[Veritas-bu] NB 4.5 very large backups and Streaming.
2003-11-07 18:06:24
Hi to all:
I have a question. I've been doing some tests but none has given me a
suitable result for mine problem.
I'm in charge of a backup platform who does a big number of backups,
some of those backups are considered 'very sensible'. Here's the
scenario:
- 1 Master server running NB 4.5 under HP-UX 11
- Some media servers (some on shared storage and some on dedicated
drives).
I have some servers who does very large backups (>1Tb daily) via an
export full (the admins of those machine choosed to do an export full
rather than doing RMAN). And they export all the data on a structure
like this:
/oracle/T11/sapdata
...
...
...
...
...
/oracle/T11/sapdata
Since this is an unattended process (both: the export & the backup) I'm
trying to find a suitable way of getting all the directories where SAP
exports the data and pulling into the library (the number of directories
can grow without previous notice) and I need to copy all.
Tried many attempts.
Case 1: Explicit declaration of all directories like....
NEW_STREAM
/oracle/T11/sapdata00
/oracle/T11/sapdata01
...
NEW_STREAM
/oracle/T11/sapdataxx
This approach is unmanageable because I need to keep an eye over this
server daily to check if there's any new directory to do backup. But I
can control on how many jobs is divided the complete job and use two
drives, take profit of the array of disks and the HBA's.
Case 2: Backup of all directories named sapdata like...
NEW_STREAM
/oracle/T11/sapdata*
This isn't acceptable, because puts all the copy under one only big job
and wanted to use the two dedicated drives I have on a Media server for
this duties.
Case 3: Use expressions to divide and make the backups:
NEW_STREAM
/oracle/T11/sapdata0[0-4]
/oracle/T11/sapdata1[0-4]
NEW_STREAM
/oracle/T11/sapdata0[5-9]
/oracle/T11/sapdata1[5-9]
...
...
...
NEW_STREAM
/oracle/T11/sapdata8[5-9]
/oracle/T11/sapdata9[5-9]
This case is not acceptable, because some directories not exist and the
software expands those expressions and try to do some jobs and the
directories doesn't exist (it gaves an Error 71) and shoots over the
IT/O console, giving scaring the operators by thinking that one or more
directores are lost.
Any other suggestions for doing this backup without needing to check
daily the number of directories and modificating the policy when is
needed?
Best regards,
Alfonso Correas
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