Azure Premium Storage
I was talking to a friend and we were discussing on the right capacity sizing on Microsoft Azure Cloud. Picking right size of VM that has enough CPU, Memory and Network capability to support the workload. In this article, we will consolidate the Azure Premium Storage options available on Microsoft official sites that will help all of us to size the Infrastructure carefully.
For example – If we need to size Oracle database on Azure, we need to know size of data that will be on Azure and also the IO per second (IOPS) required by the database so that its current sizing and future limitations are known before hand.
Some key points to remember on Azure Premium Storage –
- Premium Storage is available only for Azure DS and GS series Virtual Machines
- Azure DS and GS series Virtual Machines support Standard and Performance disks
- They provide up to 80,000 IOPS and 2000 MBps bandwidth per VM for GS Series VMs
- They provide up to 50,000 IOPS and 512 MBps bandwidth per VM for DS Series VMs
- Premium Storage is available only for Page Blobs
- The Input/Output (I/O) size is 256KB
- Supports up to 64 TB Storage, less than 1 milisecond latency for read operations.
- Supports up to 35 TB of Storage per Storage account
- Premium Storage supports LRS replication (Locally Redundant), giving 3 copies of your data. For Geo-replication, you could use snapshots that are taken on Standard storage.
- Up to 10 TB of Snapshots can be taken per Storage account
- Total number of Snapshots can be up to 100 per Premium Storage account
Premium Storage Disk Type
It is important to know the various disk size options, IOPS and network throughput options available within Azure Premium Storage and accordingly choose the right size Virtual Machine [VM].
|Storage Disk Type||P10||P20||P30|
|Disk Size||128 GiB||512 GiB||1024 Gib (1TB)|
|IOPS per Disk||500||2300||5000|
|Throughput per Disk||100 MBPS||150 MBPS||200 MBPS|
Azure DS and GS Series Virtual Machines
Standard Tier VMs : DS Series
|Size||CPU (Cores)||Memory (GB)||Data Disks (1023 GB)||IOPS / Bandwidth (MBPS|
|Standard_DS1||1||3.5||2||3,200 / 32 MB|
|Standard_DS2||2||7||4||6,400 / 64 MB|
|Standard_DS3||4||14||8||12,800 / 128 MB|
|Standard_DS4||8||28||16||25,600 / 256 MB|
|Standard_DS11||2||14||4||6,400 / 64 MB|
|Standard_DS12||4||28||8||12,800 / 128MB|
|Standard_DS13||8||56||16||25,600 / 256 MB|
|Standard_DS14||16||112||32||50,000 / 512 MB|
Standard Tier VMs : GS Series
|Size||CPU (Cores)||Memory (GB)||Data Disks (1023 GB)||IOPS / Bandwidth (MBPS)|
|Standard_GS1||2||28||4||5,000 / 125 MB|
|Standard_GS2||4||56||8||10,000 / 250 MB|
|Standard_GS3||8||112||16||20,000 / 500 MB|
|Standard_GS4||16||224||32||40,000 / 1,000 MB|
|Standard_GS5||32||448||64||80,000 / 2,000 MB|
Looking at the table above, you need to pick the VMs size and Storage type accordingly. For example, a Standard_DS1 VM with P10 Performance Storage will only give you 32 MB/s throughput even though P10 supports 100 MB/s network bandwidth. This is because Standard_DS1 VM only provides up to 32 MB/s network throughput.
How to attach Premium Storage to Azure Virtual Machine
You first need to create Azure Premium Storage account and then use Azure PowerShell to create and add Virtual hard disk to Azure Virtual Machine.
New-AzureStorageAccount -StorageAccountName "yourpremiumaccount" -Location "West US" -Type "Premium_LRS"
Type – “Premium_LRS” is the key here to create Premium Storage account
$storageAccount = "yourpremiumaccount" $vmName ="yourVM" $vm = Get-AzureVM -ServiceName $vmName -Name $vmName $LunNo = 1 $path = "http://" + $storageAccount + ".blob.core.windows.net/vhds/" + "myDataDisk_" + $LunNo + "_P1O.vhd" $label = "Disk " + $LunNo Add-AzureDataDisk -CreateNew -MediaLocation $path -DiskSizeInGB 128 -DiskLabel $label -LUN $LunNo -HostCaching ReadOnly -VM $vm | Update-AzureVm
The above command will add additional disk to an existing Virtual Machine created on Azure Premium Storage.
I hope you would have liked this article. I will add more content on Azure Capacity Planning, Storages shortly. In the meanwhile, please drop comments if you have any question.