Re: Veritas backups

From: Jared Still <jkstill_at_gmail.com>
Date: Mon, 30 Apr 2007 17:08:21 -0700
Message-ID: <bf46380704301708u12b02edp39137d0e9b94a459@mail.gmail.com>

On 4/29/07, Arif Gulzar <gulzar.arif_at_gmail.com> wrote:

> That a good question...I had the same feeling, when companies use EMC,
> varitas, networker backup/recovery solutions with RMAN, has issues all the
> time , could be becasue of layers, like third pary software+RMAN...what not
> RMAN alone, any body can make comments on it?

One method to determine if a problem is with Oracle or the MML (Media Management Layer,
such as Veritas for Oracle ) is to use the dummy tape interface.

Oracle provides a 'tape' libray that actually writes to disk. It exercises the
RMAN API that MMLs are written to, allowing you to determine if a problem lies with Oracle or somewhere else.

Here is an example of allocating a tape channel using the dummy tape library:

allocate channel t01 type sbt parms 'BLKSIZE=1048576,SBT_LIBRARY= oracle.disksbt,ENV=(BACKUP_DIR=/bkup_1/orcl)'

There is at least one MetaLink note that includes this.

-- 
Jared Still
Certifiable Oracle DBA and Part Time Perl Evangelist

--
http://www.freelists.org/webpage/oracle-l

Received on Mon Apr 30 2007 - 19:08:21 CDT