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15

A vCPU can only be mapped to a single physical CPU. You can't take 4 physical CPUs and make a single vCPU that's 4x faster; it's just not how it works. Hyper-V is limited to assigning 4 vCPUs to a VM (last I checked). If you need significant CPU power, go physical, there's no sense in adding virtualization overhead to something that CPU intensive and ...


11

While the scenario you describe would work, the "best practice" approach is to not run any roles on the Hyper-V host other than Hyper-V; all services should run on virtual machines running on the Hyper-V host. The hardware you describe should be more than capable of running three Hyper-V hosts; especially since a dedicated DC for 13 users would require ...


10

Your host ran out of disk space (or thought it did, can happen with flaky clusters or SANs)


8

You're confused. The Hyper-V host will run just fine on SCSI (or SAS) disks. All of the documentation that you're reading is referring to SCSI/IDE virtual devices. As in, not the physical hardware in your server, but rather the virtual hardware that's configured on the guests.


8

You can export security settings with: secedit /export /cfg X:\new.cfg Then you edit new.cfg (it is ini format) and change line "PasswordComplexity = 1" to "PasswordComplexity = 0". Apply it on Hyper-V server with: secedit /configure /db C:\Windows\security\new.sdb /cfg X:\new.cfg /areas SECURITYPOLICY You can find more details in this blog post.


8

No, live migration requires shared storage (on both Hyper-V or VMware ESX) for Hyper V versions below 2012. It is possible to do a live migration without shared storage on Hyper V with Server 2012's Shared Nothing functionality.


7

I use VMs because they are portable. When you attach a physical disk, you lose most of the portability. It is much easier to copy a VHD file to another host than it is to move the physical disk between them.


7

Why not? I mean why isn't it possible? It is currently impossible to install the USB driver on x64 versions of windows, due to signing issues, but you only want to use the network client part, so I fail to see how that would be a problem. You'll just have to deal with everything from the command line. Hyper-V Server 2008 R2 is just a Windows Server 2008 R2 ...


7

Are there any issues with Hyper-V (on Server 2008 r2) if the host is formatted as GPT? EUFI/EFI based systems can boot to a GPT disk, all can use GPT disks as secondary disks. Someone out there has tried this... Yes, yes they have.


7

You only have one DC? Get a second DC. Seriously. Promote a file server running on a 486 in the basement if you have to. Stop running with a single DC. Now. Otherwise, it should be fine to reboot them in any order, as long as things are all up and happily running between rebooting one and the next. Also, regarding your virtualization queries: Always keep ...


7

200 Mailboxes falls under the "small installation" category. The performance of Exchange 2013 running as virtual machine is perfectly fine on modern hardware. I no longer have physical Exchange servers as a result. Having enough RAM is key. Disk I/O and CPU needs are extremely low. Microsoft's own Exchange 2013 hardware guidelines are reasonable and outline ...


6

The Intel Xeon X5150 is a dual-core CPU that was used in systems from mid-2006 until 2007. It ran in systems that could accommodate two CPU sockets, so at most, you can have four usable cores if both sockets are populated. If only one CPU socket is populated, you won't be able to create a virtual machine with more than two cores. In a VMWare, Hyper-V or ...


6

We used to have a problem like this where I'm at. I don't remember the exact details, but the final solution had to do with a conflicting mac address assigned dynamically to a virtual network adapter. Pinning those down to they weren't dynamic helped a lot. You normally don't want to do that because it can make it harder to move a virtual machine to a ...


6

To obtain a list of installed patches you can do: wmic qfe list To uninstall a listed patch, you do: wusa /uninstall /kb:<kbnumber> Here are some links with more information: http://www.systemcentercentral.com/BlogDetails/tabid/143/indexid/57960/Default.aspx http://support.microsoft.com/kb/934307 ...


6

Hyper-V Server is an embedded hypervisor without any graphical UI; in this, it is very similar to a Server Core installation of Windows Server 2008, or to a VMWare ESX server. You can only do command-line management from the console, and guests are accessible only remotely. You're right, if you need to run VMs and access them from the same server console, ...


