Oracle-L: RE: rman question(allocating channels)

From: Adrian Roe <Adrian.Roe_at_telewest.co.uk>
Date: Wed, 28 Aug 2002 05:43:55 -0800
Message-ID: <F001.004C149E.20020828054355@fatcity.com>

Joe,

We only write out to tapes, so one channel equals one tape drive, each extra channel goes and gets another drive. Not too sure about disks, I guess it depends on I/O bandwith. Two channels will be faster than one, if the disk can cope with the input from two channels then maybe it makes sense. Best thing is to try it out and compare timings.

Ade

-----Original Message-----
Sent: 28 August 2002 13:38
To: Multiple recipients of list ORACLE-L

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

Live Life in Broadband
www.telewest.co.uk

The information transmitted is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. Statements and opinions expressed in this e-mail may not represent those of the company. Any review, retransmission, dissemination or other use of, or taking of any action in reliance upon, this information by persons or entities other than the intended recipient is prohibited. If you received this in error, please contact the sender immediately and delete the material from any computer.

--

Please see the official ORACLE-L FAQ: http://www.orafaq.com
--

Author: Adrian Roe
INET: Adrian.Roe_at_telewest.co.uk

Fat City Network Services    -- (858) 538-5051  FAX: (858) 538-5051
San Diego, California        -- Public Internet access / Mailing Lists
--------------------------------------------------------------------

To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). Received on Wed Aug 28 2002 - 08:43:55 CDT