Adding/Removing Virtual Machines’ PortGroups for Standard Switch at cluster level with PowerCLI

Starting with vSphere 4, a nice network enhancement has been brought: Virtual Distributed Switchs (vDS) Except for the specifics features bound to the vDS, it is nice to set only one time a new VMs’ PortGroup for an entire group of hosts. Of course you have pro and cons between vDS and Standard Switchs. For … Read moreAdding/Removing Virtual Machines’ PortGroups for Standard Switch at cluster level with PowerCLI

vmware KB 2014323 PowerCLI to set qla2xxx option at cluster level

I’ve been facing very recently a naughty issue when I updated my vSphere 4.1u2 FCoE hosts to vSphere 5.0u1. Right after the migration to vSphere 5, majors’ performance issues appeared with the underling storage. I was facing read/write latencies of several thousand milliseconds which lead to dead path detection and of course I/O problem within … Read morevmware KB 2014323 PowerCLI to set qla2xxx option at cluster level