CombinedTempDiskAndCachedIOPS value for FX-series VMs mismatches the Azure documentation #28402
Description
Describe the bug
Fx-series VMs Azure CLI values mismatch the documentation. For example:
Standard_FX24mds in the documentation has "Max cached and temp storage throughput: 200000 IOPS.
However, in the Azure CLI the values are:
{
"name": "CombinedTempDiskAndCachedIOPS",
"value": "327000"
},
Related command
az vm list-skus --location eastus --size Standard_FX24mds --output json
Errors
Max cached and temp storage throughput documentation value is 200000, but the CombinedTempDiskAndCachedIOPS is 327000 from Azure CLI.
Issue script & Debug output
$ az vm list-skus --location eastus --size Standard_FX24mds --output json
[
{
"apiVersions": null,
"capabilities": [
{
"name": "MaxResourceVolumeMB",
"value": "1032192"
},
{
"name": "OSVhdSizeMB",
"value": "1047552"
},
{
"name": "vCPUs",
"value": "24"
},
{
"name": "MemoryPreservingMaintenanceSupported",
"value": "True"
},
{
"name": "HyperVGenerations",
"value": "V2"
},
{
"name": "MemoryGB",
"value": "504"
},
{
"name": "MaxDataDiskCount",
"value": "32"
},
{
"name": "CpuArchitectureType",
"value": "x64"
},
{
"name": "LowPriorityCapable",
"value": "True"
},
{
"name": "PremiumIO",
"value": "True"
},
{
"name": "VMDeploymentTypes",
"value": "IaaS"
},
{
"name": "vCPUsAvailable",
"value": "24"
},
{
"name": "ACUs",
"value": "310"
},
{
"name": "vCPUsPerCore",
"value": "2"
},
{
"name": "CombinedTempDiskAndCachedIOPS",
"value": "327000"
},
{
"name": "CombinedTempDiskAndCachedReadBytesPerSecond",
"value": "2057306112"
},
{
"name": "CombinedTempDiskAndCachedWriteBytesPerSecond",
"value": "2057306112"
},
{
"name": "CachedDiskBytes",
"value": "1159640000000"
},
{
"name": "UncachedDiskIOPS",
"value": "40000"
},
{
"name": "UncachedDiskBytesPerSecond",
"value": "629145600"
},
{
"name": "EphemeralOSDiskSupported",
"value": "True"
},
{
"name": "EncryptionAtHostSupported",
"value": "True"
},
{
"name": "CapacityReservationSupported",
"value": "True"
},
{
"name": "AcceleratedNetworkingEnabled",
"value": "True"
},
{
"name": "RdmaEnabled",
"value": "False"
},
{
"name": "MaxNetworkInterfaces",
"value": "4"
}
],
"capacity": null,
"costs": null,
"family": "standardFXMDVSFamily",
"kind": null,
"locationInfo": [
{
"location": "eastus",
"zoneDetails": [
{
"Name": [
"3"
],
"capabilities": [
{
"name": "UltraSSDAvailable",
"value": "True"
}
],
"name": null
}
],
"zones": [
"3"
]
}
],
"locations": [
"eastus"
],
"name": "Standard_FX24mds",
"resourceType": "virtualMachines",
"restrictions": [],
"size": "FX24mds",
"tier": "Standard"
}
]
Expected behavior
{
"name": "CombinedTempDiskAndCachedIOPS",
"value": "200000"
},
Environment Summary
$ az --version
azure-cli 2.57.0
core 2.57.0
telemetry 1.1.0
Extensions:
image-copy-extension 0.2.9
Dependencies:
msal 1.26.0
azure-mgmt-resource 23.1.0b2
Python location '/usr/local/Cellar/azure-cli/2.57.0/libexec/bin/python'
Extensions directory '~/.azure/cliextensions'
Python (Darwin) 3.11.7 (main, Dec 4 2023, 18:10:11) [Clang 15.0.0 (clang-1500.1.0.2.5)]
Legal docs and information: aka.ms/AzureCliLegal
Additional context
It looks like this is related to all the FX-series VMs, and not just Standard_FX24mds.