Snapshot Destroying status

July 5, 2013, 6:27 pm

≫ Next: how I can build virtual private network with 20 clients in hyper V

≪ Previous: Export/Import VM on Hyper-V with error 'General access denied error' (0x80070005).

Hi,

So I was going through the process of merging snapshots. I usually power down the VM, then delete the snapshot and then watch the status. Well I was doing to many things at once and in one case, I shutdown the VM but instead of deleting the snapshot I deleted the VM. The status then showed it destroying! I wasn't too worried until after it was done and now when I go to look at files, the main VHD is there and so is the AVHD? Does this mean it didn't merge? Do I have to do it manually now? Any help would be great?

Thanks.

↧

how I can build virtual private network with 20 clients in hyper V

July 5, 2013, 9:31 am

≫ Next: Pros and cons? One large vhdx or several smaller vhdx files?

≪ Previous: Snapshot Destroying status

hello,

can I build virtual private network (I mean network whith 20 clients) with hyper V ,

if yes do I need second adapter for that? and which steps I have to take , is there any usefull site which explains easely how to achive my goal.

thanks

johan

h.david

↧

Pros and cons? One large vhdx or several smaller vhdx files?

January 29, 2013, 1:11 pm

≫ Next: Hyper-V Replica Stuck on Merge in Progress - No Percentage

≪ Previous: how I can build virtual private network with 20 clients in hyper V

I have several appx. 6 TB of space I'm going to use to install several VMs on.

1.) Since I'm using Hyper-V 2012, I'd want to use the .vhdx format and not the older .vhd, right?

2.) Should I pre-plan what disk space I want to use for each soon to be VM and pre-create my .vhdx files in advance to use that space, or should I just create one big, 6TB .vhdx file and when I install each OS, simply choose what size I want the disk to be at that point?

3.) Keeping backups in mind, it seems like having indiviual .vhdx files for each OS will make backups easier, wouldn't it?

Thank you,

↧

Hyper-V Replica Stuck on Merge in Progress - No Percentage

June 9, 2013, 12:21 pm

≫ Next: How to uninstall Hyper-V?

≪ Previous: Pros and cons? One large vhdx or several smaller vhdx files?

Running Windows Hyper-V Server 2012 core on two machines. Attempting for the first time to backup one VM from each Hyper-V Server to the other.

HV1 has a 1.5 Tb fixed VHDX that was approximately 1/4 used. I initially attempted to start replication from HV1 to HV2 across the WAN, but realized that was going to take too long. So I put HV1 and HV2 on the same LAN and restarted replication.

I also tried to replicate from HV2 to HV1 a 4 Tb fixed VHDX. There was about 1.5 Tb used of the 4 Tb VHDX.

The VMs on both Hyper-V Servers have been shut down. The files look like they copied from one Hyper-V Server to the other, but my HV1 has been showing "Merge in Progress" for over a week. HV2 seems to have completed whatever it needed to do within 1-2 days. There is an AVHDX file on HV1, but it is not obvious to me that is changing in size at all (either growing larger or smaller - as I assume should occur as part of the merge).

On HV1 the status shows "Merge in Progress" with several periods, which cycle between 1 and 5, but there is no other progress indicator. I was expecting something to say X% completed? It looks like something is going on. The HDD indicator is on and I can hear a lot of disk activity on HV1.

I have tried rebooting HV1 twice to see if something was stuck, but that didn't seem to make any difference. Shortly after the reboot both VMs on HV1 were back to "Merge in Progress" status.

When I look at the DIR output on either Hyper-V Server I see some slight changes in the amount of the HDD used, but not nearly as much as I would think given the amount of disk activity.

Given both Hyper-V Servers are on the same LAN right now my intention was to wait for the merge to complete before returning HV1 to its home and restarting replication across the WAN.

But this has been running for over a week. Copying the whole VHDX shouldn't take more than a few hours, so I don't understand why a merge is taking so long.

Any ideas as to why this doesn't seem to be making any progress?

P.S. Both Hyper-V Servers have a RAID hardware controller. HV1 is running RAID5. HV2 has a better controller and is running RAID6.

Theokrat

↧

How to uninstall Hyper-V?

September 27, 2011, 1:12 pm

≫ Next: Forum FAQ: You cannot allocate page file to Microsoft SCSI Virtual Disk and boot from a Microsoft SCSI Virtual Disk in a guest.

≪ Previous: Hyper-V Replica Stuck on Merge in Progress - No Percentage

Hyper-V isn't uninstalling. It has had some errors. Are there any known programs that cause such error? I need to get rid of the Hyper-V role. When trying to uninstall, I get this error:

Hyper-V: Removal failed

<Error>: Attempt to un-install Hyper-V failed with error code 0x80004005. Error HRESULT E_FAIL has been returned from a call to a COM component.

