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Disk Performance Problem HP ProLiant BL460c

Occasional Visitor

Disk Performance Problem HP ProLiant BL460c

Hi everyone:


We have a performance problem with this server copiying files. The behaivor is that at the beginning the process goes 50MB/s but after 5seconds stucks the process varing between 2MB/s and 1MB/s.


The disks are (in Raid1) WD5000BEVT-0 Western Digital and the Storage Controller is Smart Array e200 over WS2012R2


Below im describing the steps that i follow with no luck.


-Update BIOS.

-Update Smart Array E200 Firmware.

-Changing the Disks the performance is normal.

-CHKDSK /R/F/B: With no errors.

-WD Diagnostic Tool with no errors.

-HD tune, with no errors.


So o think is an incomplatiblity betweeen Storage controller and disk but i dont know how to solve it.


Can anybody help me?


thanks in advance.






ernst limbrunner
Trusted Contributor

Re: Disk Performance Problem HP ProLiant BL460c



i am sure your OS is windows.


it shows you extremely high values at the beginning and then slows down to the real data rate after some seconds.


i think your problem is as follows:


- you do a copy of files on the same disk


- your data are fragmented, or your data are comprised of small files



so nothing is wrong with your hardware.