NOOB RAID card issues

[sgrinavi]

I am getting very slow RAID0 performance with this LSI card (MegaRAID 344ELP). A pair of vertex (with 1275 BIOS) ran 500 MB/sec with the onboard raid run at 150 MB/SEC on this card. When I added a third SSD there was no change in performance. I even upgraded the firmware (to the new one with the TRIM command) still no change in results.

Is there something limiting the speed?

 

[Rubycon]

That host is too old for SSD's and its firmware is not optimized for the quick response of a SSD. Even if the hardware is capable I'd doubt that LSI will have a new firmware available for SSD's given the product line age.

 

[sgrinavi]

ouch... thanks.

FS forum here I come