Category: vSphere Tutorials

VCSA Storage Logs Full Overall Health 1

VMware vCenter Server Appliance /storage/log Full

A while back I was welcomed to the office by a vCenter Server Appliance critical health alert, specifically, ‘The /storage/log filesystem is out of disk space or inodes’. This error is usually due to a failed automated log clean-up process, so in this article I detail how to implement a...

Reclaim VMFS Deleted Blocks via UNMAP 0

Reclaim VMFS Deleted Blocks via VAAI UNMAP

Since the release of vSphere 5.5 back in September 2013 we have been able to utilise ESXCLI to manually reclaim deleted blocks from VMFS datastores. Essentially, by using the VAAI UNMAP primitive, we can reclaim previously used blocks by releasing them back to the storage array, allowing them to be...

201804_Editing_Protected_VMs_in_vCenter_01 0

Editing Protected VMs in vSphere

By design, there are certain virtual machines and/or appliances within vSphere which are protected to prevent editing (this can include NSX Controllers, Edges, Logical Routers, etc.) In a live/production environment, you’d not normally care about editing these appliances, however, in a lab environment (especially one where resource is tight), reducing memory...

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VMware vCenter Server Appliance 6.5: Installation & Configuration

Following the general release of VMware vSphere 6.5 last month (see my What’s New in VMware vSphere 6.5 post), I’ll be covering a number of technical run-throughs already in discussion throughout the virtual infrastructure community. We’ll be starting with a fresh installation of the new and highly improved vCenter Server Appliance (VCSA), followed...