Circular logging

[jun29m72]

I have my circular logging on right now for both DS and IS. I'm doing a full backup everyday. I was just wondering, should I leave it on or can I turn it off. Transaction logs are taking up space in my hard drive.

Thanks in advance.
Juns-)

 

[PRW2000]

Completely up to you!

Circular logging just overites the logs when it gets to a certain size as i recall although i think you can tell it not to overwrite these logs until there backed up.

The advantage of these logs is you can restore your public and private databases from them right up untill the point of failure! where as if you only have a backup tape you could potentially lose a days worth of email that is as long as the partition with the logs on it dosen't fail! Well thats the advatage of turning off the circular logging!

The main reason i can think of for leaving it on is because it saves disk space because the logs get overwriten once in a while! But you can get exchange to remove the logs once backed up!


hope this helps

Regards

Peter

 

[jun29m72]

Thanks. When you said I can get exchange to remove the logs once backed up, how do I do that? Do you have your circular logging on?


Thanks again,
jun

 

[PRW2000]

My personal preferance would be to turn circular logging off because you can restore data right up to the point of failure if you do.

straight from ms site when you do a backup the transaction logs are removed see below!

Use the Windows NT Backup utility that ships with Exchange Server to perform either a Normal (full) or Incremental Online backup of the server. The Backup utility automatically deletes transaction logs that are no longer needed (they have been committed to disk). If you never run the Backup utility, log files continue to grow.

 

[jun29m72]

Thanks again PRW2000. I'm using Retrospect Backup with Exchange agent. Will this automatically delete my transaction logs. I am doing a full backup. I guess my question is....does it matter what backup software you use?

Thanks,
Jun