Merge pull request #268037 from roygara/perfSEO

Updating articles to point to Ultra / PV2 performance changing sections

Author: prmerger-automator[bot]

articles/virtual-machines/disks-change-performance.md

@@ -4,7 +4,7 @@ description: Learn about performance tiers for managed disks.
 author: roygara
 ms.service: azure-disk-storage
 ms.topic: how-to
-ms.date: 05/23/2023
+ms.date: 03/04/2024
 ms.author: rogarana
 ms.custom: references_regions
 ---
@@ -13,7 +13,10 @@ ms.custom: references_regions
 
 **Applies to:** :heavy_check_mark: Linux VMs :heavy_check_mark: Windows VMs :heavy_check_mark: Flexible scale sets :heavy_check_mark: Uniform scale sets
 
-The performance of your Azure managed disk is set when you create your disk, in the form of its performance tier. When you set the provisioned size of your disk, a performance tier is automatically selected. The performance tier determines the IOPS and throughput your managed disk has. The performance tier can be changed at deployment or afterwards, without changing the size of the disk and without downtime.
+> [!NOTE]
+> This article focuses on how to change performance tiers. To learn how to change the performance of disks that don't use performance tiers, like Ultra Disks or Premium SSD v2, see either [Adjust the performance of an ultra disk](disks-enable-ultra-ssd.md#adjust-the-performance-of-an-ultra-disk) or [Adjust disk performance of a Premium SSD v2](disks-deploy-premium-v2.md#adjust-disk-performance)
+
+The performance of Premium solid-state drives (SSD) is set when you create your disk, in the form of their performance tier. When you set the provisioned size of your disk, a performance tier is automatically selected. The performance tier determines the IOPS and throughput your managed disk has. For Premium SSD disks only, the performance tier can be changed at deployment or afterwards, without changing the size of the disk, and without downtime.
 
 Changing the performance tier allows you to prepare for and meet higher demand without using your disk's bursting capability. It can be more cost-effective to change your performance tier rather than rely on bursting, depending on how long the additional performance is necessary. This is ideal for events that temporarily require a consistently higher level of performance, like holiday shopping, performance testing, or running a training environment. To handle these events, you can switch a disk to a higher performance tier without downtime, for as long as you need the additional performance. You can then return to the original tier without downtime when the additional performance is no longer necessary.
 

articles/virtual-machines/disks-deploy-premium-v2.md

@@ -198,7 +198,7 @@ You've now deployed a VM with a premium SSD v2.
 
 ## Adjust disk performance
 
-Unlike other managed disks, the performance of Premium SSD v2 disks can be configured independently of its size by using the Azure CLI and PowerShell. Making adjustments to disk performance by using the Azure portal is not currently supported. 
+Unlike other managed disks, the performance of Premium SSD v2 disks can be configured independently of its size by using the Azure CLI and PowerShell. Making adjustments to disk performance by using the Azure portal is not currently supported. You can adjust the performance of a Premium SSD v2 disk four times within a 24 hour period.
 
 For conceptual information on adjusting disk performance, see [Premium SSD v2 performance](disks-types.md#premium-ssd-v2-performance).
 

articles/virtual-machines/disks-enable-ultra-ssd.md

@@ -4,7 +4,7 @@ description: Learn about ultra disks for Azure VMs
 author: roygara
 ms.service: azure-disk-storage
 ms.topic: how-to
-ms.date: 12/05/2023
+ms.date: 03/05/2024
 ms.author: rogarana
 ms.custom: references_regions, devx-track-azurecli, devx-track-azurepowershell, devx-track-arm-template
 ---
@@ -445,7 +445,7 @@ Update-AzVM -VM $vm -ResourceGroupName $resourceGroup
 
 # [Portal](#tab/azure-portal)
 
-Ultra disks offer a unique capability that allows you to adjust their performance. You can make these adjustments from the Azure portal, on the disks themselves.
+Ultra disks offer a unique capability that allows you to adjust their performance. You can adjust the performance of an Ultra Disk four times within a 24 hour period.
 
 1. Navigate to your VM and select **Disks**.
 1. Select the ultra disk you'd like to modify the performance of.
@@ -459,7 +459,7 @@ Ultra disks offer a unique capability that allows you to adjust their performanc
 
 # [Azure CLI](#tab/azure-cli)
 
-Ultra disks offer a unique capability that allows you to adjust their performance, the following command depicts how to use this feature:
+Ultra disks offer a unique capability that allows you to adjust their performance. You can adjust the performance of an Ultra Disk four times within a 24 hour period. The following command depicts how to use this feature:
 
 ```azurecli-interactive
 az disk update --subscription $subscription --resource-group $rgname --name $diskName --disk-iops-read-write=5000 --disk-mbps-read-write=200
@@ -469,7 +469,7 @@ az disk update --subscription $subscription --resource-group $rgname --name $dis
 
 ## Adjust the performance of an ultra disk using PowerShell
 
-Ultra disks have a unique capability that allows you to adjust their performance, the following command is an example that adjusts the performance without having to detach the disk:
+Ultra disks have a unique capability that allows you to adjust their performance. You can adjust the performance of an Ultra Disk four times within a 24 hour period. The following command is an example that adjusts the performance without having to detach the disk:
 
