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Tips & Tricks : Windows 10 & Windows Server 2016 reset on VMware ESX 6

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Here is one from friend of mine, very skilled Senior IT Engineer, Tomasz Jagiello. Some bugs he identified while working with VMware ESX 6.

Symptoms

VM running Windows 10 (x64) as the Guest OS is automatically reset after some hours (roughly a day). Reoccurs daily.

The thread said it also applied to Windows Server 2016 VMs.

There is an unrecoverable error that cause the VMkernel to shut down / restart / crash the virtual machine.

VMware ESX unrecoverable error: (vcpu-0) NOT_REACHED bora/devices/ahci/ahci_user.c:1530

Check if you’re using a para-virtual SATA adapter in the settings of the VM.

 

Cause

There is a VMware bug where if the SATA adapter receives SMART communications on a non-SMART device the CPU bus locks up and ESX reboots the VM.

I was using SCSI for the VM disks and SATA for the VM CD-ROM.

 

Workaround

  1. Edit VM Hardware settings
    • Remove CD/ROM
    • OK
  2. Edit VM Hardware settings
    • Remove SATA Controller
    • OK
  3. Edit VM Hardware settings
    • Add CD/ROM
    • Change to IDE
    • Remove SATA Controller
    • OK
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Tips & Tricks : Enabling Windows Hyper-V 2012 Remote Management

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After installing Windows Hyper-V 2012 sometimes there might be some issues with remote management (even if enabled via sconfig).

In that case few firewall rules might have to be enabled on Hyper-V machine using PowerShell:

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First look : System Center Virtual Machine Manager 2012 installation screenshots

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Installation screenshots from System Center Virtual Machine manager 2012 installation. I did installation in my virtual LAB environment as part of excercise with System Center 2012.

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How-to : Package virtual machine for Riverbed Steelhead with RSP

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RSP platform installed on Riverbed allows to run VMware virtual machines on it. THat gives very powerful environment as Riverbed might become the only appliance deployed for branch office and with WAN optimization we can also provide basic services/systems to site. That gives us huge flexibility and same time no need to deploy additional systems for site can be placed on Riverbed as virtual machines. Of course that reuires special license and also additional RAM would be recommended, so we won’t suffer performance issues (additional memory can be purchased with Riverbed appliance and RSP license, so we get ready to go environment).

But it is not enough to create VMware cityual machine on PC and upload it to Riverbed. Few more steps is involved in the process and here we will go through all steps to see how to prepare virtual machine for Riverbed on Windows 7 PC with VMware Workstation 9 installed.

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How-to : Connect to Amazon EC2 Linux AMI using SecureCRT

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Recently I decided to use Amazon AWS EC2 platform to host systems in the Cloud. As operating system I needed is Linux I quickly deployed Amazon Linux AMI, which is quick and simple to do.

Once instance was created I downloaded key pair. Now it came down to connecting to my virtual machine in the cloud.My SSH client of choice is SecureCRT. Let’s see how to configure session parameters in SecureCRT in order to connect to Amazon Linux AMI instance hosted on EC2 platform.

I’m using SecureCRT 7.0.1 to connect to server hosted on Amazon EC2 platform.

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How-to : Riverbed Service Platform (RSP) installation on Riverbed Steelhead 250H

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Previous article about Riverbed covered RiOS upgrade process. In this post I will show how to install Riverbed Service Platform (RSP).

First let’s see how to get RSP image and what is RSP and how this can be used.

RSP can be downloaded from Riverbed Support page (https://support.riverbed.com/software/rsp.htm), where appropriate version for particular RiOS and Steelhead model can be downloaded.

Best source of detailed description will be RSP User’s Guide, so I did use it as source of information.

RSP offers branch-office-in-a-box services with the following benefits:

  • A VMware-based virtualization platform that provides the benefits of the most commonly deployed and advanced virtualization tool set
  • Support for running up to five different additional services simultaneously on a single Steelhead appliance, depending on the service and Steelhead appliance model
  • Support for more services and types of services, including in-band packages located in-line with optimization such as the Universal Threat Management (UTM) security services, proxy solutions such as video or network monitoring services, and improved support for out-of-band packages  such as Windows Active Directory, DNS and DHCP management software, and print services.
  • A comprehensive, integrated user interface that provides granular control of RSP, including setup, reporting, and the definition of the data flow between services

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