Just bump into this article about Cisco Unified Computing while reseraching on virtualization. It seems something is brewing in the backyard. Is there going to be another giant releasing something interesting to the market? Take a look at “Introducing Unified Computing to the Data Center”. I guess this may be the same thing what Craig is referring to “Consolidate Server, Network Virtualization & Storage”.
Previously Craig talked about Storage Planning – Virtualization, the following article will share about “How to design Storage LUNs for optimum performance” - stripe Single LUNs to MetaLUN.
The most important point to fasten up LUNs speed is increase the spindle count on your LUN. And this can be achieve by Meta up few Single LUNs.
If you have 3 RAID Groups with 7 + 1 RAID 5 Configuration (7 Disks join as a RAID 5 Group and 1 as Hot spare), and you create a 60GB Single LUN on Group 1, you have 7 spindles to run this LUN. But if you create 20GN Single LUNs on each of your RAID Groups and Meta Stripe them together to become a 60GB Meta LUN, you are having 3 X 7 = 21 Spindles to run this LUN (theoretically we should call this RAID as RAID 50).
The same setting can apply to RAID 10 LUNs too, it will then become RAID 100.
Read more »
