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Posted Friday, January 02, 2009 11:04 PM
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Database server is on from monday to friday .everyday server starts at 9 A.M and closes at 5 P.M.On my server very huge database is loaded and also server is heavily loaded during it is on (some lakhs of transactions/milli sec will be going on).Data loss has to be minimized to the possible extent/ should be eliminated.

performance is a criteria.
can any one try out how to schedule backup?
Post #629207
Posted Friday, January 02, 2009 11:23 PM
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Hello,

IF no DB updates are being made between 5:00pm and 9:00am then a Full DB backup during this period would be appropriate. Probably start after EOD to ensure it is well finished by the next day.

You also need to schedule regular Transaction Log backups during the working day - may be every 5 or 10 minutes. It depends on the maximum data loss that is acceptable and how big the Transaction Log can be allowed to grow to.

You could also consider Differential Backups during the working day - may be every one, or two or four hours. The benefit here is it reduces the number of Transaction Log backups that need to be restored in the event of Disaster Recovery.

Regards,

John Marsh


www.sql.lu
SQL Server Luxembourg User Group
Post #629209
Posted Friday, January 02, 2009 11:34 PM


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davidron_143 (1/2/2009)
(some lakhs of transactions/milli sec will be going on).Data loss has to be minimized to the possible extent/ should be eliminated.

performance is a criteria.


Thats too much of data, more than 100 million records per second!! Trillion of records per day!! Seems only bulk operation is happening here.... I'm just guessing the size of your database... and number disk arrays....

If this is such heavily used database, i dont think plain backup-recovery options would suffice. You must have strong DR solution in place as well.
I think if only bulk data is pushed, bulk-logged recovery model will be suitable.






Pradeep Singh
Post #629212
Posted Saturday, January 03, 2009 2:34 AM
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Hi,

Since you are focussing more on minimising data loss and huge transactions/sec you definetely need Transaction log backups for ever 15-20 minutes depending on how much loss of data your organisation can afford to lose. Then, Differential backups every 1 hour- 2hours and a Full backup during the off peak hours.

So, you need a Robust DR plan.

cheers!
Post #629239
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