↧

Forum FAQ: You cannot allocate page file to Microsoft SCSI Virtual Disk and boot from a Microsoft SCSI Virtual Disk in a guest.

February 22, 2010, 12:56 am

≫ Next: Configure Static Ram in Hyper-V Server 2012

≪ Previous: How to uninstall Hyper-V?

Symptom

A Hyper-V guest could not boot from Microsoft SCSI Virtual Disk; in addition, you cannot allocate page file to a Microsoft SCSI Virtual disk.

Cause

The SCSI controller is synthetic only and it would not be loaded yet when trying to create page file. It’s the same reason you can’t boot from SCSI.

Answer

In a Hyper-V guest, you can have 3 IDE disk plus the CD/DVD. Instead of SCSI virtual disk, you can use IDE virtual disk. You don’t lose any performance. IDE is just as fast as SCSI.

Applies to

Windows Server 2008, Windows Server 2008 R2

↧

Configure Static Ram in Hyper-V Server 2012

July 7, 2013, 12:51 am

≫ Next: Lost admin password on virtualized 2008 AD server in MS Hyper-V

≪ Previous: Forum FAQ: You cannot allocate page file to Microsoft SCSI Virtual Disk and boot from a Microsoft SCSI Virtual Disk in a guest.

basic question . How can assign static memory ?

I go to VM setting and in the start up ram type 4048mb, but it say number between 8-2122.

if i want configure my VM to use 4G static Ram , how can i achieve this ?

I Love God,because he help me to find Technet.

↧

Lost admin password on virtualized 2008 AD server in MS Hyper-V

July 26, 2010, 4:45 pm

≫ Next: hyper v 2012 nic adapter

≪ Previous: Configure Static Ram in Hyper-V Server 2012

Is there a way to recover the administrator password, on a hyper-v virtualized 2008 AD server?

↧

hyper v 2012 nic adapter

July 7, 2013, 12:36 pm

≫ Next: how to download Hyper-V Integration Services for window server 2012

≪ Previous: Lost admin password on virtualized 2008 AD server in MS Hyper-V

i installed server2012 on server dell r620 r420 t320

im used with hyper v service

and run server2008r2 on hyper-v

i have 4 adapter on server r620

i config 1 of the nic to use on vhd

the problem is some time the traffic is very low ( ping very poor)

to fix it i need to remove nic form the 2012 and to configur again ....

im update all the driver and the frimware but not help !!!!

thx

dror

↧

how to download Hyper-V Integration Services for window server 2012

July 7, 2013, 9:21 pm

≫ Next: SCSI disk performance of virtual server

≪ Previous: hyper v 2012 nic adapter

Dear Support,

how to download Hyper-V Integration Services for window server 2012? Thx!

Regards,

↧

SCSI disk performance of virtual server

July 7, 2013, 9:50 pm

≫ Next: Hyper V Server Configuration

≪ Previous: how to download Hyper-V Integration Services for window server 2012

When we use virtual machine like Hyper-V, virtualbox, vmware player,

Virtual SCSI or SAS controllers and disks are faster than IDE controllers and disks ?

↧

Hyper V Server Configuration

July 7, 2013, 11:56 pm

≫ Next: Hyper-v host without connection to web after creating virtual network

≪ Previous: SCSI disk performance of virtual server

Hyper V server configuration

↧

Hyper-v host without connection to web after creating virtual network

July 8, 2013, 12:01 am

≫ Next: Error while validating failover cluster - HyperV 2012

≪ Previous: Hyper V Server Configuration

Hi,

I'm using Hyper-v 2012 core with a single NIC.

After creating a virtual network (I activated the option "Allow management system to share this network adapter") all settings of physical NIC are migrated to the new virtual NIC. Guests can connect to the web using their own IPs, but host is completely isolated.

Did someone have the same problems?

Thanks for your help!

↧

Error while validating failover cluster - HyperV 2012

July 8, 2013, 2:15 am

≫ Next: Trying to import vhdx file without the xml file?

≪ Previous: Hyper-v host without connection to web after creating virtual network

Currently I'm setting up a private cloud lab setup. It consists of two hosts and one SAN box. While validating the cluster configuration everything seems fine except the below error:

Both the hosts have same configuration, same no. of virtual switch. Is there anything I'm missing here?

I'm a newbie to these things. Kingly help me in resolving this.

Thanks,

Arun

↧

Trying to import vhdx file without the xml file?

July 8, 2013, 2:18 am

≫ Next: How to backup Server 2012 Hyper V to external USB

≪ Previous: Error while validating failover cluster - HyperV 2012

I had a hyper-v 2012 server go bad. I was able to get hyper-v reinstalled, and I do see the .vhdx files in their original locations, but I no longer see any of the xml configuration files. Is there any chance I will be able to import these servers or save them and get them back?

