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A virtual machine file lock issue rarely shows up at a convenient time. It usually appears when a VM refuses to power on, a consolidation task is stuck, a backup window has overrun, or vCenter and an ESXi host disagree about the VM’s state. That is exactly when bad habits get expensive. The temptation is
Finding VM File Locks on ESXi: A Production-Safe Runbook Before You Kill Processes Read More »
A purple screen on an ESXi host creates an immediate operational problem, but the bigger risk is what happens next. The first reaction is usually to get the host back online. That is understandable, especially when workloads are down, HA is recovering virtual machines, or a cluster is running hot after losing capacity. But if
ESXi PSOD Triage: Turning a Purple Screen into an Evidence-Driven Escalation Read More »
There are storage incidents where the host looks half-recovered. The fabric switch is back online. The link light is good. The array port is healthy. Some paths may even show up again. But inside ESXi, the storage view still does not match reality. A datastore has fewer paths than expected. An RDM-backed workload is not
When Fibre Channel Paths Lie: A Safe Fabric Login Reset Runbook for ESXi Read More »
There are storage incidents where the host looks half-recovered. The fabric switch is back online. The link light is good. The array port is healthy. Some paths may even show up again. But inside ESXi, the storage view still does not match reality. A datastore has fewer paths than expected. An RDM-backed workload is not
When Fibre Channel Paths Lie: A Safe Fabric Login Reset Runbook for ESXi Read More »
VLAN issues in VMware environments are rarely caused by one mysterious setting. More often, they come from a translation problem. The network team thinks in terms of access ports, trunks, allowed VLAN lists, native VLANs, port channels, and upstream gateways. The virtualization team thinks in terms of vSwitches, distributed port groups, VMkernel adapters, VM network
VLAN Design Translation for VMware: Physical Trunks, Port Groups, and Guest Tagging Read More »
Virtual machine network problems rarely arrive with a clean label. The ticket usually says something like “the VM is unreachable,” “the application cannot connect,” “ping fails,” “internet access is down,” or “VMs on different hosts cannot talk.” The underlying cause might be inside the guest OS, on the VM’s virtual NIC, in the port group,
VM Network Troubleshooting from Guest OS to Uplink: A Layer by Layer VMware Runbook Read More »
Storage failures in vSphere are rarely just “storage is down.” That phrase may be accurate from the application owner’s point of view, but it is not precise enough for the operator who has to decide what happens next. A host that has lost all paths to a datastore behaves differently from a host that has
PDL vs APD: The Storage Failure Model Every vSphere Operator Needs Read More »
Done — I removed the extra line breaks/page-break-style spacing. The only preserved line breaks are inside the ASCII workflow and PowerCLI script so they remain usable. Why Large VM vMotion and Clone Tasks Fail: Device Limits, Config Hygiene, and PowerCLI Prechecks Large VM migrations usually fail at the worst possible time: late in the change
