You might want to look at the Netbackup Desktop/Laptop Option for backing up Pst's since I believe its designed to backup delta blocks not files.
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Martin, Jonathan (Contractor) Sent: Thursday, August 31, 2006 8:03 AM To: Brooks, Jason; WEAVER, Simon; veritas-bu@mailman.eng.auburn.edu Subject: Re: [Veritas-bu] Archive bit and disk defrag tools The only system I have with anything similar is a file share where people store .PST files. Because the .PST file gets "modified" every time they open their email this files (and most are quite large) get backed up EVERY DAY, which is completely silly. I'm trying to get more space allocated to exchange so I can get rid of these PST Files, but that is probably not your case. I would take a look at the data that is getting backed up in the incrementals. What files are being backed up (again, and again and again?) Do they share a common pattern? Are they database files that are constantly being "touched?" Is there some sort of application that is modifying the modified time on these files? I'm afraid without knowing the composition of the data this is an effort in futility. -Jonathan -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Brooks, Jason Sent: Thursday, August 31, 2006 10:06 AM To: WEAVER, Simon; veritas-bu@mailman.eng.auburn.edu Subject: Re: [Veritas-bu] Archive bit and disk defrag tools Our full on this server ran on Friday-Saturday and is a valid backup, at least according to the db. On the 26th, the backup of the drive in question contained roughly 96.86 GB in 564266 files. The differential-incrementals from the days since: 28th: 195661 files, 69.63 GB 29th: 202196 files, 69.51 GB 30th: 199555 files, 71.47 GB Realistically, it's highly unlikely that we have a delta of 72% per day for the first two, and a delta of 74% the third (in terms of capacity). 34% files delta between full and day one of D-I, 36% day 2 and 35% day three. Has anyone experienced a delta that high in differential-incrementals? It seems quite high. Jason > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of > WEAVER, Simon > Sent: Thursday, August 31, 2006 1:55 AM > To: Brooks, Jason; veritas-bu@mailman.eng.auburn.edu > Subject: Re: [Veritas-bu] Archive bit and disk defrag tools > > > Jason > Its possible unless the full backup did not fully complete before the > differential/Incr was being done. > > Regards > > Simon Weaver > 3rd Line Technical Support > Windows Domain Administrator > > EADS Astrium Limited, B23AA IM (DCS) > Anchorage Road, Portsmouth, PO3 5PU > > Email: [EMAIL PROTECTED] > > > > -----Original Message----- > From: Brooks, Jason [mailto:[EMAIL PROTECTED] > Sent: 30 August 2006 14:07 > To: veritas-bu@mailman.eng.auburn.edu > Subject: [Veritas-bu] Archive bit and disk defrag tools > > > Folks, > Have you ever experienced a defrag utility resetting the archive bit? > It appears that we may. We had a server last night backup about 95% > of it's file store on it's internal disk (defragged by > diskkeeper) while a > SAN drive backed up about 5% (not managed by diskkeeper). > This was all on a > Differentil-Incermental schedule. The client is set to use the > archive bit for differentials, so we're wondering if diskkeeper may > have reset the archive bit, or actually set it on numerous files, on > defrag. > Also, the > defrag would have ran in-between backups. > > Jason > > ------------ > Jason Brooks > Computer Systems Engineer > IITS - Longwood University > voice - (434) 395-2916 > fax - (434) 395-2035 > mailto:<[EMAIL PROTECTED]> > > _______________________________________________ > Veritas-bu maillist - Veritas-bu@mailman.eng.auburn.edu > http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu > > This email is for the intended addressee only. > If you have received it in error then you must not use, retain, > disseminate or otherwise deal with it. > Please notify the sender by return email. > The views of the author may not necessarily constitute the views of > Astrium Limited. > Nothing in this email shall bind Astrium Limited in any contract or > obligation. > > Astrium Limited, Registered in England and Wales No. 2449259 > Registered Office: Gunnels Wood Road, Stevenage, Hertfordshire, SG1 > 2AS, England _______________________________________________ > Veritas-bu maillist - Veritas-bu@mailman.eng.auburn.edu > http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu > _______________________________________________ Veritas-bu maillist - Veritas-bu@mailman.eng.auburn.edu http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu _______________________________________________ Veritas-bu maillist - Veritas-bu@mailman.eng.auburn.edu http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu _______________________________________________ Veritas-bu maillist - Veritas-bu@mailman.eng.auburn.edu http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu