Recover Azure VM by attaching OS disk to another Azure VM

[Update:1/28/2015] These steps apply only to classic VMs. If you need assistance with Resource Manager VMs, please contact Microsoft Support. If you are unable to connect to an Azure VM with RDP or SSH even after restarting and resizing the VM, you can use the following steps to make it accessible again. Manual Recovery Steps Be…

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Configuring Azure Virtual Machines for Optimal Storage Performance

In support, one of the most common questions we get is: How do I achieve the best disk performance for Azure virtual machines? Platform Planning: In the standard tier of virtual machine in Azure, the maximum IOPS is 500 per disk. When planning for a high I/O virtual machine, you also need to take into…


How to Monitor for Storage Account Throttling

For Azure Virtual Machines, we document storage limits of 500 IOPS per disk, and the guidance to not place more than 40 highly used VHDs in any single storage account since there is a 20,000 IOPS limit per storage account. By default, each subscription can have up to 20 storage accounts containing up to 500…

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Learning Azure Service Management REST API through Powershell, and Azure CLI tools

Azure Service Management REST API is used by all the public tools provided by Microsoft to manage your Azure Subscription – Portal, New Portal, Powershell, X-Plat CLI. You can use the same APIs to build your own tools that would manage your Azure Subscription. Sometimes, it is little difficult to bring up all the necessary…


Unable to setup AutoScale for Virtual Machines from the Azure Management Portal

You can set up AutoScale for your Cloud Services, Virtual Machines, Web Sites from the Azure Management Portal. For Virtual Machines, autoscale can be configured for each availability set. You can setup AutoScale for your availability set only if: You have only ‘Standard’ VMs in your Availability Set. Basic VMs cannot participate in AutoScaling. Your…


Azure Import/Export Service Error: The provided file doesn’t contain valid drive information

The Windows Azure Import/Export Service enables you to move large amount of data in or out of your Microsoft Azure storage accounts. It does this by enabling you to securely ship hard disk drives directly to our Microsoft Azure datacenters. Once we receive the drives we’ll transfer the data to or from your Microsoft Azure…


Event ID 2: Session "WindowsAzure-GuestAgent-Metrics" failed to start with the following error: 0xC0000035

You may notice the following error on an Azure VM in the event log under Applications and Services Logs, Microsoft, Windows, Kernel-EventTracing, Admin: Log Name: Microsoft-Windows-Kernel-EventTracing/AdminSource: Microsoft-Windows-Kernel-EventTracingEvent ID: 2Task Category: SessionLevel: ErrorKeywords: SessionUser: SYSTEMComputer: CLJul8WS08R2ADescription:Session “WindowsAzure-GuestAgent-Metrics” failed to start with the following error: 0xC0000035 This error can be safely ignored. In scenarios where you are…

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Unable to add VM agent extension to Azure VM

[Update 7/17/2014] Azure PowerShell 0.8.5 has released which resolves the inability to use VM agent extensions if the VM is in an availability set. Links to install it via Web Platform Installer or Windows Standalone (MSI) are available on GitHub: https://github.com/Azure/azure-sdk-tools/releases When you try to add a VM agent extension such as BGInfo or VM…

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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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Use port pings instead of ICMP to test Azure VM connectivity

Because the ICMP protocol is not permitted through the Azure load balancer, you will notice that you are unable to ping an Azure VM from the internet, and from within the Azure VM, you are unable to ping internet locations. Note that while this applies to network traffic going through the external IP (VIP) through…

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