Disaster Recovery – Do you really need one?

 Last week, Microsoft announced the Preview of Capacity Reservation for VMs. You can reserve VM capacity in your DR region to ensure that you have VM resources available to create or turn on your protected VMs using ASR. ASR does not guarantee that your VMs can be turned on in your DR region in the event of disaster recovery. So, capacity reservation is a welcome feature and much needed. However, this is increasing the cost of your solution again.

  • Cost factors
    • VM cost
    • ASR protected VM cost
    • Capacity Reservation Cost ( as same as your actual VM cost)
    • other costs

Note: DR is not just the VMs but including other components. I did not provide the details above because it applies to both the options.

Hmm.. Can we plan a DR cost-effectively in Azure? Let’s take a look:

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Review of Preview – Azure Capacity Reservation

The long waiting feature is now Public Preview. When there is a Azure region disaster recovery, we need our VMs to be turned on in the secondary region. This feature guarantees you the recovery. You may learn about this feature in this URL

As you know already, Azure Site Recovery does not 100% guarantee to turn on your VMs in the event of DR. This feature addition helps you gaining more confidence with your BCP with this feature addition. 

  • Take a look at the Microsoft statement about the use cases for this feature. 
    • Business-critical applications—use on-demand capacity reservations to protect your capacity, for example when taking these VMs offline to perform updates.
    • Disaster recovery—you now have the option to set aside compute capacity to ensure a seamless recovery in the event of a natural disaster. The compute capacity can be repurposed to run other workloads whenever DR is not in effect. The VM maintenance can be handled by keeping core images up to date without the need to deploy or maintain VMs outside of DR testing.
    • Special events—claiming capacity ahead of time provides assurance that your business can handle the extra demand.

I have been asking for this feature for a long time now, and finally, it is here. I am happy about Microsoft as they are listening to customers and partners. However, the first bullet point is a bit worrisome as it states, It is not guaranteed to get your VM back if it is offline for some time due to maintenance. Does MSFT force customers to take this for all the critical workload? I hope they do not make things worse to this point. 

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CHANGE is the New Standard for the Cloud Adoption

What are the standards we should follow when we move on to Public Cloud?

We often get this questions during the Public Cloud conversations with different stakeholders. I would say ‘Change’ should be standard. Ahh…What?

  • Be ready to accept a Change
  • Be ready to execute a Change.
  • Be ready to prepare for future Changes.

The change should start from the minds of people. That means develop a mindset to accept a change is the first thing in the transformation journey. It is the first barrier as we know that each of us are comfortable to continue with existing system because change will bring interruptions, nobody like interruptions.

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What makes you a great presenter ? Confidence

Confidence makes you a good presenter. So, what gets you confidence? It is information, the more you know… the more you build the confidence.

Let me write today my story how I developed presentation skills. Now a days I do lot of presentations to clients across the world. It is mostly around technical stuff predominately around Azure which is obvious as I am an Azure Architect. If I look few year back, I used to get nervous about it. Over the time especially after I moved in to DXC Azure team, I have been given lot of opportunity present in front of internal as well as client senior leadership. Initial days I struggled bit as I was in the hands of fear which we can call it as stage fright.

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All About Azure Reservation – Disks

We talked about Azure Reservation for VM in my previous blog post. If you have not read it already, I suggest you to read it.

The VM RI discounts applicable only to the VM infrastructure cost but it does not include disks or storage used. Azure Disk Storage reservations combined with Azure reserved VM instances help you reduce total VM cost.

The common rules are applicable here as well “Use it or Lose it”,

Currently, Azure Disk Storage reservations are available only for selected Azure premium SSD SKUs. But it doesn’t apply to unmanaged, ultra disks and page blob consumption.

disk reservation

The reservation for disk is not based on capacity but it is based on total number of disks per SKU. That means you make reservation consumption based on the units of the disk SKUs instead of the provided size. Example, you cannot use P40 reservation for 2 P30 disks. It is does not have instance flexibility like in VM reservations.

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