Category: VMware

Back To Basics: Migrating from vSS to vDS in vSphere 6

In this post we will see how to migrate from vSphere Standard Swith to vSphere Distributed Switch. Let’s get started.

Before performing any migration, make sure you have a vDS deployed and fully configured i.e portgroups created, uplinks created, appropriate uplinks

VCAP6-DCV Deploy Objective 3.1

In this post we will cover following topics:

  • Create and manage vSS components according to a deployment plan:
    • VMkernel ports on standard switches
    • Advanced vSS settings
    Configure TCP/IP stack on a host Create a custom TCP/IP stack

VCAP6-DCV Deploy Objective 2.3

Objective 2.3 of VCAP6-Deploy exam covers following topics

  • Analyze and resolve storage multi-pathing and failover issues
  • Troubleshoot storage device connectivity
  • Analyze and resolve Virtual SAN configuration issues
  • Troubleshoot iSCSI connectivity issues
  • Analyze and resolve NFS issues
  • Read More

VCAP6-DCV Deploy Objective 3.4

Objective 3.4 of VCAP6-Deploy exam covers following topics

  • Perform a vDS Health Check for teaming, MTU, mismatches, etc.
  • Configure port groups to properly isolate network traffic
  • Use command line tools to troubleshoot and identify configuration issues
  • Use command

VCAP6-DCV Deploy Objective 7.3

Objective 7.3 of VCAP6-Deploy exam covers following topics:

  • Backup and restore distributed switch configurations

  • Backup and restore resource pool configurations

  • Export Virtual Machines to OVA/OVF format

  • Use a Host profile to recover an ESXi host configuration

Lets

Hardening Virtual Machine Security

Securing virtual machines in a virtualized environment is equally important as securing physical servers. In this post we will learn a few techniques for hardening a virtual machine security. Although its not possible to cover everything in a single post. 

1:

List services registered with SSO in vSphere 6

Method of listing services registered to SSO in vSphere 5.x and 6.x are very different. In vSphere 5.x list of registered services can be found by running command ssolscli.cmd.

In vSphere 6 a new python script “lstool.py” was introduced for this

VCAP6-DCV Deploy Objective 4.3

Objective 4.3 of VCAP6-Deploy exam covers following topics:

  • Analyze and resolve DRS/HA faults
  • Troubleshoot DRS/HA configuration issues
  • Troubleshoot Virtual SAN/HA interoperability
  • Resolve vMotion and storage vMotion issues
  • Troubleshoot VMware Fault Tolerance

We will discuss each topic

VCAP6-DCV Deploy Objective 6.2

Objective 6.2 of VCAP6-Deploy exam covers following topics:

  • Adjust Virtual Machine properties according to a deployment plan:
    • Network configurations
    • CPU configurations
    • Storage configurations
    Troubleshoot Virtual Machine performance issues based on application workload Modify Transparent Page Sharing and

VCAP6-DCV Deploy Objective 6.1

Objective 6.1 of VCAP6-Deploy exam covers following topics:

  • Configure esxtop / resxtop custom profiles
  • Evaluate use cases for and apply esxtop / resxtop Interactive, Batch and Replay modes
  • Use esxtop / resxtop to collect performance data
  • Given esxtop

VCAP6-DCV Deploy Objective 5.4

Objective 5.4 of VCAP6-Deploy exam covers following topics:

  • Create a Global User
  • Create a Content Library
  • Subscribe to a Content Library
  • Configure a Content Library for space efficiency
  • Synchronize a subscribed Content Library

     

VCAP6-DCV Deploy Objective 5.3

Objective 5.3 of VCAP6-Deploy exam covers following topics:

  • Generate vSphere log bundles
  • Configure and test centralized logging
  • Analyze log entries to obtain configuration information
  • Analyze log entries to identify and resolve issues
  • Configure logging levels for vSphere

VCAP6-DCV Deploy Objective 5.2

Objective 5.2 of VCAP6-Deploy exam covers following topics:

  • Use Profile Editor to edit and / or disable policies
  • Create and apply host profiles
  • Use Host Profiles to deploy vDS
  • Use Host Profiles to deploy vStorage policies
  • Import

VCAP6-DCV Deploy Objective 5.1

Objective 5.1 of VCAP6-Deploy exam covers following topics:

  • Install and configure vSphere PowerCLI
  • Use basic and advanced PowerCLI Cmdlets to manage a vSphere deployment
  • Analyze a sample script, then modify the script to perform a given action
  • Use

DRS Automation Level and Migration Threshold

DRS migration threshold allows you to specify which recommendations are generated and then applied (when the virtual machines involved in the recommendation are in fully automated mode) or shown (if in manual mode). This threshold is also a measure of how much

Configuring EVC in vSphere 6

The evolution of vSphere has forced the hardware vendors to add more enhanced functionalities in server hardware in order to bring the best out of virtualization.  Enhanced vMotion Compatibility comes into picture when a all Esxi hosts in a cluster are not

Configuring DPM in vSphere 6

What is vSphere Distributed Power Management (DPM)

Consolidation of physical servers into virtual machines that share host physical resources can result in significant reductions in the costs associated with hardware maintenance and power consumption.

vSphere Distributed Power Management provides

Esxi Host Power Management Policies in vSphere 6

One of the advantages which virtualization brought with itself was “POWER SAVINGS” as it enabled administrators to consolidate workloads on fewer number of physical servers and thus save some power and reduce carbon footprint in the datacenter. Sunny Dua rightly mentioned in

VCAP6-DCV Deploy Objective 4.1

Objective 4.1 of VCAP6-Deploy exam covers following topics:

  • Configure a HA Cluster to Meet Resource and Availability Requirements
  • Configure Custom Isolation Response Settings
  • Configure VM Component Protection (VMCP)
  • Configure HA Redundant Settings:

VCAP6-DCV Deploy Objective 8.1

Objective 8.1 of VCAP6-Deploy exam covers following topics:

  • Add/Edit/Remove Users on an ESXi Host
  • Configure vCenter Roles and Permissions
  • Configure and Manage Active Directory Integration
  • Analyze Logs for Security-Related Messages
  • Enable and Configure an ESXi Pass-Phrase
  • Read More

Password Policy for vSphere 6.0 Hosts

A complex password is a firstmost requirement for any system that simply uses username/password (no RSA, 2Factor authentication kinda thing) for authentication. For a windows or unix/linux based systems, system administrators used to push complex password requirements via AD/LDAP.

A complex