Am I missing something here... ? It was my understanding that with a RAID setup, it was possible to increase performance (not taking into account reliability) above that of a single disk. Let's say I ...

A mirror only lets you use one disk in a stack in usable space (50%, or less if for some reason you want a double redundant mirror, i.e. three disks). A RAID-Z ...

Bacula Systems, a global leader in high-security, high-performance backup and recovery solutions, today announced its latest Use Case: native integration and interoperability with the ZFS file system.