Azure DNS Server Redundancy

Customers may observe that their PaaS role instances and IaaS virtual machines are only issued one DNS server IP address by DHCP.  This does not mean that name resolution in Azure has a single point of failure however. The Azure DNS infrastructure is highly redundant.  The IP address that is exposed to the customer virtual…

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What is the IP address 168.63.129.16?

The IP address 168.63.129.16 is a virtual public IP address that is used to facilitate a communication channel to internal platform resources for the bring-your-own IP Virtual Network scenario.  Because the Azure platform allow customers to define any private or customer address space, this resource must be a unique public IP address.  It cannot be…

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Unable to delete VHD, “There is currently a lease on the blob…”

For classic VMs, there are artifacts (metadata about the VHDs) that keep a lease on the VHD even when no VM is using it. To delete a disk or image for classic VMs, in the classic portal (https://manage.windowsazure.com/) select Virtual Machines on the left navigation pane, then select the Disks or Images tab on the right…


Windows Azure Pack: Infrastructure as a Service Jump Start

Free online event with live Q&A with the WAP team: https://aka.ms/WAPIaaS Two half-days – Wednesday July 16th & Thursday July 17th– 9am-1pm PST IT Pros, you know that enterprises desire the flexibility and affordability of the cloud, and service providers want the ability to support more enterprise customers. Join us for an exploration of Windows…

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Software-Defined Networking with Windows Server and System Center Jump Start

Free online event with live Q&A with the WAP team: https://aka.ms/WAPIaaS Two half-days – Wednesday July 16th & Thursday July 17th– 9am-1pm PST IT Pros, you know that enterprises desire the flexibility and affordability of the cloud, and service providers want the ability to support more enterprise customers. Join us for an exploration of Windows…

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How to Copy files to/from Azure Storage

If you are looking for a reliable way to copy files to or from Azure storage then this blog post might just have the right answer. Note: In this post I am not writing anything new but merely pointing to posts or tools that already exists.   Copying VHDs (Blobs) between Storage Accounts using Azure…

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Avoiding allocation failure error in Microsoft Azure

In some cases you may encounter an allocation failure error when you are trying to perform an action which includes: Deleting and recreating a VM Creating a new VM Deploying new packages Deploying updates to existing deployments Starting a VM from stopped de-allocated state Below let’s take a look at the different versions of this…

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Taking a closer look at Microsoft Azure Maintenance to avoid downtime

  We receive a lot of cases where the customer wants to know why their VM running in Azure was restarted and why they were not pre-notified about the same and in the future can we pre-notify them when there is any maintenance performed.   This blog post is an attempt to answer these questions…

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How to move your Windows server VM running on Hyper-V to Microsoft Azure

  Note: This blog post comes from Manoj Sehgal, Sr. Support Escalation Engineer from Microsoft Azure team.   The following blog post will guide you through the procedure to move your on premises Windows server VM which is running in Hyper-V or VMWare environment to Microsoft Azure, by uploading its VHD.   Steps: 1.      1….

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