Articles tagged Virtualization

12 September 2013
12 September 2013

A Practical Guide to Microsoft Hyper-V Replica: Part II

A Hyper-V replica installation provides rapid disaster-recovery by asynchronously replicating a VM running at a primary site to a replica site. Know how to prepare for something to go wrong at the Primary Server/Site? In this article Nirmal Sharma presents the Replication options for a Replica Virtual Machine with a focus on Hyper-V Failover. … Read more
26 October 2011
26 October 2011

Resource Governor

If you suffer from runaway queries, if you have several database applications with unpredictable fluctuation in workload, or if you need to ensure that workloads get the memory or CPU they need according to certain priorities, then you need Resource Governer, and you need Roy Ernest's clear explanation of the technology.… Read more
12 April 2011
12 April 2011

VMware Lab setup – A virtualized lab for testing HA and DRS

VMWare VSphere is a virtualisation technology that is best learned by setting up, on a single PC, a VSphere cluster as a virtualisation lab. Once you have it, it will then be a useful tool in many ways. This doesn't need to be an expensive exercise, but can be daunting if you don't have a simple guide to talk you through the process. Here, Sean provides that simple guide … Read more
26 November 2010
26 November 2010

Jorge Segarra: DBA of the Day

Jorge Segarra, also known on Twitter as 'SQLChicken', was one of the finalists of the Exceptional DBA award this year. He lives and works in Tampa, Florida. As well as working as a DBA, he's a Hypervisor for the PASS Virtualization Virtual Chapter and chapter leader of the PASS Professional Development Virtual Chapter, and has also co-authored the book from Apress "Pro SQL Server 2008 Policy-Based Management". … Read more
14 May 2010
14 May 2010

Virtual Machine Storage Provisioning and Best Practises

If you're using virtualization technology, then at some point you'll have run out of (or will run out of) virtual disk space, leading to the provisioning of extra storage; are you confident that you know how to do that? Sean Duffy makes sure you're doing it right, sharing his recommendations and tips in this step-by-step guide. Follow this advice, and you'll be a virtualization veteran in no time.… Read more
09 February 2010
09 February 2010

Using VMware vCenter Update Manager to keep your vSphere Hosts Up-To-Date with Patching

The chore of patching operating systems and applications is taking an increasing proportion of the time of a system administrator, so it is a a relief that at least VMware is keen to make the task easier. VMware provide a tool in vCenter Update Manager to assist in keeping VMware up to date. Jonathan Medd explains all.… Read more
22 October 2009
22 October 2009

Increasing the Availability of Virtualised Applications and Services

By using a virtualized clustering computing environment with failover, you can improve server availability without using as many physical computers. A group of independent computers can work together to increase the availability of virtualised applications and services. If one of the cluster nodes fails, another node takes over to provide the service without disrupting the service. Nirmal Sharma explains the failover process under Hyper-V and how to improve the performance of a failover.… Read more
10 June 2009
10 June 2009

A Beginner’s Guide to Virtualizing Exchange Server, Part 2

It isn't easy to measure the consumption of physical resources by servers in virtual machines, since each partition has its' own virtualised view of system resources. Not only that, but there is a subtle difference between virtual processors and physical processors. Brien Posey explains the special performance counters that can be used to get an accurate assessment, and goes on to describe how to test your physical servers to see if they are good candidates for virtualization. … Read more
01 June 2009
01 June 2009

Windows Server Virtualisation: Hyper-V, an Introduction

For SQL Server and Exchange Server, Windows Server Virtualization is going to be increasingly important as a way for the administrator to allocate hardware resources in the most efficient way, to offer more robust services, and for deploying services. Jaap Wesellius starts his new series on Hyper-V by explaining what Hyper-V is, how it relates to Windows Server 2008 and how it compares to ESX, Virtual Server and Virtual PC. .… Read more