What about archived logs? Do you have a lot of them? How many versions of the database you normally keep in the backup?
Due to it's nature it is impossible to deduplicate Oracle archived logs (except you are backing up the same log several times) so the best approach is to compress archived logs using rman during backup and backup the rest of the database uncompressed to be deduplicated. As for the versions, if you have two L0s, you will get ratio of about 2, 3 L0s -> ratio 3 and so on. On Fri, Jun 7, 2019, 23:49 Jorge Bejarano <[email protected]> wrote: > > Hello, we only send Oracle database without archives to this vtl. > > Regards > > El miércoles, 5 de junio de 2019, 3:08:20 (UTC-3), Jorge Bejarano escribió: >> >> Hello, >> >> I'm taking backups of Oracle Databases with rman and Networker, and the >> deduplication ratio does not exceed 4x. >> >> This is my rman configuration: >> >> CONFIGURE DEFAULT DEVICE TYPE TO sbt; >> run >> { >> allocate channel t2 type 'SBT_TAPE' format 'b_%u_%p_%c'; >> SEND DEVICE TYPE 'SBT_TAPE' >> 'NSR_ENV=(NSR_SERVER=hostname,NSR_CLIENT=hostname,NSR_DATA_VOLUME_POOL="Default",NSR_NO_MULTIPLEX=TRUE,NSR_SAVESET_RETENTION=5 >> days)'; >> BACKUP filesperset 1 DATABASE; >> } >> EOF >> >> The backup of the file systems of the same clients with Networker has an >> average of 30x. >> >> >> Any advice will be of great help. >> >> Thank you! >> > -- > You received this message because you are subscribed to the Google Groups > "QUADStor VTL" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/quadstor-vtl/033409e8-9d42-4182-8ab5-a4467cdf1d1e%40googlegroups.com > <https://groups.google.com/d/msgid/quadstor-vtl/033409e8-9d42-4182-8ab5-a4467cdf1d1e%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "QUADStor VTL" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/quadstor-vtl/CAAC98QnEonU-HfUutuBW%2B0MHVOwwv%2B9FC%2B8TAzQBD9b9kXTJJw%40mail.gmail.com.
