New AMD EPYC virtual machine series in Azure!

Today I was browsing the Azure Management portal and discovered that Microsoft Azure released a new virtual machine series based on the AMD EPYC 7452V processors that can achieve a boosted 3.35Ghz. With these new AMD processers there are 4 new series available in Azure: Dasv3-series, Dav3-series, Easv3 and the Eav3-series

Same performance, lower price!

With almost the same performance as the DSv3 and Dv3 series Intel virtual machines, these machines might be an interesting choice, especially if we do a price comparison, just 2 examples:

CPU BrandMachineCPUMemoryPrice per month
IntelD2 v328€ 128
AMDD2a v328 54
IntelD4s v3416€ 257
AMDD4as v3416€ 109

If we look at the above pricing, there is a 234% price difference between AMD and Intel. I know, its not a perfect 1 on 1 comparison, but for the same price, you get the double amount of cores, and memory…

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Azure Private Link now available in Preview!

With an increased security and privacy in mind Microsoft has been working on private links to Azure resources. Azure Private Link is a secure way to consume Azure Services like Azure SQL and Azure Storage using a private connection in your own VNet. This will replace the need for IaaS hosted virtual machines with SQL Server or the file server role installed.

Afbeeldingsresultaat voor azure private link

Azure Private Link brings Azure services inside the customer’s private VNet. The service resources can be accessed using the private IP address just like any other resource in the VNet. It is basically an NIC inside one of your VNET’s. This will allow all traffic to flow over the internal network, and will not go over the internet. There is no need to put gateways or any other network devices in place to make this happen.

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Azure Ultra Disk performance storage now available!

For very high demanding workloads, storage wise, Azure has released Ultra Disk performance tier for production use. I’ve already written about it in a previous post ( Slow IOPS in Azure VM’s? not anymore!) But now is the time to take a deeper look.

Which disk types do we have in Azure?

In the following table you can see what the difference is between all disk types in Azure. This table should help you to decide which disk to use for specific workloads.

Standard HDDStandard SSDPremium SSDUltra SSD
ScenarioBackup, Fileserver,
non-critical,
infrequent access
Webservers,
lightly used
applications and
dev/test systems
Production and
performance
workloads
IO intensive
workloads.
(SQL/Oracle/
SAP HANA)
Max disk
size
32TB32TB32TB64TB
Max
Throughput
500MiB/s750MiB/s900MiB/s2.000MiB/s
Latency8 > ms< 9 ms1 – 4 ms<1 ms
Max
IOPS
2.0006.00020.000160.000
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How to get the license key for SQL Server Reporting Services in Azure

Last week I received the question from a customer where to get the SQL license key… By default you will see the key during SQL installation, but with an Azure deployed SQL virtual machine you will never get to see the key, as its deployed from the Azure Portal.

Afbeeldingsresultaat voor sql installation wizard license key

Retreive the key from DefaultSetup.ini

So within a few clicks you will be able to retreive the key.

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Azure Bastion in Public Preview!

Today Microsoft has announced Azure Bastion. With this new service you will get improved security features and simplified IT managemend with a single click from your webbrowser using the HTML5 web client. This will eliminate the need for a jump server. I am looking forward in using this service in preview and GA.

More information can be found on the Microsoft Azure blog: https://azure.microsoft.com/nl-nl/blog/announcing-the-preview-of-microsoft-azure-bastion/

Top-level Azure Bastion architecture

Slow IOPS in Azure VM’s? not anymore!

In Azure there are several ways to implement your VM storage. I get a lot of complaints about slow storage in Azure. In this article I will try to explain why this might be slow, and what you can do about it. There are multiple locations where the limit might be hit. So I will address all in the following topics.

Virtual machine type

The first limitation might be coming from your virtual machine. Each type has its own total IOPS limit. Thus by adding more disk or faster disk than the type and size allows will not make any speed difference in the end. One of the obvious reasons for faster disk performance is to use SSD disks instead of HDD.

Example of an IOPS limit on VM type

But keep in mind, not all virtual machines do support Premium SSD Storage, with an effective limit of 500 IOPS per disk, like in the Av2 series. And then there is host caching, that effects performance as well. A few examples:

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How to deploy Azure Active Directory Domain Services (AD DS)

Today we will learn how to deploy Azure AD Domain services. So let’s go to the Azure portal and let’s get you started!

Step 1: Go to Azure AD Domain Services and create a new Azure AD Domain services!

Step 2: Now we can start te setup of ADDS, fill in your preferred domain name. You can leave the default which is the same as your Azure Active Directory name ending with .onmicrosoft.com, but I would recommend a public URL like in my case adds.2azure.nl.

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Azure virtual machines SLA explained

Recently I received an comparison from Azure with competitors. In the comparison there was stated that by default Azure provides an SLA of 99.95%. However, this is not entirely correct. By default a single basic virtual machine has no SLA at all!

I hear you thinking, what??? let me explain what the options are. First we need to know a bit more of the setup in Azure. For this explanation I will use West & North Europe. These regions do have Availability zones, but this might not always be the case. In the picture below you can review the Azure regions with their options.

Click on the picture to enlarge

So lets zoom in a bit further. In the picture below we have our 2 regions (West & North Europe). Within Region 1 we have 3 separated buildings, creating 3 availability zones.

So lets move on the SLA rules.

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