If I changed performance tier to P40 of a managed disk of size 500 GiB, how it's cost would be analyzed?

Question

If I changed performance tier to P40 of a managed disk of size 500 GiB, how it's cost would be analyzed?

Kavita Bhatnagar 45

If I changed performance tier from P20 to P40 of a managed disk of size 500 GiB, how it's cost would be analyzed?

SadiqhAhmed-MSFT 49,331 Reputation points Microsoft Employee Moderator

2023-08-04T20:38:52.95+00:00

@Kavita Bhatnagar When you change the performance tier of a managed disk, your billing changes as well. The cost of the disk is based on the performance tier and the provisioned size of the disk.

In your case, if you change the performance tier of a 500 GiB managed disk from P20 to P40, the cost of the disk will increase. The P20 performance tier has a baseline of 500 IOPS and 100 MBps, while the P40 performance tier has a baseline of 2,500 IOPS and 200 MBps.

When you change the performance tier from P20 to P40, you will be billed at the P40 rate. The cost of the disk will be based on the provisioned size of the disk and the P40 rate. You can find the current pricing for managed disks on the Azure website.

It's important to note that changing the performance tier of a managed disk can have billing implications, so it's important to understand the costs before making any changes. You can use the Azure pricing calculator to estimate the cost of your managed disks based on the performance tier and provisioned size.
SadiqhAhmed-MSFT 49,331 Reputation points Microsoft Employee Moderator

2023-08-08T08:08:00.84+00:00

@Kavita Bhatnagar Just checking in to see if you got a chance to see my response and if it helped, I would request you to "Accept Answer and Upvote" so that the relevancy of this post will improve when anyone in the community search for a similar query.

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SadiqhAhmed-MSFT 49,331 Reputation points Microsoft Employee Moderator

2023-08-04T20:38:52.95+00:00

@Kavita Bhatnagar When you change the performance tier of a managed disk, your billing changes as well. The cost of the disk is based on the performance tier and the provisioned size of the disk.

In your case, if you change the performance tier of a 500 GiB managed disk from P20 to P40, the cost of the disk will increase. The P20 performance tier has a baseline of 500 IOPS and 100 MBps, while the P40 performance tier has a baseline of 2,500 IOPS and 200 MBps.

When you change the performance tier from P20 to P40, you will be billed at the P40 rate. The cost of the disk will be based on the provisioned size of the disk and the P40 rate. You can find the current pricing for managed disks on the Azure website.

It's important to note that changing the performance tier of a managed disk can have billing implications, so it's important to understand the costs before making any changes. You can use the Azure pricing calculator to estimate the cost of your managed disks based on the performance tier and provisioned size.
SadiqhAhmed-MSFT 49,331 Reputation points Microsoft Employee Moderator

2023-08-08T08:08:00.84+00:00

@Kavita Bhatnagar Just checking in to see if you got a chance to see my response and if it helped, I would request you to "Accept Answer and Upvote" so that the relevancy of this post will improve when anyone in the community search for a similar query.

Answer 1

TP 125.8K Volunteer Moderator

Hi Kavita,

If you change Performance Tier to P40, you will be billed at P40 rate until you downgrade it back to the baseline P20. Below document has details and lists restrictions (such as only being able to downgrade once per 12 hours):

https://learn.microsoft.com/en-us/azure/virtual-machines/disks-performance-tiers?tabs=azure-cli#restrictions

Managed Disks pricing

https://azure.microsoft.com/en-us/pricing/details/managed-disks/

Please click Accept Answer if the above was useful. Add a comment if something is unclear or you still need assistance.

Thanks.

-TP

Kavita Bhatnagar 45 Reputation points

2023-08-08T08:43:59.1633333+00:00

Thanks TP

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If I changed performance tier to P40 of a managed disk of size 500 GiB, how it's cost would be analyzed?

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