vSphere 5 – Deans Blog

Cannot change the host configuration when force mounting a VMFS volume

April 15, 2012

Following a recent upgrade to vSphere 5, a single VMFS volume was not mounted on a number of hosts within one of the clusters, after a short period of investigation the LUN was correctly mapped to the hosts and no configuration issues could be found. The VMFS volume was listed when selecting to ‘Add Storage’ … More Cannot change the host configuration when force mounting a VMFS volume

A calculation for MBps to IOPS (and vice versa…)

February 11, 2012

Whilst playing around with Storage I/O control (SIOC) in my vSphere 5 lab environment, I found myself trying to calculate the IOPS to be used when limiting a virtual disk throughput to a certain amount of MBps So here is the calculation I was using: IOPS = (MBps Throughput / KB per IO) * 1024 … More A calculation for MBps to IOPS (and vice versa…)