ADSM-L

Re: Need help on TSM offiste DR setup.

2001-12-05 09:59:32
Subject: Re: Need help on TSM offiste DR setup.
From: "Mr. Lindsay Morris" <lmorris AT SERVERGRAPH DOT COM>
Date: Wed, 5 Dec 2001 09:55:29 -0500
Actually, the third party product (good product) is called AutoVault -
See their banner ad at www.adsm.org.
Good to support companies that support this list.

> -----Original Message-----
> From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU]On Behalf Of
> Kevin Sawyer
> Sent: Wednesday, December 05, 2001 7:19 AM
> To: ADSM-L AT VM.MARIST DOT EDU
> Subject: Re: Need help on TSM offiste DR setup.
>
>
> What I would do is simply this:
>
> Keep the backups and archives separate, and consider this:
>
> Set-up a policy for each server that requires different rules.
> Keep point in
> time backups for as long as is practical on each management class. You can
> even separate the management classes into different storage pools to help
> keep things straight. A low retention pool could be on disk even.
>
> Then, choose the client nodes that have a requirement for archive. Assess
> archives carefully so as to cut costs if possible. Then, you can extract a
> 'snapshot of data' from existing backup pools using create backup
> sets, and
> catalogue them using a 3rd party product called Code Relief. I use this
> method and run the archives on Saturday. It gives me the latest data for
> that week, and I end up with a 52 week x 7 year archive. You could easily
> make this happen daily, but the advantage is that I don't tax the
> SAN/LAN/WAN for archives, the archives can be restored without the server
> (LAN-less) and Code Relief is ALOT less than DRM (DRM doesn't catalogue
> backup sets, and code relief does), and performs all the same disaster
> recovery conventions. The down-side is that code relief only runs
> on Windows
> (ack!) but it can work with an AIX server via ODBC.
>
> Dunno if that helps, but anything is better than losing the incremental
> forever paradigm (imho).
>
> Good Luck!
>
> Kevin.
>
> -----Original Message-----
> From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU]On Behalf Of
> Seay, Paul
> Sent: December 5, 2001 1:26 AM
> To: ADSM-L AT VM.MARIST DOT EDU
> Subject: Re: Need help on TSM offiste DR setup.
>
>
> First of all, the 5 year requirement is probably a business
> requirement from
> some financial people or legal department.  The question becomes what
> granularity of recovery they want.  I presume you run daily backups.  So,
> lets say for a minute that all data revisions must be kept for 5 years.
> That would require up to 5 x 365 versions and an expiration of 5 years.
> Now, if you are doing INCR type backups remember the files only get backed
> up on every change.  If you are doing SELECTIVE you may want to reconsider
> to reduce the number of backups.
>
> Now for the piece you may not have considered.  The business may also need
> to keep the deleted versions for 5 years.
>
> Too often as technicians we start compromising the amount of data kept
> without having the proper knowledge or backround to make the cut-back
> decision.  Let's take the example of a medical record.  When can I cut out
> some of the information?  The answer is never.  Bank records are similar.
> Engineering changes are similar.  Manufacturing inspection records are
> similar.
>
> The best decision is to go to the business and let them determine
> the legal
> and business requirement.  Design a solution and tell them what it cost.
>
> Consider your old paradigm.  After 1 month, all the daily revisions are
> lost.  After 60 days, you have only the monthly revision snapshot
> (what good
> is that?).  Ask your business the right questions and you will be able to
> design a matching solution with TSM.  The closest you can probably get to
> what you were doing before is Backup Sets.
>
> Your email should be put in a different management class.  That is easy to
> do, depends on the email system and which TDP you need.
>
> Good Luck.
>
> -----Original Message-----
> From: LY, Tuan (Kanata) [mailto:TLY AT MDS.NORDION DOT COM]
> Sent: Tuesday, December 04, 2001 11:08 AM
> To: ADSM-L AT VM.MARIST DOT EDU
> Subject: Need help on TSM offiste DR setup.
>
>
> Hi All,
>
> We are currently using TSM 4.1.1 ( dual CPU) on AIX 4.3.3 with the 3584
> Lib.I have recently completed the migration of all the servers backup from
> Arcserve to TSM. I would like to get inputs on how to implement the TSM
> policy vs the old Arcserve traditional backup method. On the TSM, we have
> setup two primary diskpools, collocated (82 GB) and non-collated
> (24 GB) and
> one copy pool for offiste storage (TSM DRM).
>
> 1) Old days Arcserve backup :
>     Daily - keep 30 days
>     Weekly - 1 month
>     Montly - 7 years
>     Yearly - forever
>
> What happened is most of the sysadmin did not give me a clear direction on
> the policy. All they say was  keep the backup strategy as before
> ( mentioned
> above ) . And on TSM, they want to be able to restore any copy of file
> within the 5 years time frame which I think is too much. Right now, I'm
> backing up about 30 servsers with the policy of keeping almost everything
> for 5 years.The nightly backup data transfer is about 70 GB. However there
> are 50 GB of data that is belong to mail database which I don't
> need to keep
> for 5 years but I still need to keep the monthly one for two
> years and daily
> for 30days.
> Right now, the TSM has been running just over a year and I can see my
> offsite copy tapes are increasing. This doesn not help for lowering the
> offsite storage cost and also my DB vol is getting full (4 GB 70
> % utilized)
> which is fill up quicker that I have planned. I heard that there is a
> limitation on TSM 4.1.1 that the log vol can not growth bigger that 4 GB ?
>
> My question is, instead of sending out 70 copy pool tapes for offiste
> storage. What is the best way to setup with the TSM policy like the old
> backup method mentioned above and be able to make a copy of full backup of
> all the servers at the most current state and put them on a set
> of tapes and
> send them offsite as for fulll backup and for DR purpose as on the weekly
> basis. My goal is to have a copy of all the most recent copy of
> full backup
> on all servsers and  instead of having 70 tapes sitting offsite, with the
> proper setup, I only need to send let say 20 tapes offsite on the weekly
> basis. Since I have only two days of windows on the weekend, I'm
> not sure if
> I can have all the server's full backup done on time for Monday
> to send them
> offsite. So, what is the best way to implement, backup sets, archive, or
> image backup ? Do I have setup a third and fourth stgpool (Archive and
> monthly) ? Will any of these method help to lower the tape usage and
> verions. ( Instead of keeping everyting for 5 years, and if the
> weekly full
> backup work, hopefully I can lower the retention of files and
> versions from
> 5 years down to 2 years or even can apply shorter retention time better
> versioning control).
>
> OS Platform :
>
> TSM CLIETN 4.1.2.19 for  NT 4, WIN2K
> TSM CLIENT 3.7 for  HP-UX 10.2
>
> Thanks for your time and your input will be greatly appreciated.
>
> Tuan Ly
> MDS Nordion
> tly AT mds.nordion DOT com
>
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