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Look at Hyper-V 2012 gracefully shutdown when UPS battery running out. This may have a workable solution. The hypervisor should be able to notify the clients to shutdown gracefully. It appears that Windows can detect some UPS models. They show up in the same manner as a battery in a laptop and are managed in the same way. If all else fails look at the ...


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Best way: Get a UPS with a network management card. After you install the agent service in each vm and the host, and you setup them to shutdown when a ups event happen. (like for apc, the agent is called 'apc powerchute network shutdown')


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Michael Brown already answered it, just wanted to add: CSV is currently the best practice storage configuration for both Hyper-V, SQL FCI, and SoFS. 99% of the clustered systems I configure for the customers are built on CSV and remaining 1% uses DAG and AlwaysOn AG like BaronSamedi1958 mentioned above. Also,CSV now has a benefit of ODX (Offloaded Data ...


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This link lists the benefits of CSVs https://technet.microsoft.com/en-us/library/dd759255(v=ws.11).aspx q1) can multiple VMs on Node1 run in the same clusterdisk? I don't think that is possible (the article says no). Even if you could add multiple VMs to the same Clusterdisk it would mean if a single VM failed or needed to be moved it couldn't be moved ...


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CSV is layered on top of some physical shared storage so you can have CSV without shared storage. https://en.wikipedia.org/wiki/Cluster_Shared_Volumes You can still have a cluster without shared storage / CSV say Exchange DAG and SQL Server AAG. https://technet.microsoft.com/en-us/library/dd979799(v=exchg.150).aspx ...


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I needed a solution for monitoring the heartbeat of all Hyper-V virtual machines and automatically preforming a hard reset when the VM locked up. As you may already know. it seems as though you can do this using Hyper-V when you have a cluster setup, but with only a single Hyper-V host, that is not possible without some custom scripting. I found a nice VBS ...


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I cannot believe this, but apparently right before I copied this virtual machine, someone committed code with the wrong SQL Server address. I didn't realize that commit had made it onto that machine. So it's my own dumb fault for not paying enough attention.


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In order to create a true “shared-nothing” failover file server you can use a free Starwind solution https://www.starwindsoftware.com/starwind-virtual-san-free. Basically it can do the same that Windows Server 2016 will do later but unfortunately only in the Datacenter edition. Starwind can do it already even with a free Hyper-V 2012 server ...


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Because this is only a testing environment have you considered creating several shared VHDX disks and using them to create a Clustered Storage Space? that way you can add more disks to the storage space to increase capacity as needed.


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I have never been in a situation where I've had too many backups. You should have both hyper-v vhd backups and application/data backups. This will allow you to do the least disruptive restore possible, and recover from data issues without having to recover the whole VM. If yo have the case where the host fails you are covered there too.


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The volumes hosting the VMs contain a lot of things. The VHDs will be the bulk of that, but there will also be things which you don't need to back up, like the file reserved for paging the guest VM (if you have Dynamic Memory enabled.) Furthermore, if you just back up the volumes (and I doubt that's what Veeam is doing) then you get an image of the VHDs ...


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Apparently you can take the shared VHDX offline (the shares will be unavailable), either by shutting down the clustered guests or by unmounting it, and then change the size of the VHDX and then bring it back online (or boot the guests). A few web searches have turned up people writing and agreeing that that's the only way to do it. There's one such ...


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If you are a 501(c)3 there is no reason to buy VMware. In fact, you should use TechSoup.org to get all the Microsoft and Cisco you can. Ideally you would be keeping track of donation cycles and timelines and planning at least a year ahead on what donation requests you are going to make from Tech Soup next time the cycle comes around. This is especially true ...


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What kind of storage do you use as shared storage where your CSV’s are hosted? If it’s a software solution (software-defined storage), I would recommend turning native CSV caching off and use solution’s cache instead. Software-defined storage like Starwind for example has it’s own DRAM caching which can work in write-back mode (CSV has read-only cache) and ...


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I have had success using XenServer's free Xen Convert tool when porting a physical windows server to HyperV. Xen Convert : https://www.citrix.com/go/products/xenserver/xenserver-xenconvert-free.html Xen Convert Documentation : http://support.citrix.com/servlet/KbServlet/download/28774-102-661315/XenConvertGuide.pdf Note: I do not yet have a enough ...


