A tool for estimating storage capacity needs, this utility typically considers factors such as raw drive size, RAID level, and filesystem overhead to provide users with an approximation of usable space within a Drobo storage array. For example, it might demonstrate the difference in usable capacity between a RAID 5 and a RAID 6 configuration with the same set of hard drives.
Accurate capacity planning is crucial for any storage system, and these utilities facilitate informed decisions regarding drive purchases and array configuration. Historically, calculating usable storage in RAID arrays required manual calculations which were prone to error. These automated tools simplify the process, allowing users to visualize the impact of different RAID levels and drive sizes on their available storage. This ensures efficient utilization of resources and minimizes the risk of running out of space unexpectedly.
