Category Archives: vCenter

Prepare Host Clusters for Network Virtualization

By | July 3, 2018

In this post, I will cover following topics of Objective 1.2 of VCAP6-NV Deploy exam: Objective 1.2 – Prepare Host Clusters for Network Virtualization Prepare vSphere Distributed Switching for NSX Prepare a cluster for NSX Add/Remove Hosts from Cluster Configure the appropriate teaming policy for a given implementation Configure VXLAN Transport parameters according to a deployment plan… Read More »

iSCSI Target for Windows Server Failover Cluster File Server & SQL using vSAN 6.7

By | June 9, 2018

Introduction: With the release of vCenter 6.7, vSphere 6.7, and vSAN  6.7, a long awaited feature of vSAN that being SCSI Persistent Reservations for iSCSI shared disks  is now released. This subsequently means that iSCSI target  shared disks hosted on vSAN  can now be presented to Virtual Machines on the same vSAN cluster and do… Read More »

Upgrading VMware vCenter 6.5u1 to 6.7 along with ESXi and vSAN

By | June 5, 2018

Introduction: VMware just released vCenter 6.7, vSphere 6.7, and VSAN 6.7 to the public introducing long awaited features concentrating on hybrid management. In this post I am going to walk you through an upgrade from 6.5u1 to 6.7 for vCenter Appliance, External PSC, vSphere through Update Manager, and lastly VSAN.    Upgrades to 6.7 is… Read More »

vCenter 6.5U1f Patch for Meltdown and Spectra Issue

By | February 27, 2018

VMware has released (on Feb, 15th) a new vCSA version: vCenter Server 6.5 U1f, with build number 7801515. This release patches the vCSA operating system (Photon OS) mainly against two vulnerabilities: bounds-check bypass (Spectre-1, CVE-2017-5753) and rogue data cache load issues (Meltdown, CVE-2017-5754). As of now, there is still no patch for branch target injection vulnerability… Read More »

Purple Screen of Death – PSOD

By | December 2, 2017

What is Purple Screen of Death – PSOD The Purple Screen of Death (PSOD) is a fatal crash of VMware ESX/ESXi hosts which kills all active Virtual Machines. A diagnostic screen with white type on a purple background. The term Purple Screen of Death is a play on the Blue Screen of Death, the informal name… Read More »

VMware vSphere Virtual Volumes (vVOL)

By | June 16, 2017

VMware vSphere Virtual Volumes (vVOLs) was one of the new features that were added back in the vSphere 6.0 release. Recently with vSphere 6.5, a few enhancements were made to the vVOLs and I am seeing quite a few customers use this in their production environment. On my day to day conversation with customers, mostly… Read More »

Replacing vSphere 6.x Machine SSL using VMCA as a Subordinate CA

By | May 15, 2017

vSphere 6.0 brought many enhancements with it and one of the most significant among them was VMware Certificate Authority which is VMware’s own CA and it eases the pain of certificate management in vSphere 6. VMCA is itself a fully functional CA and can be used to issue certificates to all vSphere 6 components (vCenter and… Read More »

vCenter Server Appliance (VCSA) 6.5 Backup and Restore – Part -2

By | February 7, 2017

In Previous post we have learn how to backup vCenter Server Appliance, In this Post we will restore the vCenter Appliance from latest backup. Let’s restore the vCenter Appliance from previous backup This approach is much similar to the Appliance deployment process and there are few differences in the steps. Let’s see how it goes.… Read More »

vCenter 6.5 High Availability – Part 1 – Overview

By | January 2, 2017

One of the most anticipated features of vSphere 6.5 is native high availability for vCenter Server. No additional product like vCenter Server Heartbeat or no third party feature like MSCS/WFCS is needed. The first thing to point out is that this feature is exclusive for the vCenter Server Appliance 6.5. Windows vCenter Server 6.5 will… Read More »

ESXTOP – Replay Mode

By | November 13, 2016

Replay mode – It is similar to record and replay operation. Data that was collected by the vm-support command is interpreted and played back as esxtopstatistics. We can view the captured performance information for a particular duration or time period as like real time to view what was happened during that time. This will be very useful for… Read More »