To stretch or not to stretch?

In recent projects the use of stretched cluster solutions has been a recurring topic. But why is it a recurring topic, and what are the benefits and drawbacks? The primary benefit of a stretched cluster solution is to enable active-active and workload balanced data centers. The solution has the ability to migrate virtual machines between…

vROPS RBAC and upgrades

Last week I was at a customer doing some vROPS magic, which included updating the current vROPS 6.4 cluster to 6.5 to get the improved vRLI integration. Upgrading both vRLI and vROPS clusters went perfect, but the vRLI integration items like the Log Insight icon, and Logs tab would not be visible in vROPS after…

VCSA Upgrade and VM Monitoring

With the release of vCenter Server 6.0 Update 2a and ESXi 6.0 Patch 4 I decided it was time the update the lab environment. Both releases contain a lot of fixes, some specifically for VSAN. Release notes vCenter Server 6.0 Update 2a ESXi 6.0 Patch 4 The update went perfect on the Platform Service Controllers…

vSphere 6.5 Storage – What’s new

This VMworld EU 2016 VMware announced the long awaited vSphere 6.5. This blogpost focuses on the new and enhanced storage features in vSphere 6.5. VMFS-6 A new version of the VMFS file system is introduced providing an all-round performance improvement including faster file creation, device discovery and device rescanning. Maybe the biggest change is that…

Cross vCenter vMotion – Cannot connect to host

21 November – VMware engineering has given a fix for this issue. Results are posted at the end of this post. 17 October – Currently this issue is under investigation by VMware and the SR has been referred to VMware engineering. The workaround for this issue at this time is to not use the provision…

Log Browser and ESXi RAM disk full

With the vSphere Web Client it is possible to view, search and export vCenter Server and ESXi log files using the Log Browser. When you use the log browser to retrieve the log files of an ESXi host, the log bundle is stored on the ESXi host in /tmp/scratch/downloads. The location /tmp is a symbolic…

ESXi 6.x CBT issue

VMware has released a KB article regarding a new issue affecting ESXi 6.0 and 6.0 Update 1. This issue affects backups utilizing change block tracking (CBT). When running incremental virtual machine backups, backup applications typically rely on the vSphere API call QueryDiskChangedAreas() to determine the changed sectors. This issue occurs due to a problem with CBT…