Netbackup Storage LifeCylce Policies and DD Pool filling up
Recently we implemented Deduplication (and soon will be replication to another server), using Disk Pools and Storage LifeCycle Policies.
Before we had just Basic Disks for Storage Units for Online backups to disk.
Since moving to SLP we are constantly getting error 129 (Storage unit is full). We never had this issued with a Basic Disk Setup. It just worked as it should and did what the High and Low watermarks are supposed to do. With SLP these watermarks don't work at all. The watermarks are the default of 98% and 80% (high and low respectively).
Why does it not work ? Why does it not perform in the same manner ? Why is it not consistant ?
How do I fix this issue so that the server just expires images (the oldest ones) from the online disk storage when it needs the space to perform newer ones like it did before ?