A great new range of informational overviews is available via the VMware Product Walkthroughs website. Covering a range of product overviews (from vSphere 6.5, vRealize Network Insight, and more), to the specifics of vSphere 6.5 Encrypted vMotion, NSX VXLAN Configuration, Virtual SAN Fault Domains. Great on so many levels, enabling us to up-skill and dry-run new products, demonstrate solutions to management and technical teams, etc. Continue reading
A reoccurring issue this one, and usually due to a failed backup. In my case, this was due to a failure of a Veeam Backup & Replication disk backup job which had, effectively, failed to remove it’s delta disks following a backup run. As a result, a number of virtual machines reported disk consolidation alerts and, due to the locked vmdks, I was unable to consolidate the snapshots or Storage vMotion the VM to a different datastore. A larger and slightly more pressing concern that arose (due to the size and amount of delta disks being held) meant the underlying datastore had blown it’s capacity, taking a number of VMs offline.
So, how do we identify a) the locked file, b) the source of the lock, and c) resolve the locked vmdks and consolidate the disks?
Configuring VLANs within vSphere is a simple enough task, however, testing outgoing ICMP traffic between hosts is a must when you find yourself unable to communicate with another VMkernel port on another host. Using the vmkping CLI command, we are able to test outgoing traffic via specific VMkernel ports, perfect for those attempting to troubleshoot connectivity issues on different subnets and/or vSwitches. Continue reading