Mprice

The tape could always be imported.   A separate class simply ensures that it's
single stream and not multiplexed so that it's easy and quick to import.

I suppose the main reason for backing up to a class would be for a longer
retention so that you can revert back a few revisions.   The usual two tape
alternating tar's that the system does pretty much gives you the most recent and
consistent backups (consistent cause it shuts down all backups during the tar).
Problem is that there's only two copies and a problem could quickly run through
the two copy ring presumably that's why some people back it to a separate class.
If I were to do that, I would rig the system to back up to disk not tape, and
set up a class to back up the disk to which the database was being tarred to,
that way consistency is guaranteed since regular backups and database backups
never coincide.   Of course, this means you'll need a lot of disk space which
these days is cheap.

Regards,
John I Wang
Sr. Systems Engineer
Steverson Information Professionals

---
Enron Broadband Services
3 Allen Center 3AC872e
ph (713) 345-6863
pg pagejwang AT skytel DOT com





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|        |          MPrice@dantis|
|        |          .com         |
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|        |          03/15/01     |
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  >----------------------------------------------------------------------------|
  |                                                                            |
  |       To:     adriaan.mosseveld AT bt DOT com, veritas-bu AT 
mailman.eng.auburn DOT edu  |
  |       cc:     (bcc: John Wang/Contractor/Enron Communications)             |
  |       Subject:     RE: [Veritas-bu] Re : bpbackupdb specific tape          |
  >----------------------------------------------------------------------------|






        Isn't the only objection to putting a db backup on a normal backup tape
that the backup won't contain the info about that very backup job?  Otherwise,
what difference does it make?


-----Original Message-----
From: adriaan.mosseveld AT bt DOT com [mailto:adriaan.mosseveld AT bt DOT com]
Sent: Thursday, March 15, 2001 2:35 AM
To: veritas-bu AT mailman.eng.auburn DOT edu
Subject: [Veritas-bu] Re : bpbackupdb specific tape





The bpbackupdb command is not hardcoded to expect tapes from the netbackup
pool - we use a separate pool (netbackupdb) for database backups from our
offsiting routines to prevent any possible problems with routine db backups.
I would confirm as Rob Worman did that you should, under no circumstances,
try to put a db backup onto a normal backup tape (trashed data methinks).





Adriaan Mosseveld


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