↧

How to backup Server 2012 Hyper V to external USB

July 8, 2013, 4:16 am

≫ Next: Cent OS guest VM stops from time to time

≪ Previous: Trying to import vhdx file without the xml file?

Hi All,

What is the best way to backup a Server 2012 Hyper v host and VMs? I would like to back these up to 2 external USB drives that will alternated daily.

Any help appreciated

Kind regards

Shane

↧

Cent OS guest VM stops from time to time

July 8, 2013, 8:14 am

≫ Next: After powercut: An error occurred while attempting to start the selected virtual machine (s). Failed to Power on with Error 'The file or directory is corrupted and unreadable'

≪ Previous: How to backup Server 2012 Hyper V to external USB

Hi!

We use Win 2008 R2 SP2 with Hyper-V. As a guest OS we use Win 2008 R2 and CentOS 5.5-5.8.

The Windows guests work fine, but Linux guests from time to time just stops. Usually it happens once in 1-2 months. Stops only one VM at one time (I haven't seen that 2 guests became stopped at the same time).

Symptoms:

1. Unable to connect to the damaged guest VM: ssh and ping doesn't work. Web server on the guest become unavailable.

2. In the Hyper-V console I see that CPU utilization for the stopped guest always = 6%. I can't connect to the gust via hyper-V console as well. Only reset helps.

3. I have zabbix agents installed on all guests - I can't see nothing strange before these stops- the guest's CPU is not busy and the guest has enough free RAM.

4. I can't see any errors in Hyper-V logs

How can I solve this problem?

↧

After powercut: An error occurred while attempting to start the selected virtual machine (s). Failed to Power on with Error 'The file or directory is corrupted and unreadable'

July 8, 2013, 6:20 am

≫ Next: An error occurred while moving the virtual machine(s) storage.

≪ Previous: Cent OS guest VM stops from time to time

Currently unable to start VM server after power cut, getting error message: An error occurred while attempting to start the selected virtual machine (s). Failed to Power on with Error 'The file or directory is corrupted and unreadable'.

The vhd in question is SQLDATA drive on IDE controller 1, other drives with this VM appear ok, controller 0 HD1 - OS & HD2 - Transaction logs. Suggestions please.

↧

An error occurred while moving the virtual machine(s) storage.

July 8, 2013, 2:57 pm

≫ Next: How should I do a defragmentation to a Hyper-V virtual machine?

≪ Previous: After powercut: An error occurred while attempting to start the selected virtual machine (s). Failed to Power on with Error 'The file or directory is corrupted and unreadable'

Hoping someone can shed some light.

I have 4 servers. 2 are clustered storage (using storage spaces) (connected to an external JBOD chassis)(ST01 & ST02), the other 2 are cluster HyperV 2012 servers (HV02 & HV03). I'm able to perform most HyperV functions (in Failover Cluster Manager) just fine using the CSV storage presented by the cluster storage (create new VMs, mount drives, mount ISOs, run VMs etc). The problem comes up in this scenario.

Log into HV02 and open Failover Cluster Manager.
Create a new virtual machine.
This works fine and I can see that the owner node for the new VM is HV02.
Now, if I happen to log into HV03 and open Failover Cluster Manager and try to make a change (for example, move some of the storage on the CSV to a different folder), I get an Access denied error.
It looks like this.

(I can't post images yet apparently) so...

================

X An error occurred while moving the virtual machine(s) storage.

Failed to get the disk information.

'': account does not have permission required to open attachment '\\server\share\folder\folder\vm.vhdx'. Error: 'General access denied error' (0x80070005). (Virtual machine ID )

=======================

The bolded part is the ONLY thing that I redacted...all the rest is verbatim.

I've been over and over the permissions (both share and NTFS) and cannot discover what I'm missing. The hard part is that it's not entirely clear from this error message what account exactly it is that doesn't have permissions.

The share permissions on the folder where this file lives has HV02$ and HV03$ with Full Control. It also has the HyperVCluster$ machine account that is used by the HV cluster with Full Control.

The NTFS permissions are the same. Full control for all 3 machine accounts.

This isn't the only place this happens either. I get a similar error if I create the machine on HV02, then log into HV03 and attempt to do a live migration.

So it seems that I cannot manage any resource created by HV02 when I'm logged into HV03 (and vice versa).

I've been through dozen of articles discussing permissions (mostly around the NT Virtual Machine type accounts), but this seems like a red herring, since if that were the case I'd have to make manual changes every single time I created a new VM.

Thanks in advance for any help.

↧