Home | Site Map | Cisco How ToNet How To | Wireless |Search | Forums | Services | Donations | Careers | About Us | Contact Us|

Receiving error 2902 while trying to add a virtual hard disk

Network Sharing , TCP/IP, Internet, Wireless, Exchange, IIS, ISA and Print

Receiving error 2902 while trying to add a virtual hard disk

Postby fenton » Tue May 19, 2009 8:20 am

I am receiving error 2902 while trying to add a virtual hard disk from the
vmm server library.

Server has both hyper-v and vmm2008, vmm console, self service installed. I
was able to create vm' using standard hyper-v mmc console. Later we
installed vmm server, add the virtual machines to the library. Deployed the
vm to hyper-v host and clone the harddrive.

We want to maintain OS virtual disk in one harddrive volume and data virtual
disk in another harddrive volume.

Virtual OS disk(dynamic) size is 25GB, we have create virtual data
disk(fixed) in data disk volume with 127GB as size. Available free space
after the creation is 125GB. It took 3hours to create the 127GB virtual
disk. Now when I try to add the virtual data disk it errors out with error
2902.

Can't I attached the disk directly to virtual machine and use it. Why does
vmm try to create a copy, when it doesn't do while deploying a virtual
machine from library?
fenton
 
Posts: 421
Joined: Mon Dec 04, 2006 3:25 pm

Postby fenton » Tue May 19, 2009 8:20 am

I am just wondering if you can successfully attach a virtual disk in
library when its fixed size is less 25GB. If attaching a small VHD also
fails, please let me know and I will assist you to troubleshoot it.

Regarding your concern why VMM copied the VHD file to VM path, according to
my experience and analysis, I think there are the following reasons:
1. Data in Virtual hard Disk (VHD) will usually be changed by VM. If a VHD
file is shared by several VMs, the changes in any VM could affect others;

2. If VMM won't copy this VHD to this VM path, other VM will be unable to
attach this VHD.

3. If you have attach an ISO image, you will be able to enable "share image
file instead of copying it". This option is available because we usually
only read ISO image.
fenton
 
Posts: 421
Joined: Mon Dec 04, 2006 3:25 pm

Postby fenton » Tue May 19, 2009 8:21 am

I want to use attach the virtual data disk to the VM directly from the
library. I wouldn't want to make an other copy of it.

When I do it using Hyper-V default administrator tool, VMM doesn't recognize
the VM after attaching the virtual hard disk.

I do not have enough space to handle duplicate copies of virtual data disk.
How can I accomplish this task.
fenton
 
Posts: 421
Joined: Mon Dec 04, 2006 3:25 pm

Postby fenton » Tue May 19, 2009 8:21 am

If we attached VHD via VMM console, it will copy this VHD file under
Hyper-V folder. This is infeasible.

Therefore we can only attach it via Hyper-V console, which will directly
attach VHD and won't copy it. According to this situation, I would like to
recommend:
1. If possible, please move this 127GB VHD from VMM Library folder to
other location where this VM OS hard disk stores;
2. Please directly attach this 127GB VHD file to this VM via Hyper-V
Console;
3.In VMM console with "Host View", please right click this Hyper-V host
where this VM is running, click "Refresh";
4. Once this "Refresh" job finish, you will be able to see this attached
Virtual hard disk under VM property in VMM console.
fenton
 
Posts: 421
Joined: Mon Dec 04, 2006 3:25 pm

what guest service in VMM is

Postby fenton » Tue May 19, 2009 8:24 am

I successfully performed P2V on a W2K8 Ent server but the resulting VM has no
guest services. I gather they were supposed to be inserted during P2V. When I
attempt to install the guest services I receive an indication that the
install was successful but they fail to work. How do I troubleshoot this?
Also where is the "service" itself?
fenton
 
Posts: 421
Joined: Mon Dec 04, 2006 3:25 pm

Postby fenton » Tue May 19, 2009 8:24 am

As you can see from the following link, the Guest service in SCVMM refers
to "Integration components (hyper-v) and Integration Components (Hyper-V)
and Virtual Machine Additions (Virtual Server).
http://technet.microsoft.com/en-us/libr ... 46636.aspx
Integration Components (Hyper-V) and Virtual Machine Additions (Virtual
Server), collectively known as virtual guest services in System Center
Virtual Machine Manager (VMM), improve the integration and performance of
virtual machines.

These Integration Components will be presented as the following services in
Hyper-V VM, which you can see in Service Management Console in the VM.
" Hyper-V Data Exchange Service
Hyper-V Guest Shutdown Service
Hyper-V Heartbeat Service
Hyper-V Time Synchronization Service
Hyper-V Volume Shadow Copy Requestor
fenton
 
Posts: 421
Joined: Mon Dec 04, 2006 3:25 pm

Unable to contact server Virtual Machine Manager ID 1605

Postby fenton » Tue May 19, 2009 8:30 am

Q: I installed the VMM console on a PC running Windows XP SP3. When I try to
connect to VMM server I get the following error:
Unable to contact server Virtual Machine Manager. The credentials do not
have sufficient privileges in <server>.

Verify that the account used to have access to the server <server> Virtual
Machine Manager, and then try again.

ID: 1605

A: I have some experience on this kind of accessing issue and this kind of
issues is usually involved AD authentication and startup account
configured for VMM services. Please allow me to share my analysis on this
first.

Analysis:
1. One requirement to logon VMM admin console is that the logon user must
be in "Administrator User Role".

2. I believe you must type correct password for the logon user, thus the
error could be the wrong password associated with the destination SPN for
this VMM service.

3. By default, domain admins has the privilege to access VMM console.

According to this analysis, I would like to recommend the following action
to move forwards.

Suggestions:
1. Please ensure the startup account of VMM service are "Local System". If
it is domain account, please change it to "local system" and restart the
computer.
This is because the required SPN host\machinename is registered on
computer account, not domain user account.

2. If the step is not applicable, I still recommend you to configure this
logon user to be a member of "Administrator User Role" via
http://technet.microsoft.com/en-us/libr ... 56087.aspx
If this issue unfortunately persists, please follow the steps below to
collect information for our further investigation.

3. Please use "Domain Administrator" to access VMM server.

Action Plan:
1. Please check if you can connect VMM console by domain administrator
accounts.

2. Please check if the same user account can access VMM console on other
computers, such as VMM server.

2. Double confirm the following audit policy enable on "default domain
policy" and "default domain controller policy" (if SCVMM server is a DC)
Account Logon Events - Failure
Logon Events - Failure
fenton
 
Posts: 421
Joined: Mon Dec 04, 2006 3:25 pm


Return to Networking

Your Ad Here

Who is online

Users browsing this forum: Google Adsense [Bot] and 8 guests