esxi

Nested ESXi – Reduced Network Throughput with Promiscuous Mode PortGroups

We have been conducting performance and stress testing of a new NFS connected storage platform over the past month or so and through that testing we have seen some interesting behaviours in terms of what effects overall performance relative to total network throughput vs Latency vs IOPS. Using a couple of stress test scripts, we […] Read More

PSOD Warning: IBM HS23 Blades, Emulex 10GB Network Adaptors and ESXi 5.1

This is a quick informational post to warn anyone running an Emulex based 10GbE Converged Ethernet adapter in an IBM Blade Center with HS23 Series Blade servers with ESXi 5.x … Fix is below. You are at risk of simultaneous host failure via the VMware PSOD under unspecified conditions if you do not update to the […] Read More

How To: Setting Up Nagios User for ESXi

Unless my Google skills are seriously on the decline I wasn’t able to find a definitive post on correctly setting up a nagios user to facilitate esx_checks for monitoring systems such as OpsView and similar Nagios based systems. For our ESXi monitoring we have chosen to use the OS – vSphere Service Checks. Post here on how to get […] Read More

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