6

Plenty of people have tried VMWare ESXi on Atom, and have come to the conclusion that it works if you get the right motherboard, but performance is absolutely awful. I can't see this being different for Hyper-V. You're going to be able to buy a cheap AMD Opteron system with virtualization built-in and fully supported by Hyper-V for as little as an Atom ...


5

Windows 8 Server Hyper-V 3 has provided the "live migration without shared storage" feature. http://www.jamesbannanit.com/2012/03/windows-8-server-hyper-v-live-migration-without-shared-storage/


5

This might not fix your problem but...any Hyper-V box should have one NIC dedicated to administering the host (ONBOARD NIC for HOST) and one or more NICs dedicated to the VMs (Additional NIC for Hyper-V). I would do this: Delete your existing Hyper-V network in Hyper-V manager. On the host, you should now have only 2 NICs visible, ONBOARD NIC and ...


5

I'm with you too. If your hot server experiences a failure ALL the machines running on it will have to migrate to the other box, but if you load balance only half will have to migrate. Just make sure you have enough headroom on both boxes for either to fail-over.


5

look at this link it will do what you want http://blogs.technet.com/b/m2/archive/2010/07/29/how-to-get-the-ip-address-of-a-virtual-machine-from-hyper-v.aspx


5

After going through forums.. finally found the solution. (the link is here ) When you start the VM under Hyper-V, you get a Multi-Boot option, Disk2Vhd Windows Server 2003 Standard Windows Server 2003 Standard You must boot the system with Windows Server 2003 Standard and not with Disk2Vhd one.. Thanks to the guy who found out!!! - I wasted almost a ...


5

A grep CONFIG_HYPERV /boot/config-2.6.32-5-amd64 shows CONFIG_HYPERV is not set. It appears that Debian has chosen not to build those modules. I am reading about it, several articles mention hv not being well supported by MS, and some people want to drop it. I looked and the hv source is present in the 2.6.32 kernel source package (drivers/staging/hv). ...


5

First, Windows 2000 only supports a single virtual processor on Hyper-V. Second, measuring CPU usage of the host server is not as simple as using Task Manager, since Task Manager is itself running in a virtual machine. For more information on measuring CPU usage in Hyper-V, please check out this article.


5

Take Hyper-V out of the question and the answer becomes obvious. Configure Windows Firewall on the guest (or a hardware firewall between the clients and the server) to allow only those ports. Configuring this has nothing to do with Hyper-V.


5

If there is only one barista working at your favorite coffee shop and you show up with four co-workers, on average it will take longer for each of you to receive a drink. Similarly, virtual servers will not perform well when sharing a single spinning disk. The reason is simple: disk latency is the main performance bottleneck in most computing applications! ...


5

remove the shadow copies. that will do it! vssadmin delete shadows /all


5

In order to cluster Hyper-V virtual machines, you need the VMs to be on a shared storage which can be accessed by all cluster nodes; since you are using an iSCSI SAN, this should already be your case. You need to set up the cluster and then configure the VMs as cluster resources. In order to do this, you'll need to shut down the VMs, but if they are already ...


5

1518 is the maximum frame size for "old school" 802.3 Ethernet. If frame checksum sequence is offloaded to the NIC then 1514 is the maximum frame size (since the 4-byte frame checksum will be added by the NIC). 1500 is the IP maximum transmit unit (MTU) for Ethernet, since 1500 bytes of payload are available in a 1518 byte Ethernet frame. Setting the NIC's ...


5

There are lots of libraries and GUI tools to manage Hyper-V as suggested by TomTom and also includes the MMC Hyper-V Manager Microsoft provides. However, all these tools assumes a particular set up before they can actually connect and be useful. If you are really messed up and have only the server core installation, in a different domain, with a expired ...


5

Exchange Server 2013 runs very well in a virtual environment. Have a look at Best Practices for Virtualizing & Managing Exchange 2013 for some, ahem, best practices. Flashy whitepapers aside, though, 200 mailboxes could well be served by a VM with a meager quantity of RAM and JBOD storage. (I'm a little squeamish to give specific numbers here, because ...



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