Host: ESXi 5.0 OS: FreeBSD I had been having trouble with a VM which suddenly stopped (Veeam) backing up due to an "NFC" error: "Processing {vm_name} Error: NFC server [{esxihost.domain.local] is busy. Failed to retrieve next FILE_PUT message. File path: [[LUN3] {vm_name}/{vm_name}.vmx]. File pointer: [0]. File size: [3567]." Veeam requested I connect to the host directly and Read More…
Category: ESXi
VM doesn’t migrate with Redeploy All VMs Command in vCloud Director
Scenario: I needed to reboot a host but a single VM was not migrated when I called the Redeploy VMs command in vCloud Director. It was if VCD didn’t recognise the VM as vSphere didn’t even attempt to move it off the host. First of all, here are the instruction to place an ESXi host managed by vCloud Read More…
Consolidate virtual machine disk files failed. Files Locked
Nagios sent us an alert suggesting a virtual machine had a very high load. The OS itself looked fine and nothing appeared wrong with the server itself. Upon firing up vCenter I noticed that the virtual machine in question needed consolidating. Looking at Veeam backups from last night it seemed the job had failed. When right clicking and consolidating Read More…
Safely Removing and Adding a Physical RDM
Scenario: I have a Physical RDM directly attached to a Virtual Machine (Windows 2008 R2) over a storage network. This was formatted as NTFS on my E: drive. I wanted to physically re-locate the box from one rack to another which would involve shutting down and moving the storage deivce (OpenFiler). The cabling was ready. Here are Read More…
iSCSI Storage in VMware – A Quick Overview
Today I will be writing a very brief overview on iSCSI storage and how it fits into a VMware environment. In this example I will be referring to a small cloud I have set up using a 3 host ESXi (5.1) cluster which connects to an Equallogic SAN using a software initiator. What is iSCSI? iSCSI encapsulates Read More…
Intermittent iSCSI Connections to Dell MD3200i
Setup: 2 ESXI 5.0 hosts, connecting to a Dell MD3200i SAN via stacked Cisco switches. The setup has 3 LUNS. Problem: The small, private cloud with a webserver and backend DB server (amongst a few other servers ) became inaccessible from the outside world via HTTP/SSH etc. Upon inspection it appeared that the iSCSI storage was flapping. vCenter Read More…
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