#HARD DRIVE RAID 0 DISKMARK SERIES#

Every hard drive consists of its unique circuit boards.

Even if a circuit board is damaged, don’t replace it at the same time. You can see a crystalmark run of the 980 by itself (non-RAID) in the black picture. Hence, you need to confirm if any circuit boards are damaged. 'Random Write 4KB' improvement is a cross between Sequential Write (ideal) and Random Write 512KB (not ideal)ĮDIT: As suggested by others, I disabled Win7 Disk Cache and then used a different tool ( CrystalDiskMark 2.2). Given that, there are times when RAID may fail due to issues in the hard drive circuit boards.'Random Read 4KB' improvement is a cross between Sequential Read (ideal) and Random Read 512KB (not ideal).'Random Write 512KB' improved probably because of integrated RAID.In any case, once the analysis is finished you can copy the data directly to the clipboard. Unfortunately, no information is given about what these tests really do or what results you should expect.

#HARD DRIVE RAID 0 DISKMARK SERIES#

and probably can't be easily explained in this scenario. CrystalDiskMark analyzes your hard drives by running a series of tests and displaying the results on the screen. 'Sequential Write' improved probably because of integrated RAID.'Sequential Read' improved probably because of: 4 disks to read from, not 2 AND better cache AND integrated RAID.Both volumes were 0% fragmented before the testĭual Samsung HD501LJ drives (500GB, 16MB Cache, 7200RPM) Sequential Read: 69.580 MB/sįour Seagate ST3500320AS drives (500GB, 32MB Cache, 7200RPM) Sequential Read: 120.388 MB/s.

I need some help in interpretting the following speed tests on two Volumes on my home PC.

Hard drive raid 0 diskmark