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 Back-up perfomance

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Posted - 2001-11-12 : 09:30:37
Deborah writes "We are working with a SQL 7.0 server. Every day a database backup is scheduled for 22:00. Once a week the transactionlog is truncated and backed-up. The application is built in VB and runs on thin clients with loadbalancing Citrix servers.

Yesterday the application using the database experienced performance problems. The transactionlog was so full it started extending itself. This happened 1,5 days after the backup of the transactionlog was done. SQL says that the job was succesful but the log was so full that it couldn't be the case. (a regular week takes +/- 200 Mb a busy week +/- 400 Mb) the log showed 420 Mb after 1,5 days.

backing up the log and database:
Normal backup times: transaction log - 3 minutes
Normal backup times: database - 20 minutes
At the moment: transaction log - 60 minutes (and growing)
At the moment: database log - jumped to 4,5 hrs and last night 10 hrs.

Please could jou tell us where to look for the reason.

Thanks

Deborah"
   

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