 ```powershell
 $diskupdateconfig = New-AzDiskUpdateConfig -DiskMBpsReadWrite 2000

articles/virtual-machines/disks-performance-tiers-portal.md

@@ -4,7 +4,7 @@ description: Learn how to change performance tiers for new and existing managed
 author: roygara
 ms.service: azure-disk-storage
 ms.topic: how-to
-ms.date: 08/30/2022
+ms.date: 03/04/2024
 ms.author: rogarana
 ms.custom: references_regions
 ---

articles/virtual-machines/disks-performance-tiers.md

@@ -4,7 +4,7 @@ description: Learn how to change performance tiers for existing managed disks us
 author: roygara
 ms.service: azure-disk-storage
 ms.topic: how-to
-ms.date: 05/23/2023
+ms.date: 03/04/2024
 ms.author: rogarana
 ms.custom: references_regions, devx-track-azurecli, devx-track-azurepowershell
 ---

articles/virtual-machines/disks-types.md

@@ -69,7 +69,7 @@ The following table provides a comparison of disk sizes and performance caps to
 
 ### Ultra disk performance
 
-Ultra disks are designed to provide low sub millisecond latencies and provisioned IOPS and throughput 99.99% of the time. Ultra disks also feature a flexible performance configuration model that allows you to independently configure IOPS and throughput, before and after you provision the disk. Ultra disks come in several fixed sizes, ranging from 4 GiB up to 64 TiB.
+Ultra disks are designed to provide low sub millisecond latencies and provisioned IOPS and throughput 99.99% of the time. Ultra disks also feature a flexible performance configuration model that allows you to independently configure IOPS and throughput, before and after you provision the disk. You can adjust the performance of an Ultra Disk four times within a 24 hour period. Ultra disks come in several fixed sizes, ranging from 4 GiB up to 64 TiB.
 
 ### Ultra disk IOPS
 
@@ -116,7 +116,7 @@ Unlike Premium SSDs, Premium SSD v2 doesn't have dedicated sizes. You can set a
 
 ### Premium SSD v2 performance
 
-Premium SSD v2 disks are designed to provide sub millisecond latencies and provisioned IOPS and throughput 99.9% of the time. With Premium SSD v2 disks, you can individually set the capacity, throughput, and IOPS of a disk based on your workload needs, providing you with more flexibility and reduced costs. Each of these values determines the cost of your disk. 
+Premium SSD v2 disks are designed to provide sub millisecond latencies and provisioned IOPS and throughput 99.9% of the time. With Premium SSD v2 disks, you can individually set the capacity, throughput, and IOPS of a disk based on your workload needs, providing you with more flexibility and reduced costs. Each of these values determines the cost of your disk. You can adjust the performance of a Premium SSD v2 disk four times within a 24 hour period.
 
 #### Premium SSD v2 capacities
 

includes/disks-prem-v2-limitations.md

@@ -19,5 +19,4 @@ ms.custom:
 - Azure Site Recovery isn't supported for VMs with Premium SSD v2 disks.
 - Azure Backup support for VMs with Premium SSD v2 disks is [generally available](/azure/backup/backup-support-matrix-iaas#vm-storage-support).
 - The size of a Premium SSD v2 can't be expanded without either deallocating the VM or detaching the disk.
-- Premium SSDv2 doesn't support host caching.
-- The performance of Premium SSD v2 can only be changed four times within a 24 hour period.
+- Premium SSDv2 doesn't support host caching.

includes/managed-disks-ultra-disks-GA-scope-and-limitations.md

@@ -22,7 +22,6 @@ The following list contains Ultra Disks's limitations:
 - Currently only supports Single VM and Availability zone infrastructure options.
 - Snapshots are supported with [additional limitations](../articles/virtual-machines/disks-incremental-snapshots.md#incremental-snapshots-of-premium-ssd-v2-and-ultra-disks).
 - Azure Backup support for VMs with Ultra Disks is [generally available](../articles/backup/backup-support-matrix-iaas.md#vm-storage-support). Azure Backup has limitations when using Ultra Disks, see [VM storage support](../articles/backup/backup-support-matrix-iaas.md#vm-storage-support) for details.
-- The performance of Ultra Disks can only be changed four times within a 24 hour period.
 
 Ultra disks support a 4k physical sector size by default but also supports a 512E sector size. Most applications are compatible with 4k sector sizes, but some require 512-byte sector sizes. Oracle Database, for example, requires release 12.2 or later in order to support 4k native disks. For older versions of Oracle DB, 512-byte sector size is required.
 

includes/virtual-machines-disks-performance-tiers-intro.md

@@ -5,11 +5,14 @@
  author: roygara
  ms.service: virtual-machines
  ms.topic: include
- ms.date: 08/30/2022
+ ms.date: 03/04/2024
  ms.author: rogarana
  ms.custom: include file
 ---
 
+> [!NOTE]
+> This article focuses on how to change performance tiers. To learn how to change the performance of disks that don't use performance tiers, like Ultra Disks or Premium SSD v2, see either [Adjust the performance of an ultra disk](../articles/virtual-machines/disks-enable-ultra-ssd.md#adjust-the-performance-of-an-ultra-disk) or [Adjust disk performance of a Premium SSD v2](../articles/virtual-machines/disks-deploy-premium-v2.md#adjust-disk-performance)
+
 The performance of your Azure managed disk is set when you create your disk, in the form of its performance tier. The performance tier determines the IOPS and throughput your managed disk has. When you set the provisioned size of your disk, a performance tier is automatically selected. The performance tier can be changed at deployment or afterwards, without changing the size of the disk and without downtime. To learn more about performance tiers, see [Performance tiers for managed disks](../articles/virtual-machines/disks-change-performance.md).
 
 Changing your performance tier has billing implications. See [Billing impact](../articles/virtual-machines/disks-change-performance.md#billing-impact) for details.