MENU
StarWind VVols for VMware vSphere Environment
Posted by Dmytro Malynka on June 16, 2017
No ratings yet.

Introduction

VMDK file to LUN storage architecture has been the most usable scenario for years until VMware released Virtual Volumes in vSphere 6.0. In the case of an array with block access, own VMware file system – VMFS  – was used -, and NFS was used for file storage. The array capacity was divided into LUNs or NFS-shares and presented ESXi hosts in the datastore form. Frequently, datastore is a large capacity storage housing numerous VMs. In fact, allocating a separate datastore for each VM is quite inconvenient and time-consuming in terms of administration.

With this approach, the VM storage maintenance operations are at the datastore level, and not at the Virtual Machine level. The operations like snapshots, replication, deduplication, encryption, etc. are performed at the storage level, thus being implemented faster with no use of compute and networking resources. The traditional VM storage technology described in vSphere is still supported. At once, Virtual Volumes (VVols) is an object containing VM files virtual disks and their derivatives.

This handy and at the same time advanced technology was integrated with StarWind Products, that I am about to implement.

StarWind Virtual SAN setup window

(more…)

Please rate this

Design a ROBO infrastructure. Part 4: HCI solutions
Posted by Andrea Mauro on June 7, 2017
5/5 (1)

2-nodes hyperconverged solution

As written in the previous post, for ROBO scenario the most interesting HCI (Hyper-Converged Infrastructure) configuration is a two nodes configuration, considering that two nodes could be enough to run dozen VMs (or also more).

For this reason, not all hyperconverged solutions could be suitable for this case (for example Nutanix or Simplivity need at least 3 nodes). And is not simple scale down an enterprise solution to a small size, due to the architecture constraints.

Actually, there are some interesting products specific for HCI in ROBO scenario:

StarWind Virtual SAN overall architecture

(more…)

Please rate this

VMware’s Photon and containers in VMware
Posted by Gary Williams on April 12, 2017
4.5/5 (2)

The past month has been categorized as something of a performance and upgrades challenge as one of the constant calls I hear is “application X is going to slow”, of course, a month ago it was fine but today it isn’t and normally this is just down to increasing load.
One of the common fixes for increasing load is to add more vCPU and RAM but often that can cause its own set of problems especially when NUMA boundaries are crossed and when vCPU contention pushes things a little too far.
The second part of the challenge is the upgrade challenge where various applications need upgrading but there are dependency chains to take into account, this is the sort of thing where application X needs a very specific version of application y. In those cases, an upgrade is much easier to do by reinstalling the OS and starting again then transferring the data across!

As a potential solution to these issues that I’ve been exploring is Docker on VMWare’s Photon OS.

 VMware Photon logo

(more…)

Please rate this

VMware vCenter Server Appliance (VCSA) and after install tricks
Posted by Vladan Seget on April 10, 2017
5/5 (1)

It is not new that VMware vCenter Server Appliance (VCSA) is a very popular option, especially for small businesses which can save money on an additional Windows Server license.

It is a prepackaged and preconfigured virtual appliance with PostgreSQL database, vCenter server 6.5 components and also (in case you deploy “all-in-one” VM) Platform services Controller that contain all of the necessary services for running vCenter Server such as vCenter Single Sign-On, License service, and VMware Certificate Authority.

The VCSA is running Photon OS which is a VMware own lightweight distribution, optimized for fast booting, security, and scalability. During a long time, VMware was using Suse Linux Enterprise Server (SLES) distribution, but the fact that VMware did not own the stack was a break to faster development.

Reset Root password on VMware VCSA

(more…)

Please rate this

vRealize Operations Manager Gems
Posted by Michael Ryom on March 29, 2017
5/5 (2)

Working with vRops over the last years has taught me one thing. The development of vRops goes so fast. Sometimes so fast that you do not realize when or what has changed. However, there are many “hidden” gems in vRops, which will make you and the product shine even more.

So come along, as I will show you my top ten hidden gems of vRops…

Datastore KPI view

(more…)

Please rate this

Virtual workload migration with VMware
Posted by Askar Kopbayev on March 27, 2017
No ratings yet.

It is quite surprising how many companies migrate virtual workload nowadays. There could be different reasons – expiring contract with the service provider, move to the new office, consolidation of resources to minimize Capex and Opex, but in every case, companies need efficient and flexible V2V migration solution.

Very often people think of migration in terms of moving data from one place to another. However, migration is much more than that. For instance, you would probably want VMs to keep the same IP addresses after the migration. Which means you need to consider stretching VLANs between the source and target locations in case you cannot migrate all VMs in particular subnet in one go. You must plan a network cutover too.

Cross-vCenter vMotion

(more…)

Please rate this

Veeam Backup Enterprise Manager
Posted by Romain Serre on March 21, 2017
5/5 (2)

Veeam Backup Entreprise Manager is an optional component that enables to consolidate several Veeam Backup & Replication server through a single pane of glass. Veeam Backup Enterprise Manager provides a web-based interface to centrally control and manage all jobs. You can edit job, monitor them and have a consolidated view of the reporting of all Veeam Backup & Replication server. In this topic, we’ll see how to configure Veeam Backup Enterprise Manager.

2-node Cluster based on Hyper-V 2016 and ESXi 6.5

(more…)

Please rate this

vSphere 6.5: HA & DRS improvements. Part 2
Posted by Askar Kopbayev on March 3, 2017
5/5 (1)

In Part II we will review the remaining improvements in vSphere Availability and Resource Management brought by vSphere 6.5.

Challenge: HA Restart priorities are not flexible enough

Description

Modern applications can be very complex and may consist of more than one server. Very often multi-tier applications require specific restart order, e.g. classic scheme DB – App – Web.  For instance, if an application server powers on before the database server the application will fail to start. To make it worse, there is no guarantee that the application server will automatically recover after DB server is powered on.  Sometimes the application server will have to be rebooted to restore the service. Moreover, there could be inter-application dependencies which make the situation even more complicated.

DRS in vSphere 6.5 view

(more…)

Please rate this

vSphere 6.5: HA & DRS improvements. Part I
Posted by Askar Kopbayev on March 2, 2017
5/5 (3)

A number of improvements that have been introduced in vSphere HA and DRS in the last several years are impressive. vSphere 6.5 continues this tradition by bringing new features into HA Admission Control, by adding flexibility with HA Orchestrated Restart and by enabling DRS to make more intelligent balancing.

I will be trying a new format today. First, I will be explaining the challenges you might have had in previous vSphere releases and then I will show you how the new vSphere 6.5 HA & DRS features address those challenges.

vSphere admission control cluster resource percentage

(more…)

Please rate this

Design a ROBO infrastructure (Part 2): Design areas and technologies
Posted by Andrea Mauro on February 24, 2017
4/5 (1)

In the previous post, we have explained and described business requirements and constraints in order to support design and implementation decisions suited for mission-critical applications, considering also how risk can affect design decisions.

Now we will match the following technology aspects to satisfy design requirements:

  • Availability
  • Manageability
  • Performance and scaling
  • Recoverability
  • Security
  • Risk and budget management

ROBO Design areas and technologies

(more…)

Please rate this