Unless you explicitly tell RMAN to skip read-only tablespaces, it will back
them up the first time around, once that is done, it will not back them up
again unless you alter the tablespace from read-only to writeable.... then
RMAN is intelligent to know that its original backup copy may no longer be
valid, so it grabs another.

There is an inherent caveat to this.... if you back up to tape, retain tapes
on-site for two months, then have the tablespace become corrupt after 3
months... you will not be able to restore without bring the tape back
on-site... so you may want to "trick" rman periodically (hopefully at least
as often as your tapes are taken off-site) by issuing a command to put it in
"read/write" mode then switch it right back to "read-only" to force a new
copy on you backup set.

HTH,
-Ron-

> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Pat Howe
> Sent: Friday, January 04, 2002 3:21 PM
> To: Multiple recipients of list ORACLE-L
> Subject: RMAN ReadOnly Tablespace Question
>
>
> With "RMAN Incremental backups" will a Level 0 backup always backup "ALL"
> tablespaces including previously backed up READONLY tablespaces ?
> Or is RMAN smart enough to realize that it has a current backup of all the
> READONLY tablespace and only backup the READ/WRITE tablespaces ?
>
> Thanks in Advance
>
> _________________________
>  Patrick J. Howe
>  Oracle DBA
>  Illuminet Inc. (Carrier Division of Verisign)
>  4501 Intelco Loop SE
>  Olympia, WA 98507
>  Phone : 360.493.6284
>  Email  : [EMAIL PROTECTED]
>
>
> --
> Please see the official ORACLE-L FAQ: http://www.orafaq.com
> --
> Author: Pat Howe
>   INET: [EMAIL PROTECTED]
>
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-- 
Author: Ron  Yount
  INET: [EMAIL PROTECTED]

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