we recently purchased an ML 310e Gen 8 Server. The server has the following specifications:
Intel Xeon E3-1270v2 Quad Core 3.5Ghz
16 GB Dual Rank x8 PC3L-10600E DDR3-1333MHz Memory
4 x HP 500GB 6G 7200rpm 3.5" Non Hot Plug Midline SATA Hard Drives
HP Dynamic Smart Array B120i Controller (http://h18004.www1.hp.com/products/servers/proliantstorage/arraycontrollers/dynamicsmartarray/index.html
The only reason we purchased this server was because that the b120i controller was described as a 6Gb/s controller.
It would appear that the B120i controller runs only two of the disk on 6Gb/s and the rest of them on 3Gb/s. We are using a RAID 1+0 and would like for all of the disks to have the same speed - 6Gb/s.
We were advised by HP to purchase a separate controller for the build we request. What HP offered is -
Smart Array P222 Controller
Second Generation 6Gb/s SAS
x8 6Gb/s SAS physical links (compatible with 3G SATA)
512 MB DDR3-800 MHz 40 bit Flash-Backed Write Cache provides up to 4.2 GB/s maximum bandwidth.
x8 8.5G PCI Express host interface provides 4 GB/s maximum bandwidth.
MIPS 32-bit Processor
Read ahead caching
Flash Backed Write-back Cache
What we would like to find out before going ahead with this is the following:
1. What would be the effective speed gain if we get the suggested controller compared with the current one;
2. Will the cables from the back-plane be compatible with the new controller or we need to purchase new cables.