Azure provides several types of disk storage with different performance characteristics such as IOPS, throughput, latency, and so on.
Standard HDD is recommended as a cost-effective solution.
Premium SSD is recommended as a performance-optimized solution.
Select the appropriate DDVE virtual machine instance type according to capacity and workload.
The metadata requirements that are listed here are based on 10X deduplication ratio and 2X compression. If your workload has a higher deduplication ratio, add more metadata disks as required.
Table 1. DDVE on Azure: Performance-optimized solution with Premium SSD
Instance type
Standard_D4ds_v5
Standard_D8ds_v5
Standard_D16ds_v5
Standard_D32ds_v5
CPU
4
8
16
32
Memory (GiB)
16
32
64
128
System Disk
250 GiB Premium SSD Root disk
250 GiB Premium SSD Root disk
250 GiB Premium SSD Root disk
250 GiB Premium SSD Root disk
10 GiB Premium SSD NVRAM disk
10 GiB Premium SSD NVRAM disk
10 GiB Premium SSD NVRAM disk
10 GiB Premium SSD NVRAM disk
Storage capacity
16 TB
32 TB
96 TB
256 TB
Metadata disks
Premium SSD
Up to 2 X 1 TiB
Premium SSD
Up to 4 X 1 TiB
Premium SSD
Up to 10 X 1 TiB
Premium SSD
Up to 13 X 2 TiB
Table 2. DDDVE on Azure: Cost-effective solution with Standard HDD
Instance type
Standard_D4ds_v5
Standard_D8ds_v5
Standard_D16ds_v5
CPU
4
8
16
Memory (GiB)
16
32
64
System Disk
250 GiB Standard HDD Root disk
250 GiB Standard HDD Root disk
250 GiB Standard HDD Root disk
10 GiB Standard HDD NVRAM disk
10 GiB Standard HDD NVRAM disk
10 GiB Standard HDD NVRAM disk
Storage capacity
16 TB
32 TB
96 TB
Metadata disks
Standard HDD
Up to 2 X 1 TiB
Standard HDD
Up to 4 X 1 TiB
Standard HDD
Up to 10 X 1 TiB
NOTE
Standard SSD is also supported, but it is not the recommended configuration.
Use the same disk type within a DDVE.
Other instance types (Standard_F8, Standard_F8s, Standard_D4ds_v4, Standard_D4_V2, Standard_DS4_V2, Standard_D8ds_v4, Standard_D16_V3, Standard_D16s_v3, Standard_D16ds_v4, Standard_D32s_v3 and Standard_D32ds_v4) are still supported, but the new v5 instance types are recommended. For more information about the Azure Ddsv5 series instance, see
https://docs.microsoft.com/en-us/azure/virtual-machines/ddv5-ddsv5-series#ddsv5-series.
Table 3. Azure Hot Blob Storage Stream and MTree Counts
System capacity
Instance type
Max Mtree
Stream Counts
Read
Write
Replication In
Replication Out
Combined
16 TB
Standard_F8s
Standard_F8
Standard_D4ds_v4
Standard_D4ds_v5
6
30
45
45
42
60
32 TB
Standard_DS4_v2
Standard_D4_v2
Standard_D8ds_v4
Standard_D4ds_v5
14
50
90
90
82
90
96 TB
Standard_D16s_v3
Standard_D16_v3
Standard_D16ds_v4
Standard_D4ds_v5
32
50
180
180
100
180
256 TB
Standard_D32s_v3
Standard_D32ds_v4
Standard_D4ds_v5
128
110
540
540
220
540
Data is not available for the Topic
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