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Dell EMC PowerProtect DDVE in the Azure Cloud 7.8 Installation and Administration Guide

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Understanding compute and storage requirements

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_v4 Standard_D8ds_v4 Standard_D16ds_v4 Standard_D32ds_v4
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_v4 Standard_D8ds_v4 Standard_D16ds_v4
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_D4_V2, Standard_DS4_V2, Standard_D16_V3, Standard_D16s_v3 and Standard_D32s_v3) are still supported, but the new v4 instance types are recommended. For more information about the Azure Ddsv4-series instance, see https://docs.microsoft.com/en-us/azure/virtual-machines/ddv4-ddsv4-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

6 30 45 45 42 60
32 TB Standard_DS4_v2

Standard_D4_v2

Standard_D8ds_v4

14 50 90 90 82 90
96 TB Standard_D16s_v3

Standard_D16_v3

Standard_D16ds_v4

32 50 180 180 100 180
256 TB Standard_D32s_v3

Standard_D32ds_v4

128 110 540 540 220 540

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