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HighPoint RocketRAID 2720SGL SATA 6G RAID Controller Review

By: Chris Ramseyer | RAID/HBA in Storage | Posted: Sep 23, 2011 6:24 am
TweakTown Rating: 91%Manufacturer: Highpoint Technology



Version and / or Patch Used: 3.0 Technical Preview

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CrystalDiskMark is a disk benchmark software that allows us to benchmark 4K and 4K queue depths with accuracy.


Key Features:-


* Sequential reads/writes

* Random 4KB/512KB reads/writes

* Text copy

* Change dialog design

* internationalization (i18n)


Note: Crystal Disk Mark 3.0 Technical Preview was used for these tests since it offers the ability to measure native command queuing at 4 and 32.




In CDM we are looking at the native command queuing performance. All three RAID modes tested show good scaling as the commands get stack.




As is so often the case, budget offerings generally cut corners in one place or another. Here we see that in RAID 0 the controller is able to handle the high queue depths and take advantage of them. The RAID 5 and RAID 6 tests, though, don't look as nice.


This is one area that our testing methodology comes to bite us, though. SSDs are able to produce very high 4K numbers, but mechanical platter drives can't perform at this level. If you are using mechanical drives in your array then the limited 4K NCQ performance shouldn't be an issue.

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