In a 4 disk RAID 1/0 configuration, how many spindles service read requests?
Posted on 2010-08-20
In a 4 disk RAID 1/0 configuration, how many spindles service "read" requests?
I have calculated the I/O capacity of my drives based on vendor specs and I was drawing up a chart to depect various RAID configurations and their Read/Write IOPs for a presentation I have next week. I have seen multiple blogs and forum posts that say to calculate cummulative "read" IOPs in a given RAID setup just add up the IOPs for all the spindles. But something makes me think that RAID 1/0 would only use one side of the mirror to perform the read operation. Am I wrong?