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CrystalDiskMark showing faster than disk drive can do ?

 
mkivST
New Member

CrystalDiskMark showing faster than disk drive can do ?

Hi there, 

Hope someone can enlighten me what the problem is here.

Server ML350 G9
6 x HP 600GB 6G SAS 10k rpm SFF HDD (653957-001)

Drive rated at 750 MB/s
I have been trying to upload a pic but always returned permission denied. Not sure what's wrong here. 

Uploading HP_Speed.jpg resulted in the following error: Permission Denied

 

 

 

So i will just type the CrystalDiskMark result below:

SEQ1M Q8T1  Read - 6951.86    Write - 4655.62
SEQ1M Q1T1   Read - 3130.94    Write - 2990.10
RND4K Q32T1  Read - 560.18    Write - 515.79
RND4K Q1T1    Read - 117.00    Write - 105.75

Say 6 of those drives configured in Raid 0, equivalent to 750MB x 6 = 4500 MB/s max possible speed. 

Can someone please educate me what part of mine is wrong ? 

 

Thanks.
L

3 REPLIES 3
Suman_1978
HPE Pro

Re: CrystalDiskMark showing faster than disk drive can do ?

Hi,

CrystalDiskMark being a non-hpe product, it may not show proper readings (I personally have not tested this software on hpe drives).

Hence cannot comment more on this benchmarking software.  https://crystalmark.info/en/software/crystaldiskmark/

Thank You!
https://support.hpe.com/hpesc/public/home


I work for HPE

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KevinSpringPM
HPE Pro

Re: CrystalDiskMark showing faster than disk drive can do ?

That typically means you're hitting some kind of cache instead of the drive itself. This could be an OS cache or the physical cache on an HPE smart array controller.

I'm an HPE Product Manager

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kat3499
Regular Visitor

Re: CrystalDiskMark showing faster than disk drive can do ?

same here. mee too need education for this . if you found some proper knowledge about this, then please ping me for that also.