IBM states that once you install journal based backups that they are NOT meant to replace incremental backups. They recommend running a regular old fashioned incremental to make sure all files are backed up on a regular basis ( once a week or once every tow weeks ). Journal based backups are not perfect. If the service goes down on the client or the client reboots ( because that NEVER happens in the Windows ) , and you didn't put the service to auto start or if it doesn't start for whatever reason, TSM will default to running an incremental to save you, so that long backup time for that night will come back for that backup session. Also if TSM detects that the service went down for a short while during the day, then this essentially will have corrupted the flatfile backup list because TSM will not know if any files were updated during that outage . What happens when the next backup runs ? It will not be a journal based backup, but a typical incremental will run.
Rich -----Original Message----- From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED] Behalf Of James Choate Sent: Wednesday, May 07, 2008 2:15 PM To: ADSM-L@VM.MARIST.EDU Subject: Re: [ADSM-L] Journal Engine install on Windows Very cool.................. I can't believe the difference it makes. >From 4 hours to 8 minutes. Unbeleiveable......... When are they coming out with one for Linux? I see only AIX & Windows available. -----Original Message----- From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED] On Behalf Of Kelly Lipp Sent: Wednesday, May 07, 2008 12:11 PM To: ADSM-L@VM.MARIST.EDU Subject: Re: Journal Engine install on Windows No, you are good to go. What that statement assumes is that you installed the Journal Engine before you ever ran the backup and that you shouldn't be surprised to see a longer than normal backup take place. Cool, huh? Those guys at IBM... Kelly Lipp CTO STORServer, Inc. 485-B Elkton Drive Colorado Springs, CO 80907 719-266-8777 www.storserver.com -----Original Message----- From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED] On Behalf Of James Choate Sent: Wednesday, May 07, 2008 12:08 PM To: ADSM-L@VM.MARIST.EDU Subject: [ADSM-L] Journal Engine install on Windows I installed the backup archive client (5.4.2.0) on Windows 2003 Server. I ran a full backup of 2.7 TB. I scheduled the regular incremental backups to run nightly. I noticed that the backup was taking anywhere from 4 - 9 hours to complete. The client was scanning thru approximately 5 million files to backup 40GB - 150GB a night. I installed the Journal engine on the Windows server, and now I notice that I'm spending 8 minutes - 30 minutes a night to backup the client. I ran across a couple posts that say the following: "you'll need a full backup after the journal engine starts" What does that mean based on me having installed the journal engine after I had already done a full backup? Does that mean I need to delete my filespaces, and do a brand new full incremental? If anyone can clairify this for me I would greatly appreciate it. Thanks, James Choate Standard Life : 175 ans au coeur de nos vies Standard Life: Part of our lives for 175 years
