WorkStation Pattern

The last pattern we are going to discuss today is the WorkStation pattern that emulates the intensive user work in different applications on NTFS5 file system.

First come the results for WriteBack mode:

The situation is pretty common for RAID0 arrays: the more drives there are, the faster the array is. RAID5 arrays show similar results, however the performance of 5-HDD array suddenly drops down at 2 requests queue. The situation with RAID10 arrays is even worse: the arrays of 6 and 8 hard disk drives are almost the same. RAID1 is faster than a single HDD in all work modes, however when the workload increases, it starts slowing down. The performance of the single HDD is, on the contrary, growing under high work load and dropping under small load.