chewychewy (1/15/2013)

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Hi Guys,

Just curious will point in time recovery work in this case?

(1) Monday 2am - Transaction log backup via maintenance plan to disk
(2) Monday 7pm - full backup via maintenance plan to disk
(3) Monday 10pm - full backup to tape via 3rd party backup software, eg: backup exec, arc serve
(4) Tuesday 2am - Transaction log backup via maintenance plan to disk

Tuesday 3am - Users complain and want us to perform point in time recovery till tuesday 2am due to some data error.


If this is the case, can i use the full backup (2) with the transaction log taken at (4) to perform point in time recovery? I can't get (3) as the tape has some problem.

thanks

chewychewy (1/15/2013)

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thanks Lynn.
Have u used backup exec or arc serve before?

1. Daily full backup via backup exec to tape at 9pm.
This tape will be send offsite for safe keeping.
2. Daily full db backup to filesystem via SQL Maintenance Plan at 9pm
3. 5 hourly interval db transaction logs backup via backup exec to tape.
This tape will be onsite

I heard with this, I can't do point in time recovery using option 2 and 3.
Seems like backup exec doesn't have an option to restore the transaction logs to file system, for us to
using it with option 2.

Any idea?
thanks

chewychewy (1/15/2013)

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Hi Lynn,

What do u think of this article?
http://www.symantec.com/business/support/index?page=content&id=TECH58674


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This issue occurs because the Log Sequence Number (LSN) for SQL is reset by the other backup application. So subsequent differential or log backups performed by BEWS are relative to the other backup application instead of the original BEWS Full backup. The subsequent differential or log backups are thus rendered unrecoverable by BEWS, because it is unable to use the backup sets created by the other backup application.



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thanks