RE: RMAN datafile allocation to channels

Keith - We were using 2 channels writing to disk and RMAN was putting almost an equal amount of data to each channel. For space purposes we needed to put more data to one disk. The only way I found to do this was to create 2 channels to the disk I needed to write the most data. That works fine, but seems a little crude.

Dennis Williams
DBA, 40%OCP
Lifetouch, Inc.
dwilliams_at_lifetouch.com

-----Original Message-----
Sent: Monday, December 16, 2002 1:49 PM
To: Multiple recipients of list ORACLE-L

My condolences on 8.0.5, you should patch to 8.0.5.1 for better a much better rman.

I think that every channel is used for each datafile. When one datafile has been completely backed up the channels are used for the next. This is empiracal thought, what I have observed. I have 2 channels going to one disk.

Ruth
----- Original Message -----
To: "Multiple recipients of list ORACLE-L" <ORACLE-L_at_fatcity.com> Sent: Sunday, December 15, 2002 1:38 PM

> Does anyone know how RMAN decides which data files get backed up by which
> channels. I'm backing up to disk and have 4 channels, each to a separate
> disk drive. The data files seem to get assigned to channels at random.
Also,
> this is a version 8.0.5 database (Ugggg).
>
> Keith
>
>

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Author: Ruth Gramolini
  INET: rgramolini_at_tax.state.vt.us

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