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breadly
Asked: 2009-09-16 23:56:31 +0800 CST

SAN disk Write/Read speed

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We are currently having some issues transferring large files (100-800 GB) from one Windows 2003 server to another. They are all virtualized and on SAN partitions so we are trying to narrow down the gap between Networking, ESX, or SAN. Preliminary testing does not indicate Network performance, so we are moving on to testing write/read speeds of the SAN partitions by the OS. My question is this:

  1. Does anyone have a good windows tool or CLI command to test read/write on a partition?
windows

2 Answers

  1. Best Answer

    I have been useing IOMeter successfully. Have you optimized your SAN Config according to VMware´s Whitepaper (PDF). Look for "Setting Maximum Queue Depth for HBAs"...

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  2. Ok, So I have been doing more research and I think that the Microsoft tool SQLIO is going to be what will give the most info for my needs. I am going to start this tonight and let everyone know how it goes as far as usefulness. I found a fairly good tutorial online tha tI am going to follow. If anyone else has any ideas, please let me know!

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