On July 13, 2026 Broadcom shipped the next VCF 9.1 patch wave, and this post walks through the part of it that lives under Build -> Lifecycle -> VCF Management -> Upgrade: the VCF Management services. The headline releases on this surface are VCF Operations 9.1.0.0400 and VCF Automation 9.1.0.0200, mostly security enhancements plus a batch of fixes. This post is the follow-up to my 9.1.0.0300 walkthrough. To be clear on scope: this post covers only the management services. SDDC Manager 9.1.0.0400 and the core components — vCenter, NSX, ESX, vSAN — go through the VCF Instances flow and are not covered here; see the short section at the end. ...

Back in 2022 I wrote vRA 8 API getting started — two curl calls and you had a bearer token. Since then the product has been renamed twice (vRealize Automation → VMware Aria Automation → VCF Automation) and, more importantly for anyone with scripts in production, the authentication flow changed in VCF 9.x. Neither of the two calls from that post works against a 9.1 appliance. This is the 9.1 version of the same post: the minimum you need to do before you can actually query the API, with curl. ...

The 9.1.0.0300 patch went through this lab without drama at the beginning of July. Three weeks later, the 9.1.0.0400 express patch for VCF Operations hit the same single-node appliance and stopped dead at Installing PAK file — no progress, no error, and a reboot later, still nothing. What followed was a proper archaeology dig through every layer of state the upgrade machinery keeps, and almost every layer turned out to be holding a different version of the truth. ...

If you spent years typing flows where firewall action = deny into vRealize Network Insight, then watched the product get renamed to Aria Operations for Networks and then absorbed into VCF Operations as VCF Operations for Networks, you probably have one practical question: did the search language survive? It did — completely. I compared the VCF Operations for Networks 9.1 search documentation against the legacy Aria Operations for Networks 6.13 docs page by page, and the query grammar is identical: same entity types, same where operators, same group by / order by / limit clauses, same planning and path queries. Even the REST API still answers under the old /api/ni/ (Network Insight) namespace. Your saved searches and your muscle memory carry over as-is. ...

Continuing the credential cleanup in the same 9.1 environment from the expired password sync and VCFOPSPWID03 posts, one credential refused to settle: the service account SDDC Manager uses to talk to the NSX Manager API, svc-sddcmanager-a-nsx-mgmt--8199 in my lab. It showed up as disconnected, every remediation attempt failed, and the environment kept trying to rotate it in a loop. This one took several wrong turns before the actual root cause surfaced, and almost every wrong turn taught me something worth writing down. The short version: ...

While rotating credentials in the same 9.1 environment I covered in the expired password sync post, an Update of the NSX Manager admin password (credential type API) from VCF Operations kept failing after about a minute with error code VCFOPSPWID03 and a spectacularly unhelpful message: “call from NSX received invalid response.” The actual cause turned out to be simple — NSX rejected the new password because it had already been used on that manager. This being a lab, I was deliberately recycling a previous password. That goes against best practices, and NSX enforces it. But the way the error surfaces (and the way the reuse policy behaves in this build) is worth writing down. ...

In VCF 9.1, Fleet Password Management accounts can get stuck in EXPIRED status, and the password workflows changed compared to 9.0. In 9.0, you may have seen UI actions such as Disconnected or Remediate. In the 9.1 environment I was working on, those actions were not available. The UI exposed Update, and the Fleet Password Management API provides the same kind of workflow: query password accounts, then update or rotate the password. ...

The 9.1.0.0300 patch train for VMware Cloud Foundation 9.1 is applied through a few different lifecycle views. In my lab, the update covered the Fleet Lifecycle component, VCF Operations, SDDC Lifecycle, and SDDC Manager. Before starting, review the official Broadcom release notes: SDDC Manager 9.1.0.0300 Release Notes VCF Operations 9.1.0.0300 Release Notes Broadcom describes these patch releases as time-sensitive fixes that can be applied between major, minor, and maintenance releases. That also means every component may not move at the same time, so check what is actually offered in your environment instead of assuming the whole VCF bill of materials changes together. ...

Breaking Enhanced Linked Mode is one of those changes where the technical command is not the hardest part. The hard part is making sure administrators, service accounts, and external products can still log in and do their jobs after the vCenters no longer share the same SSO domain. In this post I will walk through a repeatable way to export and restore vCenter 8.x RBAC data before splitting Enhanced Linked Mode. The focus is on three permission layers: ...

While reviewing an SOS support bundle from a VMware Cloud Foundation environment, I noticed every ESXi host in the management cluster was logging the same warning, over and over, right up to the moment the bundle was collected: [vob.visorfs.ramdisk.full] Cannot extend visorfs file /vsantraces/vsantracesLSOMVerbose--...zst because its ramdisk (vsantraceFailover) is full. These are -INFO level VOB events, not errors, and they do not touch your data or VMs. But when the same symptom appears on all hosts at once, fires continuously, and never clears on its own, it is worth understanding what is actually happening and fixing it cluster-wide rather than logging into each host by hand. This post walks through the diagnosis and a small Bash script that queries, fixes, and reclaims space on every host in parallel. ...