Please consider moving this question to the proper forum for maximum visibility. Questions written to the users' own "Discussions" space don't get the same amount of attention and questions can go unanswered for a long time. You can do so by selecting "Move" under ACTIONS along the right. Then search for and select: "NetWorker Support Forum" which would be the most relevant for this question. There is also a recent post demonstrating the steps to do the same:
There is no way to migrate data from one BU application to another. So best practice is really to have the old backup system available for recoveries as long as necessary.
DD is very beneficial - very fast (disk) and easy to handle. Of course the dedupe capabilities depend on your data.
However, for a 5y retention time it would be to expensive to store all data. So best practice would be D2D2T or just clone a fraction of the backups (for example, monthly fulls), if possible.
I face same challenge in one country we operate as we speak (also TSM2NW). Anyway, I have seen folks taking whole DB backups for part of DB (smaller part) that needs longer protection so I plan to stop it. If anything needs to be saved longer than operational backup retention, it will need to be exported and specific data set. Even when whole DB needs to be protected, it will exported as I do not wish to have Stockholm syndrome in the future - with DB export I can import it easily to any future platform my company wishes to use in future. So, if you plan to migrate existing TSM backups, you may wish to use the same approach. As to where to put it, it all comes to frequency of usage. Disk is easier for sure, but also more expensive as it is online media. If you would use combo of DD archiving and backup, I would say just use DD, but other than that you probably wish to use existing tape infra. In my case I would use DD as I have two and can easily mirror backup sets and have it exported to tape to store 3rd copy to secure location outside 2 existing DCs.
christopher_ime
4 Operator
•
2K Posts
1
June 26th, 2013 00:00
Harshal,
Please consider moving this question to the proper forum for maximum visibility. Questions written to the users' own "Discussions" space don't get the same amount of attention and questions can go unanswered for a long time. You can do so by selecting "Move" under ACTIONS along the right. Then search for and select: "NetWorker Support Forum" which would be the most relevant for this question. There is also a recent post demonstrating the steps to do the same:
EMC Community Network Frequently Asked Questions
bingo.1
2.4K Posts
0
June 26th, 2013 01:00
There is no way to migrate data from one BU application to another. So best practice is really to have the old backup system available for recoveries as long as necessary.
DD is very beneficial - very fast (disk) and easy to handle. Of course the dedupe capabilities depend on your data.
However, for a 5y retention time it would be to expensive to store all data. So best practice would be D2D2T or just clone a fraction of the backups (for example, monthly fulls), if possible.
ble1
4 Operator
•
14.4K Posts
0
July 1st, 2013 03:00
I face same challenge in one country we operate as we speak (also TSM2NW). Anyway, I have seen folks taking whole DB backups for part of DB (smaller part) that needs longer protection so I plan to stop it. If anything needs to be saved longer than operational backup retention, it will need to be exported and specific data set. Even when whole DB needs to be protected, it will exported as I do not wish to have Stockholm syndrome in the future - with DB export I can import it easily to any future platform my company wishes to use in future. So, if you plan to migrate existing TSM backups, you may wish to use the same approach. As to where to put it, it all comes to frequency of usage. Disk is easier for sure, but also more expensive as it is online media. If you would use combo of DD archiving and backup, I would say just use DD, but other than that you probably wish to use existing tape infra. In my case I would use DD as I have two and can easily mirror backup sets and have it exported to tape to store 3rd copy to secure location outside 2 existing DCs.