Date: MAR 2010
Product & Version: netvault all
OS Version: all
Phase 1 completes but phase 2 duplication goes into waiting for media state. When we look at the diagnose we see the media we would expect the backup to use is set in a state of Excluded from backup request.
If we look at the binary log we see that the tapes have been written to by the phase 2 duplication but the job does not complete the duplication to these tapes and The tape in question are not full.
These are multi-stream backups and by default multi-stream backups will only write 1 stream per tape. Multi-stream backups are usually database backups such as Exchange or Oracle
Enable the phase 2 duplication to write multiple streams to 1 tape by selecting Advance option; "Allow Streams to Share Media".
Multiple streams occur when backing up databases because they have log files and database files and each will generate its own stream. In exchange we also see 1 stream per storage group unless this option is not selected. The reason multi-streams are use is to speed up backups as it enables netvault to write 1 backup to multiple tape drives
Prepared by: Richard Downes
BakBone SFDC Solution Number: 00005509