Hi,
I have a question about the following scenario.
I have 2 physical hyper v hosts (Server 2008 R2) and its having Exchange 2010 SP3 Mailbox / HUB /CAS VM's in both host.
Also i have configured Exchange DAG in this Mailbox servers and now i need to move these all the exchange VM's to new physical hosts.
This new hosts are configured with windows server 2012 R2.
Anyone can explain me how to successfully achieve this task without any errors.
Thanks
Madushanka
While we try creating a new virtual machine for our windows phone application, we are facing the following error.
-Failed to add device 'Virtual Hard disk
-Hyper V virtual machine management service account does not have permission to open attachment.
ERROR: General access denied error(0x80070005)
Hi
Server 2008 R2 Datacenter Hyper-V Cluster (3 Hosts in Cluster).
One of my Server 2008 R2 Standard VM's keeps rebooting itself every 3 minutes.
Got the VM into Safe Mode with Networking, stays up no problem. In Event Logs, there are thousands of Disk Event ID 51 errors ("An error was detected on device \Device\Harddisk1\DR1 during a paging operation").
Initially I thought this was a Hardware issue, but this is not the case (running on HP Storageworks MSA2312i SAN). All disks fine, all firmware on both Disks and Controllers upgraded to latest version.
Any ideas what may be causing this? The error is not present in any other VM's. Moving the VM across different hosts does not resolve the issue. Neither does moving the vhd files to different areas on the SAN.
Thanks
Hi
i have production hyper-v cluster with VMs and DR hyper-v cluster setup , between the hardware firewall hyper-v replica enabled and open port (80.443.135.139)- replication is successfully doing
but once the planned fail over start its not finishing (it showing failover in progress long time )
network administrator monitor the traffic saying many deny traffic is there.
my environment is very tight by firewall,
i need to know what are the traffic(ports) we have to open in firewall between the cluster.
I currently have a two node Server 2012 R2 Hyper-v Cluster (fully patched) with a Windows Server 2012 R2 Iscsi target.
The VMs run fine all day long, but when I try to do a live/quick migration the VM blue screens after about 20 minutes. The blue reports back about a “Critical_Structure_Corruption”.
I’m being to think it might be down to CPU, as one system has an E-2640v2 and the other one has an E5-2670v3. Should I be able to migrate between these two systems with these type of CPU?
Tim
Hi,
So, I must be misunderstanding something about how this works.
At the moment my knowledge is the following:
* If everything is fine, each hyper-v host in the cluster connect DIRECTLY to the storage - traffic is: Host <-> Storage
* If a host loses its connectivity to the storage, then it will redirect the traffic to another host that still has access to the storage. Some some traffic is Host <-> Storage, and some traffic is Fail Host <-> Host <-> Storage
----
Now, at this specific moment, I have a 2 node Hyper-v 2012 R2 cluster connected to an iSCSI. Hosts are using MPIO and I am somewhat multiply connected to the SAN
The FCM reports that the CSV is not in redirected access. However, only one hosts shows the CSV disk in Nodes -> Disks.
----
Now, on Node A, I am running a VM on which I am running SQLIO in preparation for SQL Server install. Node A has 2 Ethernet cards 10 GB on the iSCSI network. Node B has the same. Node A is the one not showing the CSV disk in Node A -> Disks. This is what I see: (reading test, not yet up to the writing ones)
Node A - Eth1 - S:5 Mbps, R:900 Mbps
Node A - Eth2 - S: 5Mbps, R:900 Mbps
Node B - Eth1 - S: 10Mbps, R:900 Mbps
Node B - Eth2 - S: 1.8 GIGA bps, R:900 Mbps
----
Writing test:
Node A - Eth1 - S: 500 Mbps, R:2 Mbps
Node A - Eth2 - S: 500 Mbps, R:2 Mbps
Node B - Eth1 - S: 1.4 GIGA bps, R:9 Mbps
Node B - Eth2 - S: 800 Mbps, R:1.1 GIGA bps
----
So to me this means:
* the traffic from the VM is actually routed through the other node.
* Node B is connected to both storage controller but only 1 port on each. (not the issue atm, but eventually I'd like to see all 4 ports)
* Node A is connected to Node B
* Node A and Node B MPIO works very well.
