A practical VMXNET3 vs E1000E comparison for VMware administrators, covering drivers, performance, compatibility, migration risk, offloads, RSS, and how to change adapters safely.
A practical checklist for vCenter 8.x failing to add older ESXi hosts because certificate thumbprint validation times out.
A practical checklist for vMotion failures after an ESXi reboot, covering vmkernel adapters, MTU, routing, licensing, host state, and network validation.
A practical checklist for ESXi 8.x disk consolidation failures where VMFS reports IO was aborted via virt-reset, with storage congestion and path checks.
A practical checklist for adding an ESXi host to vCenter when the wizard cannot contact the host, covering DNS, management vmkernel, firewall, certificates, hostd, and vpxa.
A practical checklist for vCenter vpxd startup failures where PostgreSQL, database health, disk space, certificates, or service dependencies may be involved.
A practical VCSA 6.7 firstboot failure checklist covering DNS, NTP, FQDN, SSO, deployment logs, disk space, and when to redeploy instead of retrying.
A practical ESXi NFS 4.1 mount checklist covering server support, firewall, vmkernel network, DNS, permissions, and when to fall back to NFS 3.
A practical ESXi VM performance checklist covering CPU ready, memory ballooning, storage latency, snapshots, network drops, VMware Tools, and host contention.
A practical VMware Tools upgrade checklist for production VMs, covering reboot risk, guest OS support, snapshots, application windows, and guest operations.
