How to increase IOPS for standard Azure VM

Recently I faced a performance problem with one of my systems based on several standard Azure virtual machines. The problem was connected with high disk response time during heavy workload. Of course, the easiest solution was to move all VMs to a premium storage account. But it could increase my expenses. So, I started to investigate other ways to do it and found one.  Continue reading

Understanding Azure Point-to-Site VPN

I hope that the previous article about Azure Networks was useful. And now you know the main features of Azure Virtual Networks, Network Security Groups and so on. The next task for us will be to connect remote users to our Azure Network. Typical solution for this task is VPN. Azure can work with two VPN types – Site-To-Site VPN to connect your On-Premises or another Azure network, or Point-To-Site VPN to connect remote users. With this article I want to describe how to configure Azure Point-To-Site VPN with resource management model.

There is the diagram of the planned solution:

vpn1

We have a virtual network with our cloud infrastructure. We want to connect our users to it with high security level. Continue reading

Understanding Azure virtual networks

With this article I want to describe main features and usage scenarios of Azure virtual networks at the resource management model. Lets imagine a typical infrastructure of a hybrid corporate network.

Scheme-Net1

To provide communication between virtual machines in the cloud, they must belong to the same virtual network. Each network must have at least one subnet. A virtual network can be connected to your on-premises infrastructure or another cloud infrastructure via VPN. Everything is easy and clear. Continue reading

How to change the type of virtual machine in Azure

Microsoft Azure can provide you several classes of virtual machines. Classes A and D are available at any datacenter. Class G is available only at several US datacenters. The main difference is the type of processor. For G type it’s announced that there is Xeon E5 is used. For A and D classes there is no official information about processor types.  We only know that D class is 60% faster than A class. Continue reading