This is a real old message I am replying to, but this issue is going to
become important to me shortly as well.
I do not think the whole issue has been determined here. I see a problem
with NT in this case, as I have been told that NetBackup uses the archive
bit to determine files to backup during incrementals. If this is the case,
then any full backup should reset the archive bit, regardless of class. You
could disable the ARchive Bit use, but that leaves other doors open. Even at
that point, I do not know how cross-class backups are handled from the
perspective you are asking. I imagine a Veritas engineer with intimate
knowledge of the process would need to answer (or we could test it
imperically)
Jason
-----Original Message-----
From: Douglas Ritschel [mailto:Douglas.Ritschel AT fnc.fujitsu DOT com]
Sent: March 23, 2001 14:22
To: veritas-bu AT mailman.eng.auburn DOT edu
Subject: [Veritas-bu] Offsite backups
I was told that a Full backup in one class does not affect the
incremental in another class. Evan though they are backing up the same
files.
I'm planning the following scenario. We have a terabyte of data to
backup, but I am simplifying it here.
Suppose I have the following two classes, onsite and offsite. They both
backup client machine1, files c:\data. Both have a cumulative
incremental and a full schedule.
I run the onsite full on the first Sunday of the month followed by the
Cumulative incremental the rest of the days of the month. On the third
Sunday of the month, I run the full from the Offsite class. I run the
offsite Cumulative incremental on the 1st, 2nd and 4th Sundays of the
month.
My question is, will the offsite full backup that runs on the third
Sunday of the month affect the onsite incrementals that occur following
it. In other words, will the onsite incrementals contain files that
changed since the onsite full backup from the 1st Sunday of the month,
or only files that have changed since the offsite full backup from the
3rd Sunday of the month. I was told by BPVault tech support, that since
they are in separate classes, the fulls in one do not affect the
incrementals in the other.
If it's not clear what I am asking, I can explain it further.
--
Douglas Ritschel
Fujitsu Network Communications
Two Blue Hill Plaza, Sixth Floor
P.O. Box 1609
Pearl River, NY 10965
Ph: 845-731-2101 Fx: 845-731-2011
Douglas.Ritschel AT fnc.fujitsu DOT com
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