RE: RMAN restore times
- From: "Khemmanivanh, Somckit" <somckit.khemmanivanh@xxxxxxxxxxxxxxxx>
- To: "Lora Martin" <lmartin@xxxxxxxxxxx>, <oracle-l@xxxxxxxxxxxxx>
- Date: Thu, 4 Aug 2005 10:21:10 -0700
Thanks for your feedback.
Yes, my main hesitation with the RMAN backups for such a large database
was the restore times.
Why would a 4 GB file take 4 hours to restore? Contention for tape
resources? Really slow tape drives, network?
Thanks!
-----Original Message-----
From: Lora Martin [mailto:lmartin@xxxxxxxxxxx]
Sent: Thursday, August 04, 2005 10:01 AM
To: Khemmanivanh, Somckit; oracle-l@xxxxxxxxxxxxx
Subject: RE: RMAN restore times
If you have BCV - I would use that. I have used EMC BCV... very fast...
then go to tape from there. When we restored 4GB file using RMAN from
tape on a 2TB system - the restore took 4 hrs
-----Original Message-----
From: oracle-l-bounce@xxxxxxxxxxxxx
[mailto:oracle-l-bounce@xxxxxxxxxxxxx]
Sent: Thursday, August 04, 2005 12:50 PM
To: oracle-l@xxxxxxxxxxxxx
Subject: RMAN restore times
Hi,
I've been trying to understand the restore times associated with RMAN
backups. The Oracle version is 9205.
My question is this, with a Full, multiple Incremental(s) and
archivelogs to restore how are the RMAN restore times compared to
scripted on disk based backups?
Anyone here use EMC BCVs for backup? Would you consider RMAN for a
production backup/restore if you had BCV technology available to you?
Would you run the RMAN backup to the BCV first, then back up the BCV to
tape at your leisure? The BCV will still be available on disk for fast
restore times.
How long would a 1 TB RMAN backup take to restore? Would I need massive
tape drive capacity/speed to see decent restore times?
Thoughts?
Thanks for you input.
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