new large volume topic

Author: b-ahibbard

articles/azure-netapp-files/TOC.yml

@@ -99,6 +99,8 @@
       href: regional-capacity-quota.md
     - name: Understand default and individual user and group quotas
       href: default-individual-user-group-quotas-introduction.md
+    - name: Understand large volumes 
+      href: large-volumes.md
     - name: Requirements and considerations for large volumes
       href: large-volumes-requirements-considerations.md
   - name: Performance

articles/azure-netapp-files/azure-netapp-files-understand-storage-hierarchy.md

@@ -77,7 +77,7 @@ When you use a manual QoS capacity pool with, for example, an SAP HANA system, a
 
 ## Large volumes
 
-Azure NetApp Files allows you to create large volumes up to 1 PiB in size. Large volumes begin at a capacity of 50 TiB and scale up to 1 PiB. Regular Azure NetApp Files volumes are offered between 50 GiB and 102,400 GiB. 
+Azure NetApp Files allows you to create [large volumes](large-volumes.md) up to 1 PiB in size. Large volumes begin at a capacity of 50 TiB and scale up to 1 PiB. Regular Azure NetApp Files volumes are offered between 50 GiB and 102,400 GiB. 
 
 For more information, see [Requirements and considerations for large volumes](large-volumes-requirements-considerations.md).
 
@@ -88,4 +88,5 @@ For more information, see [Requirements and considerations for large volumes](la
 - [Performance considerations for Azure NetApp Files](azure-netapp-files-performance-considerations.md)
 - [Create a capacity pool](azure-netapp-files-set-up-capacity-pool.md)
 - [Manage a manual QoS capacity pool](manage-manual-qos-capacity-pool.md)
+- [Understand large volumes](large-volumes.md)
 - [Requirements and considerations for large volumes](large-volumes-requirements-considerations.md)

articles/azure-netapp-files/large-volumes-requirements-considerations.md

@@ -118,6 +118,7 @@ If this is your first time using large volumes, register the feature with the [l
 
 ## Next steps
 
+* [Understand large volumes](large-volumes.md)
 * [Storage hierarchy of Azure NetApp Files](azure-netapp-files-understand-storage-hierarchy.md)
 * [Resource limits for Azure NetApp Files](azure-netapp-files-resource-limits.md)
 * [Create an NFS volume](azure-netapp-files-create-volumes.md)

articles/azure-netapp-files/large-volumes.md

@@ -6,15 +6,30 @@ author: b-ahibbard
 ms.service: azure-netapp-files
 ms.custom: references_regions
 ms.topic: conceptual
-ms.date: 10/18/2024
+ms.date: 10/29/2024
 ms.author: anfdocs
 ---
 # Understand large volumes in Azure NetApp Files 
 
+Volumes in Azure NetApp Files are the way you present high performance, cost-effective storage to your network attached storage (NAS) clients in the Azure cloud. Volumes act as independent file systems with their own capacity, file counts, ACLs, snapshots and file system IDs, which provides a way to separate datasets into individual secure tenants.
 
+:::image type="content" source="./media/large-volumes/large-volumes-diagram.png" alt-text="Diagram of large and regular volume size." lightbox="./media/large-volumes/large-volumes-diagram.png":::
 
-Volumes in Azure NetApp Files are the way you present high performance, cost-effective storage to your network attached storage (NAS) clients in the Azure cloud. Volumes act as independent file systems with their own capacity, file counts, ACLs, snapshots and file system IDs, which provides a way to separate datasets into individual secure tenants.
+All resources in Azure NetApp files have [limits](azure-netapp-files-resource-limits.md). _Regular_ volumes have the following limits: 
+
+| Limit type | Limits | 
+| - | - | 
+| Capacity | <ul><li>50 GiB minimum</li><li>100 TiB maximum</li></ul> |
+| File count | 2,147,483,632 |
+| Performance | <ul><li>Standard:1,600</li><li>Premium: 1,600</li><li>Ultra: 4,500</li></ul> |
 
+Large volumes have the following limits: 
+
+| Limit type | Values | 
+| - | - | 
+| Capacity | <ul><li>50 TiB minimum</li><li>1 PiB maximum (or [2 PiB by special request](azure-netapp-files-resource-limits.md#request-limit-increase))</li></ul> |
+| File count | 15,938,355,048 |
+| Performance | <ul><li>Standard: 1,600</li><li>Premium: 6,400</li><li>Ultra: 12,800</li></ul> |
 
 
 ## Large volumes effect on performance 
@@ -25,4 +40,25 @@ For instance, the following graphs show that a large volume can deliver 2-3x the
 
 For more information about performance tests, see [Large volume performance benchmarks for Linux](performance-large-volumes-linux.md) and [Regular volume performance benchmarks for Linux](performance-benchmarks-linux.md).
 
-For example, benchmarks using FIO, a large volume was capable of higher IOPS and throughput than a regular volume.
+For example, in benchmark tests using Flexible I/O Tester (FIO), a large volume achieved higher IOPS and throughput than a regular volume.
+
+:::image type="content" source="./media/large-volumes/large-regular-volume-comparison.png" alt-text="Diagram comparing large and regular volumes with random I/O." lightbox="./media/large-volumes/large-regular-volume-comparison.png":::
+
+:::image type="content" source="./media/large-volumes/large-volume-throughput.png" alt-text="Diagram comparing large and regular volumes with sequential I/O." lightbox="./media/large-volumes/large-volume-throughput.png":::
+
+## Work load types and use cases
+
+Regular volumes can handle most workloads. Once capacity, file count, performance, or scale limits are reached, new volumes must be created. This condition adds unnecessary complexity to a solution.
+
+Large volumes allow workloads to extend beyond the current limitations of regular volumes. The following table shows some examples of use cases for each volume type.
+
+| Volume type | Primary use cases | 
+| - | -- |
+| Regular volumes | <ul><li>General file shares</li><li>SAP HANA and databases (Oracle, SQL Server, Db2, and others)</li><li>VDI/Azure VMware Service</li><li>Capacities less than 50 TiB</li></ul> |
+| Large volumes | <ul><li>General file shares</li><li>High file count or high metadata workloads (such as electronic design automation, software development, FSI)</li><li>High capacity workloads (such as AI/ML/LLP, oil & gas, media, healthcare images, backup and archives)</li><li>Large-scale workloads (many client connections such as FSLogix profiles)</li><li>High performance workloads</li><li>Capacity quotas between 50 TiB and 1 PiB</li></ul> |
+
+## More information
+
+* [Requirements and considerations for large volumes](large-volumes-requirements-considerations.md)
+* [Storage hierarchy of Azure NetApp Files](azure-netapp-files-understand-storage-hierarchy.md)
+* [Resource limits for Azure NetApp Files](azure-netapp-files-resource-limits.md)