Disaster RecoveryTag Archive

In times where you need to run through your BCP drill, it is important to know and understand the reasons why you need to exercise your Business Continuity Plan drill, and where it fits in with the rest of your Disaster Recovery Plan (DRP or DR Plan). Your BCP Drill… Continue Reading The BCP Drill

Often misunderstood, but the concept of “design for failure” is now common in the lexicon of system design and business operations. When you design for failure, it is not because you want to fail – instead it is with the understanding that failures can and do happen, but you want… Continue Reading How to design for failures

The problem with backups Legacy approaches to backup in the IT industry are largely focussed on performing a backup of an entire server. This means that multiple backups will contain a full copy of the Windows operating system, and other files that will never need to be restored. Follow this… Continue Reading Backup for cloud

We have all had it before – something that has been around for a long time, and we have no idea if it is important any more – but no-one will take the ownership to declare that it can be disposed of. This is where the Scream Test comes in.… Continue Reading The Scream Test

How much does it cost to manage your data? In an early job, I was making a projection to purchase more disk to expand capacity on our Exchange mailbox servers. At the time, disk was relatively expensive, and the capacity that I had projected for 3 years would have also… Continue Reading Save Money – by buying more disk

I recommend that all businesses perform a paper exercise of running a BCP drill, as a way to tease out the conceptual and procedural issues related with planning for business continuity. It can be a desktop process of running through the BCP plan, and it helps to have a critical… Continue Reading The BCP Drill

It has finally happened – many years ago, when I worked at VMware, there were internal rumors of a rebootless upgrade being worked on since vSphere 5.0. And now, with the release of vSphere 6.7, you can upgrade the hypervisor without rebooting. What happens is the hypervisor will re-load, without… Continue Reading VMware rebootless upgrades are here!

Are you retaining a backup for 10+ years? Can you still use the data? How useful are your backups? A necessary burden Backups are a necessary task for all businesses. A hundred years ago, if there was a fire at a business, then everything would be lost – a paper… Continue Reading How useful are your backups?

We learn more from our mistakes than we do from our successes, but it is better to learn from other’s mistakes, because you don’t need to suffer. In many encounters during my career, I have learnt from the failures that occur during disasters. The disasters in disaster recovery may not… Continue Reading Disasters in disaster recovery

Disaster Recovery is the process by which an organisation recovers its business operations after a disaster. It often is a focus of the IT department, however it is a business responsibility. Business Continuity Plans are the ability for an organisation to know how they will continue to provide business operations… Continue Reading Disaster Recovery Planning – How To

You may know about ToR, top-of-rack (for) switches. It’s the practice of placing a physical switch within each rack, so that the network switching for the rack is close to the servers or devices that need to connect to it. The ToR switches will allow servers to communicate with each… Continue Reading Top of Rack switch placement in a rack – not at the Top!

The concept of “Design for Failure” is often used to describe the approach that assumes that there will be a hardware or system failure somewhere, sometime – and instead of architecting for hardware and server clustering and availability, to design applications so that recovery can be performed quickly. Where the… Continue Reading Design for Failure

What is an ‘Older Worker’? According to a Chandler McLeod report: “Coming of Age – The impacts of an ageing workforce on Australian business”, “variations exist in the definition of an employee as ‘older’ or ‘mature aged’. The Department of Education, Employment and Workplace Relations classifies workers and job seekers… Continue Reading Aging workforce and obsolete computer systems

If you are new to using the cloud, or are now deciding to move more workloads to the cloud – here are my top 10 tips for cloud adoption 1. Switch off dev/test when not using it Probably the biggest advice I can give is to understand the differences between… Continue Reading Top 10 tips for cloud adoption

VMware are often focussing on the latest and greatest features and capabilities offered by their newest software. Of course, they are always driving forward and the next version’s enhancements and benefits are forefront of their minds – but there are still some people out there who are just starting on… Continue Reading Benefits of VMware – the uneven cluster

Running release R minus 1? What about release R plus 45 days? We all know the Patch Tuesday update cycle where Microsoft releases their updates. It is common practice for risk-averse companies to not run the very latest release of software, instead having a policy of running “R-1” – which… Continue Reading R-1 is dead, long live R+45

I always recommend to create a dedicated management cluster for your vSphere virtual environment, but what is a dedicated management cluster, and why is it so important to have one? Not only is it best practice, there are real reasons why you should choose to do this. What is a… Continue Reading Dedicated Management Cluster

DIY is dead. The time when you could “do it yourself” is no longer relevant for IT Infrastructure. It may take a while for it to happen, but it has happened before – to desktop PCs. Approximately 20 years ago, it was both cheaper and easier (if you knew how) to… Continue Reading The era of infrastructure DIY is dead

Assumptions are often made that if you have storage, you need to use RAID. If you have moving parts like fans, the assumption is that you need a hot spare (or at least the ability to hot replace the part), and then it goes on to redundant network connections, warm… Continue Reading The concept of redundancy – is it redundant?