Day: August 26, 2017

ESXi iSCSI Round Robin IOPS performance boost

By default in ESXi the Round Robin IOPS limit is set to 1000 meaning that the path only changes after 1000 I/O operations have occurred. The result is basically the same performance as running a single path in my experience. Adjusting the limit from 1000 to 1 can result in much better performance.

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Creating an ESXi install USB Stick

Installing ESXi (or any os for that matter) off of a CD/DVD is becoming harder and harder yet they still insist on distributing ISO files. Once upon a time we had these drives internally but these days chances are neither your workstation or server are going to have an optical drive meaning you’ll have to dig up a USB optical drive from the bottom of a box buried under multiple other boxes… Or something like that. USB sticks have replaced optical media for installing operating systems so here I’ll show you how to create an install USB for VMware ESXi. You’ll need: A Windows computer (Or USB passthrough to a Windows VM) ESXi ISO file USB Flash Drive 4GB+ Rufus (Portable edition is convenient)

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