To Check and balance Read/Write/IO Latancy on ESXi 6.5

Best Practice to check via GUI/Command Line/Tool/Utility
how to Fix and Balance Latency Issue
what shuld be std values n how we can ensure the same
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patronTechnical consultant Asked:
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
how to Fix and Balance Latency Issue

on storage ?
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patronTechnical consultant Author Commented:
Yes On storage
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patronTechnical consultant Author Commented:
Local and SAN Both -What should be std value n how we can check / balance the same
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
Manually, and look at performance.

Here's an article on performance

HOW TO:  Performance Monitor vSphere 4.x or 5.0
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patronTechnical consultant Author Commented:
Thanks Andrew

What is std value to be considered for Disk latency @Esxi ?
 and where we can configure threshold to give alert?
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Murali SripadaCommented:
Esxtop Davg should not go beyond 10 in general scenarios.. Davg stands for disk avg.. If Davg is high then there is a high latency issues from storage end and it can be due to multiple factors including multiple storage migrations or latency on lun level or if fibre channel port connectivity issues.. If there is an alarm you want to configure then it should be at the storage level I would suggest than esxi level..

Eg if you are using fibre channel then it's like plug and use it.. But end to end connectivy check and San switch check is important to consider..

If iscsi then your network card is the One which is used to send/ receieve traffic.. So they should be capable of handling load and ensure to keep them updated with latest firmware and drivers..

- Murali
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patronTechnical consultant Author Commented:
Andrew :- regarding  your article HOW TO:  Performance Monitor vSphere 4.x or 5.0

Nice article ,please confirm if this is applicable for 6.x or if there are more options available in version 6
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
Exactly the same for all versions of 4.x, 5.x and 6.x.
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patronTechnical consultant Author Commented:
Thanks
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