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LSI MegaRAID SAS 9265-8i RAID Controller Review

By: Chris Ramseyer | RAID/HBA in Storage | Posted: Feb 16, 2012 6:32 pm
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TweakTown Rating: 94%Manufacturer: LSI

CrystalDiskMark

 

Version and / or Patch Used: 3.0 Technical Preview

Developer Homepage: http://crystalmark.info

Product Homepage: http://crystalmark.info/software/CrystalDiskMark/index-e.html

Download here: http://crystaldew.info/category/software/crystaldiskmark

 

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.

 

lsi_9265_8i_megaraid_sas_raid_controller_review_19

 

In CDM we're looking at 4K and native command queuing performance. LSI's default stripe size is 64kb and it looks like they choose that size for a reason.

 

lsi_9265_8i_megaraid_sas_raid_controller_review_20

 

At this point we can call the 8kb stripe size worthless, the drives can't ramp up the speed in that small of a stripe. Fast Path gives us a small advantage in these tests, but much less than I expected.

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