Hidden tool in ESX to obtain vSCSI stats.

[thickclouds]

Anyone made good use of the vscsistats tool in ESX to capture IO?

http://communities.vmware.com/blogs/chuckgman

[lamw]

Here's an old article by Duncan Epping regarding vSCSI IO Stats: http://www.yellow-bricks.com/2008/06/19/vscsi-stats/

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William Lam

VMware vExpert 2009

VMware ESX/ESXi scripts and resources at:

[admin]

Internally, we use this tool quite a bit to quickly analyze workloads to understand their characteristics. Analysis that used to take hours takes seconds now. I wrote a paper accepted at IISWC 2007 that you can take a look at. Also, at my blog you can find some more related stuff. Surf on over to http://virtualscoop.org.

Feel free to ask more questions here or at my blog about the tool and what kind of stuff you can do with it.

Irfan

[thickclouds]

Thanks to both of you. Have any script examples you can share? I simply want to export it to csv really. There is so little documentation available for this tool.....

http://communities.vmware.com/blogs/chuckgman

[admin]

The tool has an option to export csv natively. Just run -h and read the help.

Irfan

[lamw]

Here's a great document by Scott on vSCSI:

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William Lam

VMware vExpert 2009

VMware ESX/ESXi scripts and resources at:

VMware Code Central - Scripts/Sample code for Developers and Administrators

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