1 Azure Disks performance gets 4x speed2 Cost efficiency with smaller Premium Managed Disks
Specifically, Microsoft has extended the maximum size of the disks from 1.024 GB to 4.095 GB, enabling customers to add quadruple disk storage size per Virtual Machine. As a result, customers will no longer need to scale up to multiple VMs or stripe multiple disks to provision larger disk capacity. Additionally, Redmond says in the announcement blog post that two new disk sizes are now available. Disk sizes P40 (2TB) and P50 (4TB) are now available for Premium Managed and Unmanaged disks. As for Standard Managed disks, the new disk sizes are S40 (2TB) and S50 (4TB). Large Disks are currently available in all Azure regions except sovereign clouds, which includes US Gov, US DOD, Germany, and China. Microsoft explains that there will be large disks available in sovereign clouds in a few weeks. Here are the new disk sizes:
Azure Disks performance gets 4x speed
Of course, along with the big increase in storage size comes a great improvement to the performance of disks in Azure Disks. The maximum Premium Disk IOPS and bandwidth of Premium Managed and Unmanaged Disks is increased to 7,500 IOPS and 250MBps respectively. Standard Disks of all sizes will offer up to 500 IOPS and 60MBps. Needless to say, users can also resize their existing disks to larger disk sizes on top of being able to create new ones. They can do so with their existing Azure tools through Azure Resource Manager (ARM). Here are the new IOPS and Bandwidth rates for all disks in Azure Disks:
Cost efficiency with smaller Premium Managed Disks
Furthermore, this update brings two new disk sizes for Premium Managed Disks which are ideal for scenarios that require consistent disk performance with lower disk capacity, such as the OS disks for Linux VMs. The new sizes are P4 (32GB) and P6 (64GB). All Premium Managed Disks created after June 15th, 2017 with disk size between 33GB and 64GB will be provisioned as P6 Premium Disks. If the size is less than or equal to 32GB, they will be considered P4 Premium Disks. Here are the specs of the new Smaller Premium Managed Disks:
