Mystery solved - or so it seems. Last week we had a helpdesk ticket where the user wanted some chmod/chgrp modifications of all files/directories in this area.
My co-worker did that on Thursday/Friday of last week. Seems this changes the ChangeTime (ctime), which NBU is using for determining if something has "Changed". I then did a Differential, and it was looking at the ctime. For one of the files: stat error.txt File: `error.txt' Size: 338713 Blocks: 962 IO Block: 4096 regular file Device: 1dh/29d Inode: 4365470520 Links: 1 Access: (0664/-rw-rw-r--) Uid: ( 2370/ cgoina) Gid: ( 9003/jtc-solexa) Access: 2008-10-15 09:44:41.235029187 -0400 Modify: 2008-10-15 09:44:41.235029187 -0400 Change: 2008-12-09 19:00:21.895757388 -0500 Turns out, the chmod/chgrp needed to be rerun on Monday/Tuesday this week. Is there a way for NBU to look at mtime instead of ctime? Thanks, Randy ----- Original Message ----- From: "A Darren Dunham" <[EMAIL PROTECTED]> To: <Veritas-bu@mailman.eng.auburn.edu> Sent: Wednesday, December 10, 2008 11:23 AM Subject: Re: [Veritas-bu] Full backup followed by a Differential = Another Full > On Wed, Dec 10, 2008 at 07:42:41AM -0800, Randy Doering wrote: >> Backup Client = Isilon NAS Unit - NDMP. NBU version is 6.5.3. > >> With this?one (10+TBs, 1,643,099 files) during the backup NBU said it >> was doing a Differential, but when it was all done, it had actually >> backedup everything again. > >> If I kick off another Differential this coming weekend, I certainly >> don't want to have yet another backup that gets all of the data once >> again. >> >> Any thoughts? > > Since this is NDMP, Netbackup isn't making any of the file level > decisions. It's just passing a set of parameters to the host (dump > level, date of backup, file path, tape drive, etc...) and letting the > make the selections. > > I don't have it in my notes, but you can up the log level of ndmp on the > isilon and view exactly what NBU is sending over. It'll show up in the > ndmp logs. Ah. Found my notes... > > On any node of the cluster, edit the file /etc/mcp/templates/syslog.conf > and change the line: > *.>=info /var/log/isi_ndmp_d > to: > *.* /var/log/isi_ndmp_d > This should increase the logging levels on the cluster for ndmp. > > You may want to check with your support contacts before doing this, but > it's just a log level change. > > With that in place, you can start a manual differential and see what it > looks to be doing. You'll be able to kill it so it won't consume tapes > for you. If nothing looks obviously wrong, you may have to contact > support. > > Good luck! > > -- > Darren > _______________________________________________ > 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