----
When it is the writing test:
* Node B is sending twice the data because of the 2 way mirroring (I am using tiered storage and it is configured on the hyper-v)
----
As for the storage, it sticks at 220 MB/sec for reads or writes at the moment, which is normal considering that only 2 out of the 8 Ethernet ports are used (1Gbps)
Edit: It is actually starting to use more than 2 out of 8. Write went up to 360 Mbps
----
Question: Am I misunderstanding something when it comes to hyper-v cluster and redirected access ? If yes, what is it and how do I fix it? (Or where is the documentation on how to fix it)
Thanks
On my laptop i have windows server 2012 R2 data center edition installed connected to Wifi. I was able to install and configure to VM's on it. However i am little lost on how to configure the virtual switch for these two VM's. Below are the details:
IP Address : 192.168.1.155
Subnet: 255.255.255.0
Default Gateway: (Blank)
DNS: 192.168.1.254
I do not have any ethernet port, i only have wifi. I did create a virtual switch linked to the NIC (Wifi), and same virtual switch is used by the two VM's. I want few things out of this:
i) I should be able to RDC into both the VM's from other computer when on the same network.
ii) I also want the host and two VM's to be accessible from outside the network.
I need to know what IP addresses should i assign to the virtual switch and each of the VM's. Thanks in advance.
hi friends
in hyper-v 2012R2, is it possible to install an Application like Photoshop or any other App in Host & then be able to use & work with it in VMs?
thanks a lot
Hi,
I'm using this wmi query "
SELECT * FROM Win32_PerfRawData_PerfDisk_LogicalDisk WHERE Name!='_Total'" with namsepace asroot\cimv2 to get the disk related metrics but please let me know from this how to calculate the disk read latency and disk write latency metrics. I need an formula to calculate the latency.
Thanks in advance!!
Regards,
Raamesh Keerthi N J
hello guys, I installed Centos 6.5 on Hyper-V using Win 2008 x64 Standard
if set the CentOS box to DHCP internet connection works fine.
but if I set a static IP there is no internet connection.
any ideas guys on some work around on how to make a static IP works for Hyper-V with Linux box on it.
Thank you.
Every second counts..make use of it. Disclaimer: This posting is provided AS IS with no warranties or guarantees and confers no rights.
IT Stuff Quick Bytes
Hi,
I would like to know if it is posible to create an architecture with Windows Server 2012 R2 configuring VDIs and use these VDIs with my old hardware. I would like to boot my old machines using PXE directly from the VDI images so i dont need to install any operatig system in my old hardware.
The situtation i have, is a computer room we use for trainings. I have all these machines with Windows XP and 2Gb RAM and i dont want to replace all machines at the moment. I was thinking to use VDIs to solve this situation.
The reason for booting up using PXE is that i dont want users to start up computers in Windows XP and then run RDP to start up the VDI. I would like a solution where users should not be able to do anything and machines boot up directly to the VDI environment.
I would appreciate any suggestions to my requirements based in your experience.
Many thanks and kind regards
Julian
Folks:
Alright, let's hear it.
I am tasked with migrating an existing Hyper-V HA Clustered environment from v2008R2 to new server hardware and storage running v2012R2.
Web research is not panning out, it seems that we are looking at a lot of downtime, I am a VMware guy and I would do likely a V2V migration at this point with minimal downtime.
What are my options in the Hyper-V world? Help a brother out.
I have a Hyper-V Windows Web Server 2008 R2 (Core) that's only role is an FTP server. I know that the GUI is a blank desktop and task manager on a core server, but I cannot even access that. Every time I connect to the server (either via RDP or Virtual Machine Connection) I get a BSOD after I enter my credentials and the server reboots. The BSOD is not the same every time either, most of the time it's 0x00000050 though.
I can access remote powershell, psexec to the command line, issue remote commands, use RSATs, etc... but I cannot access the "desktop" i normal mode (I can in safe mode).
I didn't mind too much because I could do everything I needed to do remotely. But just recently we've developed a problem where OSX devices download files from the FTP EXTREMELY slow and the server needs to be rebooted. I'm not a fan of the "reboot fix" and need a more permanent solution.
Here's some more technical specs:
Host server: Server 2008 R2 Enterprise SP1, Dual Xeon E5645, 48GB RAM
Host server uses iSCSI connection to a Windows Storage Server Standard w/ a Xeon E5620, 12GB RAM so each VHD is using it's own iSCSI LUN and therefore independent (and redundant) spindles to increase I/O throughput. The Storage server uses a 10Gbps connection directly to the host server (iSCSI data is not sent over our main network).
Client Server: Windows Web Server 2008 R2 SP1 (core), 1 CPU, 1 GB RAM.
Here's what I've tried so far:
1. Create a new virtual server and attach a copy of the FTP servers drive
2. Apply all windows updates from the internet and not our WSUS server
3. Remove our anti-virus from the client
4. Remove SCSI virtual devices from the virtual server
5. Remove all integration services
6. Using safe-mode, used autoruns to disable all services
Normally I'd just rebuild the server and copy all the necessary info over, but the FTP server has dozens of local users (and their passwords) that need to be migrated to the new server. I guess this can be done with the migration kit, just not on windows web server (booo). A 3rd party tool is an option as well if that's all there is available.
