IOSTAT or a utility to discover %disk idle time usage.

[lgameplayer]

All i have a esx cluster running 4 nodes. I believe that my environment may be getting I/O bound. I am looking for a way to display the disc idle time on each on the virtual machines or on the esx servers themselves. Normally in linux i would run iostat or in windows i would setup a counter to check to %disk idle time. Is there a utility like these available to esx server?

[BenConrad]

esxtop run from the COS will give you detailed network/cpu/memory/disk statistics.

Ben

[Texiwill]

Hello,

You can install the sysstat package to get iostat but it will not report on vmfs, however esxtop does and is your best tool for this. vFoglight also has this reporting in a much nicer format.

Best regards,

Edward L. Haletky

VMware Communities User Moderator

====

Author of the book 'VMWare ESX Server in the Enterprise: Planning and Securing Virtualization Servers', Copyright 2008 Pearson Education.

CIO Virtualization Blog: http://www.cio.com/blog/index/topic/168354

As well as the Virtualization Wiki at http://www.astroarch.com/wiki/index.php/Virtualization

[lgameplayer]

Thanks for the feed back ESXTOP was useful. I have also just found in the VMWare Client under performance-->Disk-Usage-->Physical Device Read/Write/Command Latency was exactly what i was looking for. Thanks for the help guys.