Solved
How does Netbackup create a filelist to backup?
My colleague and I were under the impression that when a client backup starts, the Netbackup reads files from the clients to determine what to backup (whether full or inc), then creates a filelist to backup. Once that filelist is created, ONLY those files on the filelist gets backed up. Any NEW files created AFTER the filelist was created will NOT get backed up until the next scheduled backup.
But this is not what we are seeing on a Windows client. We see a file created/modidied hours after the backup has started, yet it gets included in the backup to tape.
In this example, the file was created on 2009, 7/21 0400 and the backup started at 7/21 01:40:
file name backup date modified date
xxxx_LOG_SLS_200907210400.TRN Tue Jul 21 01:40:07 CDT 2009 Tue Jul 21 03:00:06 CDT 2009
How is this possible? Please advise.
Thanks!
But this is not what we are seeing on a Windows client. We see a file created/modidied hours after the backup has started, yet it gets included in the backup to tape.
In this example, the file was created on 2009, 7/21 0400 and the backup started at 7/21 01:40:
file name backup date modified date
xxxx_LOG_SLS_200907210400.TRN Tue Jul 21 01:40:07 CDT 2009 Tue Jul 21 03:00:06 CDT 2009
How is this possible? Please advise.
Thanks!
- Hi there,
NetBackup doesn't create a filelist - it just backups up whatever is theer when it gets to it. So if you have 10 files 1,2,3,4,5,6,7,8,9,10 and delete say file 5 when it's on file 4 it will continue and not error.
There is if I recall correctly an exception - rman / oracle backup using the agent - as oracle "most certainly" needs all the files in the backup to be backed up together, NBU makes a list of what's there - if anything gets deleted before it is written to tape or whatever, it should error.
Martin
