Request some help for those who know about the LSI controllers. Using the 2308 controller chip found on the ASRock Extreme 11 motherboard and I have eight 128 GB OCZ Vertex 4 SSD's (Firmware 1.5) set up in RAID 0.
This is the very poor speed I am getting:
This is the speed I got with a mere two 128 GB Vertex 4's on Z77 Intel Raid 0:
Both are 64kb stripe.
Pretty much the only speed that looks correct on the LSI setup is the 4k read and Acc.time's. Everything else look's very slow. The 4k write is abysmal, and the sequential speed is far far below what eight M4's got here using the same controller chip (4180 MB/s seq read):
http://.com/our-reviews/sata-3/lsi-sas-9207-8i-pcie-3-0-host-bus-adapter-quick-preview/5
These are the settings:
Now in that last screenshot above, it shows disk cache enabled (which doesn't effect the speed with before and after change runs), read policy to none, write policy: write through.
But when I go to change any of those items by right clicking the virtual drive properties, you can see the window, the only option is disk cache policy.
According to this site: http://kb.lsi.com/KnowledgebaseArticle16553.aspx
There are a lot more options there that I don't have. What gives?
Anyone have a clue why this performance is so poor?
Am I suppose to buy some of this software for hundreds and hundreds of dollars located here: http://store.lsi.com/store.cfm/Advanced_Software_Options/
Just to get my LSI controller speed working properly?
This is the very poor speed I am getting:
This is the speed I got with a mere two 128 GB Vertex 4's on Z77 Intel Raid 0:
Both are 64kb stripe.
Pretty much the only speed that looks correct on the LSI setup is the 4k read and Acc.time's. Everything else look's very slow. The 4k write is abysmal, and the sequential speed is far far below what eight M4's got here using the same controller chip (4180 MB/s seq read):
http://.com/our-reviews/sata-3/lsi-sas-9207-8i-pcie-3-0-host-bus-adapter-quick-preview/5
These are the settings:
Now in that last screenshot above, it shows disk cache enabled (which doesn't effect the speed with before and after change runs), read policy to none, write policy: write through.
But when I go to change any of those items by right clicking the virtual drive properties, you can see the window, the only option is disk cache policy.
According to this site: http://kb.lsi.com/KnowledgebaseArticle16553.aspx
There are a lot more options there that I don't have. What gives?
Anyone have a clue why this performance is so poor?
Am I suppose to buy some of this software for hundreds and hundreds of dollars located here: http://store.lsi.com/store.cfm/Advanced_Software_Options/
Just to get my LSI controller speed working properly?
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