如何选购阵列卡，8块SSD跑RAID 0

dadadadamak

LSI 9361-8i

Timme

可以告诉你SAS2208和SAS2308满足不了你需求，楼上那种没用过

不过看看别人论坛的SAS3008，我觉得你还是淘宝买块三百多的M5110玩玩就好了

I have recently acquired LSI 9341-8i card to drive an array of 6 Intel 6Gb/s SSDs in RAID0 (offline backups but that’s not the point). I thought that controller that is capable of 12Gb/s should be able to handle pressure of 6 6Gb/s SSDs. It appears I was wrong about that. The card is becoming a bottleneck in RAID0 mode. Software RAID on top of 6 disks in JBOD mode is performing significantly better.

ghw

Timme 发表于 2014-11-8 00:59
可以告诉你SAS2208和SAS2308满足不了你需求，楼上那种没用过

不过看看别人论坛的SAS3008，我觉得你还是淘 ...

M5110的卡不贵 ，但是那缓存怎么特别贵啊》

Timme

ghw 发表于 2014-11-8 22:11
M5110的卡不贵 ，但是那缓存怎么特别贵啊》

缓存对Raid0作用不大，主要是提升Raid5性能用的

op_q2002

aladins 发表于 2014-11-10 00:44
请教下，上面的英文，我理解是12GB/S的SAS3008性能还没6GB/S的M5110好，是吗？

“ I thought that controller that is capable of 12Gb/s should be able to handle pressure of 6 6Gb/s SSDs.”这段是指他以为有能力处理12Gb/s的控制器应该能够处理 6Gb/s 的固态硬盘，但其实他错了。

op_q2002

如果要处理 8块硬盘的raid卡是不是应该插在pci-e 16 的插槽，否则pci-e 1的速度肯定不够