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You asked a very specific question -- what does the CSV cache do under memory load? The answer is that memory is allocated to the CSV cache statically, and never released. So if you experience a failover, that memory is not available for anything else, like picking up VMs that might need to run. I suspect that, after a relatively small allocation (the ...


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Storage Spaces is only supported on physical hardware. If you're trying to pass the disks through to a VM, you're going to see the host recognize a foreign storage pool on every reboot, as you described. You should run the storage pool on the host, not the guest. Then put a fixed-size VHDX on the virtual disk from the storage pool. Then attach that VHDX ...


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have you checked the host based Firewall on the VM? is it allowing ICMP traffic? this would explain why the VM can ping the host but not the other way round


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The changes you have highlighted were introduced in Windows 2012-R2, specifically for SoFS. SoFS is very read-intesive and would greatly benifit from higher cache settings (max-80% / recommended-max-64GB) For Hyper-V the recommendation is to be more conservative, in regards to memory allocation, for exactly the reason you highlight. the CSV cache will be ...


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Team & trunk! I always start with what I find is the best and most flexible arrangement. Team those NICs up. Then configure the team as a trunk. This covers all my possible needs. Load balancing, & VLANs. I agree, do it because you want to learn, good for you. Only time I wouldn't necessarily team is if I want switch redundancy and couldn't ...


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I can confirm: zerofree is working to compact virtual disk files BUT: you don't need to use any rescue CDs or to mount the VHDX in another virtual machine: sudo apt-get install zerofree Boot in safe mode, then run: zerofree /dev/sda1 After that, we have to start the optimization for the virtual disk file. On the server hosting the VHDX file, create ...


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An additional method is the standalone Network Emulator Toolkit (NEWT), which despite it's age is quite capable and works for x86 and x64 Windows operating systems. https://blog.mrpol.nl/2010/01/14/network-emulator-toolkit/ Using the included XML templates with the installer, you can quickly get up and running on simulating latency, bandwidth, jitter, and ...


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It is unable to create the differencing disk from Hyper-V checkpoint as it is volatile and being accessed by VM. You can create the multi level diffenencing disk by using vhd/vhdx format only thorough Hyper-V manager. If you don't want to affect the parent vhd, you can use the revert option.


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In your case, i would use Migration tools that are included in Windows Server 2012 R2. It will migrate everything (shares, permissions, data...) and it's a full supported way to migrate from Windows Server 2003 to a newest operating system. Last but not least, it's very simple to use it. Basically the process will be the following : - Install a new Windows ...


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This can be easily achieved by: Removing the IP:107 from the physical network card on the host Configuring the an External Hyper-V Switch and remove the check box from "Allow management operating system to share this network adapter" Add the IP:107 directly to the VM network card. I'd advice that you add a firewall if this is a real IP to protect your ...


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Having problems with the VirtualBox built-in converter (Hyper-V would not open the disks), I had better success with Disk2vhd from Microsoft SysInternals - just run the EXE inside the VM you want to migrate. Detailed instructions at https://hyperv.veeam.com/blog/how-to-convert-physical-machine-hyper-v-virtual-machine-disk2vhd/ Cons You do need to run ...


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I think you probably have a misconfiguration on your Hyper-V Virtual switch. Did you create an external network virtual switch connected to your Hyper-V server NIC ? You can also check "Allow Management Operating System to share this network controller" Walk through ...


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I just re-read the "tips on writing great answers" so I will try to add some information here. I know this is a really old thread, but many of us many of us have old systems we are required to support. To answer the very specific question; YES, you can run Hyper-V with Server 2003 as the HOST. I know it's not a Role or a Feature, but here's how you can do ...


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You have two options in order to create a Hyper-V Failover Cluster using your current hardware: 1) Windows Server 2016 with Storage Replica http://www.tech-coffee.net/storage-replica/ that assumes a manual failover in case one of the servers fails or Storage Spaces Direct http://windowsitpro.com/windows-server/what-storage-spaces-direct that need at ...


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I don't have a solution for you but I kinda felt this deserves at least some sort of answer: To state the obvious, a machine is highly dependent on its storage. In a highly-available environment - where all VMs can run on any node - the nodes must all be able to see the storage for a VM otherwise they cannot be a host for that VM. So clustered shared ...



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