Feeds

Windows in HA does go

High availability without the rocket scientists

Internet Security Threat Report 2014

High Availability (HA) environments can obviously be classed as a `good thing’. For most users, however, the balance between need and the cost of implementation usually ends up tipping them towards the `not bother’ side of the fence.

One of the cost issues that plays an inevitable part in this process is that of applications development, for high availability systems have traditionally been specialist environments requiring specialist skills. Put it this way, a typical Windows developer would not be expected to slot into that world at the drop of a hat.

One solution to this, adopted by Marathon Technologies, has been to provide an environment in which Windows developers can become HA `specialists’ without having to learn any new tricks. Indeed, they do not even have to know about development issues for Microsoft’s own clustering environment. According to Marathon’s EMEA sales director, Nick Turnbull, the Windows-based everRun technology makes no demands on developers for it has been developed to appear as a single server. “Any application that can run on a single Windows server can run on Marathon,” he said.

This is due to the architecture of the system and the patented virtualisation technology it employs. The HA software is a virtual server running on one member of a pair of identical servers connected by GBit Ethernet. The single instance of an application then runs in this virtual server, which in turn drives the two servers so that one runs as a permanent hot standby. The virtual server also acts as a metadatabase of the state of the two co-servers to ensure full synchronisation. The virtual server can be switched between the two servers as incidents, or maintenance schedules, demand.

As well as the everRun system, which aims to provide zero downtime continuous availability, there is also a lower-cost implementation called everRun HA. This is aimed at the data replication market and has the added advantage that the servers need not be identical as the virtual server only runs on one of them. There is also a disaster-tolerant implementation called SplitSite.

Though only Windows-based to date, Turnbull indicated that a Linux version is in development. “But users are not running critical applications on Linux,” he rather bravely suggested.

One environment that is a strong base for critical applications is Java and following the rapprochement between Microsoft and Sun Microsytems, and the appearance of news tools to allow Windows applications to run in Java (and vice versa) this could prove to be a useful tool for developers in both camps looking to offer HA operations without recourse to more traditional and expensive options. ®

Top 5 reasons to deploy VMware with Tegile

More from The Register

next story
PEAK APPLE: iOS 8 is least popular Cupertino mobile OS in all of HUMAN HISTORY
'Nerd release' finally staggers past 50 per cent adoption
Microsoft to bake Skype into IE, without plugins
Redmond thinks the Object Real-Time Communications API for WebRTC is ready to roll
Microsoft promises Windows 10 will mean two-factor auth for all
Sneak peek at security features Redmond's baking into new OS
Mozilla: Spidermonkey ATE Apple's JavaScriptCore, THRASHED Google V8
Moz man claims the win on rivals' own benchmarks
Yes, Virginia, there IS a W3C HTML5 standard – as of now, that is
You asked for it! You begged for it! Then you gave up! And now it's HERE!
FTDI yanks chip-bricking driver from Windows Update, vows to fight on
Next driver to battle fake chips with 'non-invasive' methods
DEATH by PowerPoint: Microsoft warns of 0-day attack hidden in slides
Might put out patch in update, might chuck it out sooner
Ubuntu 14.10 tries pulling a Steve Ballmer on cloudy offerings
Oi, Windows, centOS and openSUSE – behave, we're all friends here
prev story

Whitepapers

Cloud and hybrid-cloud data protection for VMware
Learn how quick and easy it is to configure backups and perform restores for VMware environments.
Getting started with customer-focused identity management
Learn why identity is a fundamental requirement to digital growth, and how without it there is no way to identify and engage customers in a meaningful way.
Reg Reader Research: SaaS based Email and Office Productivity Tools
Read this Reg reader report which provides advice and guidance for SMBs towards the use of SaaS based email and Office productivity tools.
New hybrid storage solutions
Tackling data challenges through emerging hybrid storage solutions that enable optimum database performance whilst managing costs and increasingly large data stores.
Website security in corporate America
Find out how you rank among other IT managers testing your website's vulnerabilities.