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The vCenter Log Partition Runbook: Find Growth, Preserve Evidence, Restore Headroom

ai, AI (Artificial Intelligence), Artificial Intelligence, log disk exhaustion, monitoring, operations, runbook, SDDC Manager, support bundle, troubleshooting, VAMI, vCenter Server, VCF, vCF (VMware Cloud Foundation), VCSA, VMware Cloud Foundation, vSphere

A full /storage/log partition on a vCenter Server Appliance is not just a housekeeping problem. It is a management-plane risk. In a standalone vSphere environment, it can interrupt administration, log collection, patching, and service stability. In VMware Cloud Foundation, the blast radius is larger because vCenter is tied into SDDC Manager workflows, workload domain lifecycle […]

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vCLS Retreat Mode: When to Use It, What It Breaks, and How to Exit Cleanly

ai, AI (Artificial Intelligence), Artificial Intelligence, DRS, operations, runbook, vCenter Server, VCF, vCF (VMware Cloud Foundation), vCLS, vSAN, vSphere

Disable vCLS on a Cluster via Retreat Mode KB 316514 vSphere Cluster Services usually stay in the background until they get in the way of something operational. Most teams first notice vCLS when a cluster task is blocked, a warning appears after maintenance, or a handful of small system VMs show up and someone asks

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When Fibre Channel Paths Lie: A Safe Fabric Login Reset Runbook for ESXi

ai, AI (Artificial Intelligence), Artificial Intelligence, ESXi, FCoE, Fibre Channel, FLOGI, multipathing, RDM, runbook, SAN, storage paths, troubleshooting, vCF (VMware Cloud Foundation), VCF Operations, vmhba, vSphere

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

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When Fibre Channel Paths Lie: A Safe Fabric Login Reset Runbook for ESXi

ai, AI (Artificial Intelligence), Artificial Intelligence, ESXi, FCoE, Fibre Channel, FLOGI, multipathing, RDM, runbook, SAN, storage paths, troubleshooting, vCF (VMware Cloud Foundation), VCF Operations, vmhba, vSphere

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

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VM Network Troubleshooting from Guest OS to Uplink: A Layer by Layer VMware Runbook

ai, AI (Artificial Intelligence), Artificial Intelligence, ESXi, NSX DFW, pktcap-uw, port group, runbook, troubleshooting, vCenter Server, vCF (VMware Cloud Foundation), vDS, VLAN, vmnic, VMware Cloud Foundation, vSphere

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,

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Patching vCenter Through VAMI Without Turning It Into a Recovery Event

ai, AI (Artificial Intelligence), Artificial Intelligence, backup and restore, Broadcom KB, Lifecycle Management, patching, runbook, VAMI, vcenter, VCF, vCF (VMware Cloud Foundation), VCSA, vSphere

Patching vCenter should not feel dramatic. The workflow in the Appliance Management Interface is straightforward: log in to VAMI, check for updates, stage, install, validate. Broadcom KB 316584 documents that basic path for vCenter Server 7.x and 8.x, including two patching options: using a URL-based repository or mounting a patch ISO as a local CD-ROM

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Patching vCenter Through VAMI Without Turning It Into a Recovery Event

ai, AI (Artificial Intelligence), Artificial Intelligence, backup and restore, Broadcom KB, Lifecycle Management, patching, runbook, VAMI, vcenter, VCF, vCF (VMware Cloud Foundation), VCSA, vSphere

Patching vCenter should not feel dramatic. The workflow in the Appliance Management Interface is straightforward: log in to VAMI, check for updates, stage, install, validate. Broadcom KB 316584 documents that basic path for vCenter Server 7.x and 8.x, including two patching options: using a URL-based repository or mounting a patch ISO as a local CD-ROM

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PDL vs APD: The Storage Failure Model Every vSphere Operator Needs

ai, AI (Artificial Intelligence), APD, Artificial Intelligence, ESXi, PDL, runbook, storage, VCF, VMCP, vSphere, vSphere HA

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

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Using vCert Without Guesswork: A vCenter Certificate Recovery Runbook

ai, AI (Artificial Intelligence), Artificial Intelligence, certificates, Enhanced Linked Mode, KB 385107, runbook, SDDC Manager, sso, troubleshooting, vcenter, vCert, VCF, VCF (Cloud Foundation), VECS, VMCA, vSphere

vCenter certificate failures tend to show up at the worst possible time: during an upgrade precheck, after a maintenance window has already started, when services will not start cleanly, or when a certificate alarm has been ignored long enough to become someone else’s emergency. The mistake is treating certificate recovery as a button-click exercise. The

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The VMCA Reset Decision: When Regenerating vSphere Certificates Is the Right Move

ai, AI (Artificial Intelligence), Artificial Intelligence, certificate-manager, NSX Compute Manager, runbook, SDDC Manager, STS Certificate, trust chain, vCenter Server, vCert, VCF, VECS, VMCA, vSphere

Certificates in vSphere are easy to underestimate until they become the reason vCenter will not authenticate, services will not start cleanly, NSX loses trust in its Compute Manager, or SDDC Manager stops interacting with the management domain the way it should. That is why a VMCA reset should not be treated as a generic “renew

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