Tivoli - this is definitely an ISSUE with your customers. Is this ever
going to be addressed?
Thanks,
Cheri Howard
Lead Storage Analyst
Aid Association for Lutherans/Lutheran Brotherhood
4321 N. Ballard Road, Appleton, WI 54919-0001
http://www.aal.org
"Thomas A. La Porte"
<[EMAIL PROTECTED] To: [EMAIL PROTECTED]
WORKS.COM> cc: (bcc: Cheri
Howard/AAL)
Sent by: "ADSM: Dist Subject: Re: Point in
Time Backups
Stor Manager"
<[EMAIL PROTECTED]
U>
03/07/2002 03:42 PM
Please respond to
"ADSM: Dist Stor
Manager"
If you manage your RETVER and VEREXISTS and RETONLY parameters
properly, this can be accomplished with point in time *restores*,
rather than point in time backups.
-- Tom
Thomas A. La Porte
DreamWorks SKG
[EMAIL PROTECTED]
On Thu, 7 Mar 2002, Cheri Howard wrote:
>I have numerous customers who are requesting that, in addition to their
TSM
>daily incremental backups, I also provide them with "point in time"
>backups of their data on significant days like month end, quarter end,
etc.
>
>I would guess there are numerous ways this can be accomplished with TSM.
>I'm looking for input from those who are doing this successfully and would
>be willing to share what method they're using to accomplish this and the
>pros and cons of their chosen method.
>
>Thanks in advance for your input!
>
>Cheri Howard
>Lead Storage Analyst
>Aid Association for Lutherans/Lutheran Brotherhood
>4321 N. Ballard Road, Appleton, WI 54919-0001
>http://www.aal.org
>
