Article number
000003720
Affected Versions
All
Source Hypervisor
All
Target Hypervisor
Azure

How to Increase an Azure ZCA Resources Properly

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Summary

An administrator may need to increase their Azure ZCA's resources.

Steps

Make sure the proper instance type and size (in the relevant series) is being selected. Some do have more compute resources, but their storage related resources are more limited.

For instance, when upgrading from 'Standard_D4s_v3' (16GB of RAM / 4 vCPUs), it is recommended to upgrade in the same criteria of the instance's series, or better. For instance, upgrade to: 'Standard_D8s_v3' (32GB of RAM / 8 vCPUs), in the same series, rather than the same compute resource in-terms of capacity, but from a different instance series, for instance: 'Standard_B8ms' (Also 32GB of RAM / 8 vCPUs).

But when looking deeper into the specifics, namely the storage throughput and the IOPS, there is a big difference in numbers:

 

Size

vCPU

Memory: GiB

Temp storage (SSD) GiB

Max data disks

Max cached and temp storage throughput: IOPS / MBps (cache size in GiB)

Max uncached disk throughput: IOPS / MBps

Standard_D8s_v3

 

8

 

32

 

64

 

16

 

16000 / 128 (200)

 

12800 / 192

 

 

 

Size

vCPU

Memory: GiB

Temp storage (SSD) GiB

Base CPU Perf of VM

Max CPU Perf of VM

Initial Credits

Credits banked / hour

Max Banked Credits

Max data disks

Max cached and temp storage throughput: IOPS / MBps

Max uncached disk throughput: IOPS / MBps

Max NICs

 

Standard_B8ms

 

8

 

32

 

64

 

135%

 

800%

 

240

 

81

 

1944

 

16

 

4320 / 50

 

4320 / 50

 

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