Hyper-V 2012 - Guest Virtual Machines Comms at Layer 2 - High TCP Retramissions
Hi All, Currently have 10 Hyper-V Hosts, all running on Cisco C220-M3 server. Virtual Machines running Server 2008R2/2012 on traditional layer 2 network are having high TCP retransmission rates...
View ArticleMix ISCSI and Fibre storage on 1 host
Hello,I really cannot find anything that talks about presenting both Iscsi and fibre (fcoe) LUNs to 1 hyper-v host. I doubt that it is very wise to mix fibre and iscsi storage on 1 hyper-v host.
View ArticleFile Server of Hyper-V
Hi,We are looking to move from physical fileserver to Hyper-v Virtual file server.we will use SAN storage to store VM's .Existing data size is around 5TB and expected to be in next 2 years is 10TB.It...
View ArticleBSOD in VM
I've got a hyperV 2012 system with several VM's. One of the VM's has thrown a BSOD a couple of times in the last month and I was wondering if the procedure for figuring out the cause is a little...
View ArticleWhat is the -AutoRecovery.avhd suffix in the end of the VHD file names?
I´m doing backup using a simple script in my WIn2012R2A batch file is combined with a simple set of commands in a diskshadow.txt file (see below)There´s NO snapshots created (ever) and in the log file...
View Articlehow configure setup cluster between virtual machine (with in Hyper V and...
What is cluster and how configure setup cluster between virtual machine (with in Hyper V and between Hyper V servers). how to test cluster is working in both scenarios
View ArticleI need to implement a backup routine an Exchange 2010 VM and a Virtual DC....
Hi, I have Failover Cluster running Windows 2012. This cluster is hosting an Exchange 2010, a Virtual Domain Controller (not my choice) and a VM running McAfee ePO. Theses VMs represents 1 TB of...
View ArticleVM Poor Performance
Hyper v 2012 R2. We had a VM with 4vCPU's, 80GB HDD and dynamic 4-8GB RAM. This VM would often "not respond" to clicks and in general had very poor performance. We used performance monitor and that...
View ArticleHyper-V 'VM name' failed to initialize
Windows Server 2012 R2 When I attempt to start any of my three VMs I get a "failed to initialize error" Looking in the event viewer for hyper-v, I'm noticing an error: "The WMI namespace...
View ArticleClik here to view.
Unable to install hyper-v role using powershell script on server 2012 R2
Here's my script:Clear-Host $Host.UI.RawUI.WindowTitle = "Install Windows Features and Roles" #Add spaces so messages appear under the progress bar Write-Host "" Write-Host "" Write-Host "" Write-Host...
View ArticleHow to fail over from replica server where the replication has been removed?
We had 2 physical servers and both running Windows 2012 R2 Server Standard.We implemented the cross replication method between this 2 servers with NO SAN/NAS at all in between purely just disk on...
View ArticleHyperv - best practices to make backup of virtual machines
Hi there. What are the best (free) practices to achieve backup of hyperv server and their virtual machines?Please advise.With best regardsbostjanc
View ArticleServer 2012 Hyper-v Guest machines keeps losing internet connection
Hello All,I have a server 2012 R2 with Hyper-V installed. Within Hyper-v, I have 3 guest machines: Guest1, Guest2, and Guest3.I also have 4 physical Network Interfaces on the server. One set with...
View ArticleHow to expand disk space of a virtual disk running Ubuntu in Hyper V?
Hi. I'm stuck. I have a Windows Server 2008 running Hyper V. I guess there is a "logical volume" or "logical partition" (i.e. /dev/mapper/machine-name) running Ubuntu 12.05.4 that is running out of...
View ArticleClik here to view.
Unable to see shared vhdx's in Guest Cluster.
Hi, I am trying to create a guest cluster using shared vhdx's as the means of storage.But for some unknown reason I can't see my disks. Although I can see them when I run a validation test. But it's...
View ArticleVM bluescreen on Hyper-V node failback
Hello,Have Hyper-V cluster of 3 nodes, using SMB 3 share as storage.Each cluster node has the team of two nic's for all traffic (storage, management, cluster and live migration).If i disconnect all two...
View ArticleFailing to create a new VM with Error: This user isn't allowed to sign in to...
Running Windows 2012 R2 Datacenter, with Hyper-V role installed, domain joined, domain account is both a local admin and a hyper-v admin. If I try to create a new virtual machine (either via UI, or...
View ArticleNetwork issue on VM
Hello, i'm currently installing a third party antivirus product with IDS functionality and all the servers hosted on hyper-v servers (both 2012 and 2012 R2) shows portscan attempts in the firewall...
View Article2012 hyper-v replica break and re-enable replication without full copy
Hi,When I break and then re-enable replication, its doing a full initial copy1. Is it possible to break and re-enable replication without doing a full initial copy?Thank youRobert
View Article2012 hyper-v replica page file best practice
Hello,As I understand the best method of excluding page file and have a good planned failover, is to initially exclude the page file on a separate VHDX, then shut down system, and copy the VHDX with...
View Article