PowerCLI script to list datastore space utilization

Here is a PowerCLI script that lists the datastore space utilization: Connect to vCenter server Connect-VIServer -Server -User -Password Get all the datastores in vCenter $datastores = Get-Datastore Loop through each datastore foreach ($datastore in $datastores) {# Get the capacity and free space of the datastore$capacity = $datastore.CapacityGB$freeSpace = $datastore.FreeSpaceGB # Calculate the used space … Continue reading PowerCLI script to list datastore space utilization →

What is SCSI – 3 Persistent Reservation

In my previous post, VMFS 5/6 and VMFS locking, I discussed characteristics of both VMFS versions along with upgrade possibilities and VMFS locking mechanisms. Why am I talking about it then? Well, the reason is that, topic of this post, SCSI - 3 Persistent Reservation is an extension of our discussion on SCSI-2 Reservations from … Continue reading What is SCSI – 3 Persistent Reservation →

iSCSI Naming convention

Terminologies IQN iSCSI Qualified Name, an identifier format defined by the iSCSI protocol T10 A technical committee within INCITS that develops standards and technical reports on I/O interfaces, particularly the series of SCSI (Small Computer Systems Interface) standards. See http://www.t10.org. T11 A technical committee within INCITS responsible for standards development in the areas of Intelligent Peripheral … Continue reading iSCSI Naming convention →