Any help will be greatly appreciated.
Hi.
I have a three node Hyper-V (2012 R2) cluster.
It has 12 CSV's connected. Two of the CSV's can only be brought online on one of the hosts. It seems, they are locked to that host in some way.
The end result is that when I take that host down for maintenance, the two CSV's go offline and all VM's on them, crash.
I suspect a particular VM of causing this but I don't know how to fix the problem.
Anyone?
Thanks in advance.
/Michael
Hello,
So I am the only IT person in our company. It's a mid sized business , we have about 90 employees. We have office 365 for office suites. We don't have Active directory or exchange server or any servers for that matter, we have two file servers in house but that's about it. We have a vendor (myhosting) for our email so they have a server for us on the cloud and they charge us by user. Most of our servers are hosted by Rackspace.
Now I have a pretty good idea about configuring servers including server 2012 but most of my career I have always been a helpdesk technician, tier 3, in all of the big companies I worked for in the past. However, this company doesn't have any ideas on how IT department is suppose to run, how it would involve a system engineer at the minimum so I they come to me for everything...advanced staff...so now they want me to come up with a plan to have IT in house, bringing all servers from racks-pace, implementing exchange server, AD ...( they have no idea what i'm talking about IT infrastructure, AD or Exchange server... they just want to cut costs... and they want everything to be done by me. This includes, planing, budgeting, implementing, deploying and IT Infrastructure by me...they point their figure at me for everything. I mentioned to them we might need an engineer but they pointed their figure at me...no wonder why they paid me a litter more extra than what other companies would pay for a helpdesk technician and i'm used to the money so I don't want to go back. Also, I do want advance my career somewhere so I want to do it all...this is stepping stone for me to be a system engineer.
So my question is:
1. What is the best Microsoft certification exam or a book I need to prepare my self.
2. Is it ideal to implement Active Directory for 80-100 employees, also is there a number of employee required for AD?
3. What is the best resource or guide I can get to help me design an IT Infrastructure for Midsized business?
4. What kind of networking do I need? Is it better to manage Networking, Firewall in-house when having IT Infrastructure in-house?
5. What are the minimum Hardware and Software I need to begin with?...we have about 20 instances on Rackspace...our SharePoint and web server is hosted by myhosting.com
4. What is the maximum for visualization...how many servers? Also, what servers are better off to put them in Hyper-v or any visualization...SQL, file servers?
5. Would AD and Exchange server be configure in one server and are called domain servers?
6. Is there a best tool or software to design an IT infrastructure ...that's already designed for that? Other than Visio?
7. What are the main networking infrastructure concepts I need to know for implementing IT Infrastructure in-house. DNS, DHCP, TCP/IP? What is the best resource/book/guide/too/ I can get to get a good understanding of how to implement those?
8. Are DNS and DHCP servers configure in a separate server, I know what they are but I never configured one...so how does it work...does it work in a server that has AD or it has to be on a different server?
9. Is it easier to get Microsoft partnership for midsize business or go through dealers?
10. What is the easiest way to get Microsoft certification? I have a good experience with Microsoft windows and products but never had any certification. How long does it take to study the required exams and get certified?
11. How long does it take to build an IT Infrastructure for midsize business (we are government contractors, most of our servers like SQL servers and web servers are for our clients but we have developers for dealing with those...I just need to bring those servers in-house and configure them as a company equipment and maintain them... kind of like System Administrator.
I appreciate any help on this...I do!
Best regards.
i have two Hyper-V hosts running Server 2012 R2 connected to a Fibre Channel SAN with an EMC back end. I am at the point where I have configured the zoning and can see the LUNs on the Hyper-V nodes using virtual HBA initiators. However, I cannot find any way to pass the LUNs through to the Virtual Machines running Server 208 R2. If I used the method of a shared SCSI controller I don't see the pint of the Virtual HBAs.
Needless to say, the Virtual OS does not see any LUNs at this point.
PC_Doctor
Is it possible to backup VM's using wbadmin or powershell's wbbackup and also exclude certain vhdx attached to the vm's being backed up. For example I have a server DC1. It has a C:\, D:\, and E:\ drive. The E:\ drive is drive that contains items I don't care if lost but also has a lot of data so I don't want to have to back it up (for times sake).
I've tried several things with excluding files but it didn't seem to work. I don't want to do backups from inside the VM as I have multiple VM's needing backed up.
Thanks!