I've tried to find this in the docs to no avail.
If I'm writing out an RMAN backup to one disk(yes this is not ideal), then
does it make sense to allocate multiple channels?
Are multiple channels related to CPUs or to destinations?
thanks, joe
-
From:
JOE
TESTA
To: Multiple recipients of list ORACLE-L
Sent: Wednesday, August 28, 2002 8:38
AM
Subject: rman question(allocating
channels)
I've tried to find this in the docs to no avail.
If I'm writing out an RMAN backup to one disk(yes this is not ideal
Rman channels are like processes, and you can have multiple channels writing
to one disk and reading from one disk in a restore, If your server has the
horsepower, then multiple channels will increase the speed of backups and
restores,
HTH,
Ruth
- Original Message -
To: Multiple
it makes sense. Best thing is to try it out and compare
timings.
Ade
-Original Message-From: JOE TESTA
[mailto:[EMAIL PROTECTED]]Sent: 28 August 2002
13:38To: Multiple recipients of list ORACLE-LSubject: rman
question(allocating channels)
I've tried to find this in the docs to no avail
.
-Original Message-From: JOE
TESTA [mailto:[EMAIL PROTECTED]]Sent: Wednesday, August 28,
2002 8:38 AMTo: Multiple recipients of list
ORACLE-LSubject: rman question(allocating
channels)
I've tried to find this in the docs to no avail.
If I'm writing out an RMAN backup
Joe -
1) Why do you feel writing RMAN backup to one disk is not ideal? Is it
the one disk, or disk vs. tape?
2) I would watch the I/O while it is running to see how close you are
coming to maxing out your I/O subsystem.
3) I suspect, but haven't investigated, that RMAN defaults are
