Access your Pro+ Content below.
Server virtualisation: A perfect fit for your DR plan
This article is part of the IT in Europe issue of June 2011
In the days before server virtualisation, it was mainly large enterprises that could afford a DR plan that entailed duplicating their entire server estate and having it sit around doing nothing. All that changed with the arrival into the mainstream of server virtualisation, which eliminated the requirement that the secondary site be a hardware carbon copy of the primary one. A key benefit of virtualisation is its ability to save on disaster recovery infrastructure and that brings DR within the range of companies that were previously unable to afford it. DR requires restoration of an entire system quickly and easily, and virtualisation scores big here. Because a VM is independent of hardware, it's easy to move or copy a server from one physical server to another server that you can recover from in case of disastrous events. Meanwhile, the falling cost of bandwidth means you can use remote offices as DR sites. Even applications that do not run on virtual servers can be virtualised when replicated. If a mirrored virtual server runs...
Access this CW+ Content for Free!
Features in this issue
Server virtualisation allows for quicker disaster recovery. See how two UK IT organisations are using server virtualisation to save on DR planning.
Snapshot-based backup, also known as near-continuous data protection, is one of the most efficient ways to provide operational recovery, and you can forget about backup windows.
Common wisdom says you need block storage for virtual servers; but with most hypervisors supporting the NFS protocol, NAS may work just as well.
Anyone who has struggled with configuring storage for VMware virtual servers will be happy to hear help is at hand; just look inside your storage array.
Overwhelmed by all the buzz around server virtualization? There are still solid alternatives -- with real benefits -- to virtualizing storage systems.
Hybrid cloud storage products provide the best of both worlds -- local storage that's tightly integrated with off-site cloud storage services.