Feeds

When hybrid clouds are a mixed blessing

Aiming for the best of both worlds

Beginner's guide to SSL certificates

Cloud computing is a perfect fit for some, while others prefer the flexibility, security and certainty of in-house applications.

Between the two are those looking to embrace the cloud without throwing their IT investments out with the bath water, and for them the hybrid cloud seems to be the way forward.

What is involved and can the hybrid cloud really be made to work?

Rental market

The concept is simple: keep some in-house servers and applications while moving others to the cloud.

One way of doing this is to rent virtual server space and host your applications there. Another is to switch to applications such as salesforce.com and Google Apps, with providers that manage both the servers and applications for you.

Either way, deciding which applications or bits of applications to keep in-house and which to put out to the cloud is far from simple. Nor is it easy to gauge the success or otherwise of a pilot scheme, particularly if you start to factor in concerns about data sovereignty.

Some applications cry out to be in the cloud. Remote hosting of email and collaboration servers, for example, is commonplace and no more difficult or less secure than running Exchange, say, on your own servers.

Test the water

Moreover, those who don’t want hassle can simply rent mailboxes from an ever-growing army of providers.

The ready availability of established and well supported communication protocols makes it easy to connect messaging and collaboration clients, such as Outlook or even the latest mobile devices, with host servers.

And because communication is largely asynchronous, the servers can be on-premise, hosted or mixed together for a truly hybrid solution. Moreover it is easy enough to run a pilot and gauge performance, both from the user standpoint and by direct measurement, before committing to full-scale migration.

Application development is equally suited to the hybrid life, particularly when it comes to testing and debugging.

Lacklustre performance

Here the ability to source processing resources on demand from services, such as the Amazon EC2, or to develop straight onto a platform like Microsoft’s Windows Azure, can both save money and shorten development timescales.

Other applications, however, are less well suited. Google Apps, for example, has failed to win many users away from the on-premise Office suite, mainly due to its lack of functionality and performance.

Neither have customer relationship management or helpdesk services had that much impact – at least, not as software-as-a-service solutions, although they are routinely hosted on private or public cloud servers rather than in-house.

Availability is a real problem with online storage too

Other applications that struggle include backup, disaster recovery and more general sharing of storage.

Again, that is partly due to a lack of performance, as it is quicker to share files, take backups and recover crashed systems over a Fibre Channel or iSCSI SAN than across the Internet.

Equally, a lack of protocol and API standardisation make it hard to integrate on-premise and cloud storage, especially where more than one vendor is involved.

In addition, hybrid storage raises issues of data security, integrity and ownership. Availability is a real problem with online storage too, with services that come and go – even those from the big boys such as EMC, which last year pulled the plug on its cloud storage platform Atmos leaving its partners to pick up the pieces.

Caveat emptor

So the upshot is: buyer beware. There are certainly plenty of cloud computing resources that can be mixed and matched with on-premise solutions, and benefits to be gained from such an approach.

You just need to take it slowly, test what seems to makes the most sense, and be sure it is working before taking off entirely into the cloud. ®

Beginner's guide to SSL certificates

More from The Register

next story
Nexus 7 fandroids tell of salty taste after sucking on Google's Lollipop
Web giant looking into why version 5.0 of Android is crippling older slabs
Heyyy! NICE e-bracelet you've got there ... SHAME if someone were to SUBPOENA it
Court pops open cans of worms and whup-ass in Fitbit case
SLURP! Flick your TONGUE around our LOLLIPOP – Google
Android 5 is coming – IF you're lucky enough to have the right gadget
Official: European members prefer to fondle Apple iPads
Only 7 of 50 parliamentarians plump for Samsung Galaxy S
Fujitsu CTO: We'll be 3D-printing tech execs in 15 years
Fleshy techie disses network neutrality, helmet-less motorcyclists
Space Commanders rebel as Elite:Dangerous kills offline mode
Frontier cops an epic kicking in its own forums ahead of December revival
The IT Crowd's internet in a box gets $240k of crowdcash for a cause
'Outernet' project proposes satellite-fuelled 'Lantern' WiFi library for remote areas
prev story

Whitepapers

Why cloud backup?
Combining the latest advancements in disk-based backup with secure, integrated, cloud technologies offer organizations fast and assured recovery of their critical enterprise data.
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.
Internet Security Threat Report 2014
An overview and analysis of the year in global threat activity: identify, analyze, and provide commentary on emerging trends in the dynamic threat landscape.
Storage capacity and performance optimization at Mizuno USA
Mizuno USA turn to Tegile storage technology to solve both their SAN and backup issues.