Hi Sallie,
Please have a read of this document:
RMAN Archival (KEEP) backups and Retention Policy (Doc ID 986382.1)
KEEP backups in 11g no longer play in the same sandbox as other DR backups. The
feature was expanded in 11g to provide an archival backup mechanism that would
not disturb nightly backup activity. In general a KEEP backup only knows about
other KEEP backups with the same TAG.
Regular archivelog backups will only become obsolete if there is a full or
level 0 backup taken, and these backups fall outside the retention policy.
Cheers,
Leng.
On 9 Mar 2021, at 8:34 am, Sallie Cottingham <Sallie.Cottingham@xxxxxxxxxx>
wrote:
Hi –
I currently have a daily full RMAN backup job that runs each evening and one
additional job that runs every 2 hours to backup the archive logs. My setup
is that the full backup is kept for a recovery window of 14 days and for the
archive log files, once they have been backed up twice they are deleted.
I have a new requirement for a new job to be run monthly to get a full backup
of the database and keep that backup for a year. I’ve been researching this
and found that to do this I can use the ‘keep until time sysdate +365’ to
accomplish this. My understanding is that by using the ‘keep until’
parameter RMAN will backup the database as well as any archive logs needed
for a consistent backup. And spfile/control file as well?
I’m trying to understand how the archive logs backups work in this situation.
When the monthly backup is run and needed archive logs are included in the
backup is that counted against the 2 that I normally want to keep? And also
could there be a situation where a needed archive log might have already been
backed up twice and therefore been deleted? These monthly backups are going
to be written to DDBoost at our DR site and so I’m wanting to be double sure
that I know everything needed for a restore is included – but also that I
haven’t done anything that would upset my normal backup routine.
Any insight would be helpful – Thanks!
Sallie A. Cottingham, OCP
Database Administrator
Comptroller of the Treasury
Technology Solutions
425 Rep. John Lewis Way N. | Nashville, TN 37243
sallie.cottingham@xxxxxxxxxx <mailto:sallie.cottingham@xxxxxxxxxx> | Direct
Line 615.401.7962
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