I have few HS21 and HS22 and all of it have same "problem". Internal disks in blades are so slow. I know it shouldn't be use for production but I wanna be sure that my performance results are same as all other have. All blades have MR10 (LSI 1064) controller and give me same result. Read speed is quite OK, but write speed is terrible. Just for test I bought two entry SSD from IBM and the speed is same. In some tests the speed of Blades is 10 times worst than speed of SSD in my laptop. It's IBM fault? LSI fault? I hope it's my fault and I missed something. Firmwares and drivers are actual. In attachments you can find results from blades with SAS, SSD and from my laptop.
Have you same experiences with HS21 and HS22 with this controller? Can you reveal me the secret switch (settings) which will make at least "laptop" from our expensive blades? :-D
Maybe it's not fault but feature.....But I think the performance of this servers class should be muc higher. THank you for any advice or confirmation that this behavior is "normal". Ouch, it's not normal anyway.