Monitoring Disk I/O

[dap]

I need to monitor disk I/O on three server to determine if we can place the three servers on a virtual platform. I have list of counters to use. I am a little confused about physical vs logical disk. Should I monitor both? Can anyone shed some light on this topic for me.....Thanks

 

[Nodsu]

Well, what exactly are you trying to determine?

Logical disk counters refelect activity per logical drive (the thing with a drive letter on). Physical disk counters reflect the activity per physical disk as Windows sees it (a single drive or a RAID array or whatever).

 

[dap]

Basically we have three servers that are somewhat i/o intensive per the vendor. I am trying to determine if they are good candiates for our vm enviroment so I wanted to get a baseline of the actual disk i/o. All three servers are dl380 g4 with the c and d drives both RAID 1+0 on Smart Array 642. Thanks!