Domi78
1 Nickel

read and write performance on PE2900 with raid 5 perc 5/i

hi, i have two question

one about performance of my raid 5 array, perc 5/i with 4 250 GB SATA2 7200 rpm disk

in the image below i show the result of ATTO disk benchmark

i have default configuration and my driver version are:

5,0,2-0003 firmware

1.21.0.32 driver

i would know if this result are good or is possible to improve it

The second question is always about write performance, but over usb disk

in the attach image i show the I/O troughput while i'm writing on external usb disk

 

i don't understand why the copy is not continuous, but start then stop and then restart ecc.....

can you help me.. please..

recently the usb disk give me problem and i can't access to some folder. power off and power on and restart ok

maybe the usb driver is breaking??

 

thanks a lot

bye

Domenico

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3 Replies
grm139
2 Iron

Re: read and write performance on PE2900 with raid 5 perc 5/i

About the PERC 5/i controller, you should try with the latest FW (5.2.2-0072) and driver (2.23.0.32).  It should get you better performance.  The ATTO picture you attached it is not showing.

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Domi78
1 Nickel

Re: read and write performance on PE2900 with raid 5 perc 5/i

hi, thanks for the answer.

i have just try to re-insert the image of atto benchmark

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rrnworks
1 Copper

Re: read and write performance on PE2900 with raid 5 perc 5/i

Hello,

We are experiencing the same issue - erratic time remaining when performing a large file copy to a USB 2.0 drive - this happens across all USB drives we have been able to test.  Times start out at 10 minutes - then jump up to hundreds of minutes - then back down to 10 minutes - repeats until finished - but it takes much longer than it should.

We tried the latest drivers and firmware with no change.  Any ideas?

Thanks!

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