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Hyper-V 3.0 + Guest Windows Clustering + Fibre Channel

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Hi,

We have 2 host servers with Windows Server 2012 (Hyper-V 3.0) setup on them and on this we have two guest VMs running Windows 2008 R2 for the purpose of windows clustering (To setup SQL clustering). For shared disks we are using IBM DS3512 as our storage and is attached via Fibre Channel using using pass-through disks on each Hyper-V host. While we could see the quorum and data disks on both the guest VMs but at the time of running the Cluster Validation Wizard we are getting the following error because of which we are unable to proceed further.

"No disks were found on which to perform cluster validation tests"

Can someone please guide us so that we could debug this issue further ? Please let me know if you need more details on the same....

Thanks
Ajay Sawant


PowerShell result form get-networkadaptervlan

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The output from PowerShell cmd-let get-networkadaptervlan has VMname. But, I cannot use select-object VMname.  

Can anyone advise how can I use select-object vmname? 

Thanks.


___________________________________________________ Naruphon blog: http://www.vm360degree.com

Hyper V Backup failing error 0x81000101

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Hi there

I have narrowed down a problem with Window Server backups for Hyper V and am looking for a solution.

The backups were failing with the following error:

<samp>Detailed error: ERROR - The shared restore point operation failed with error</samp>
<samp>... (0x81000101)</samp>
<samp>The creation of a shadow copy has timed out. Try this operation again.</samp>

I tried a number of things including the extending the time for the shadow copy to finish to no avail. What I found however was that if I deleted all current shadow copies the backup would be successful.

I did this using the following commands:

Disk Shadow

Delete Shadows All

After running this command and deleting shadow copies the operation will be successful. What are the next steps from here in fixing this problem, and what is causing  the problem- is it shadow copy space that needs to be increased?  

Thanks in advance


MIS5000


Group VMs

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I know grouping can be done via SCVMM but looking for a FREE tool. Especially now Hyper-V is available on Windows 8 and I have many test VMs that I like to manage easily with grouping rather looking all at once.

Can anyone recommend such a tool?

Thanks

SERVER 2008 (not R2) - HyperV guest (also Server 2008) loses most of network connectivity

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I have seen the fixes for this on 2008 R2, and I manage a few such servers for whom the hotfix has been successful, but I have been unable to find any help for this issue on 2008 (pre R2). Can someone help me out please?

Basically, the symptoms are as follows:

1. Everything fine, weekend backup runs and completes.

2. Suddenly, guest OS is "mostly on the LAN".  ICMP packets go in and out, no problem. '

Inbound TCP sessions seem to work fine. But it appears that server can no longer establish any outbound TCP sessions. 

Clients from outside the server can still access its SMB shares, but the server cannot initiate an SMB session to a client on the LAN

Same behavior with FTP

Same behavior with RDP 

3. Pausing / Unpausing the VM has no effect, disabling-enabling the NiC from within the GuestOS has no effect. HyperV host is unaffected. 

4. Have to reboot Guest OS completely in order to fix the issue. <

;

Once again, the Host and Guest OS is Server 2008 (NOT R2).

So please don't give me the link to the R2 fix (it won't install on this version). 

Thanks everyone,

Paul



Server 2012 - exporting an off copy that is replicated from another server

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Hi I'm exporting a replicar 2008 guest server on a 2012 server. The export is being made while the original is replicating to the copy I am exporting from.

Will this exported server be OK to import and run?

Convert From VHD to Fixed Disk

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Hello,
I have a number of virtual machines in the configuration of Windows 2008 R2 Hyper V Cluster I'm trying to transfer one of the servers from (Dynamic Disk (VHD to Fixed Disk through the VMM.
When I try to recall the virtual machine I get an error message "Boot Failure" and of course the server is not booting.
Please help.

Hyper-V 2012 WMI API - Getting VM State of a Snapshot

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Hello,

Is there a way to determine the state the VM was in when a snapshot of the VM was taken?

I am looking at the Msvm_VirtualSystemSettingData class, but I see no such information there.


Thanks in advance,


-Stoimen



synthetic network adapter missing

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Hi Folks,

I am using VMs win2k8R2 on a win2012 hyper-v in a cluster. One of my VM which is a DC is not displaying the NIC card anymore, I am using synthetic and have installed Integration services.

netsh interface ipv4 show interfaces------ shows 2 NIC 1= a loopback and another one is a local area connection but i cannot see that in network connection windows... it is missing but i can configure it using the netsh interface ipv4 command and am able to set IP on it, it becomes pingable but not visible. Can you guy  please help me explain what is goin on. I have trried to show_nonpresent and removed hidden devices and also tried to reset the TCP/IP and WinSock stack

?????????

Regards

 


Exchange Rocks

Imported windows 2008r2 vhd gets suck on classpnp.sys when booting up

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Hi

I  moved a working win2008R2 bootable vhd hosted on an old IDE interface  laptop and importing this into windows 8 Hyper-v running on a new AHCI  latptop. I can run through the steps outlined 

here http://msmvps.com/blogs/rfennell/archive/2011/07/13/moving-a-vhd-boot-disk-to-hyper-v.aspx.  However I simply get stuck on with BSOD when the boot loader tries to access classpnp.sys.

I have spent a few hours on this and rapidly coming to the conclusion that I should use my time else where. Things I have tried .

  1. changing the bios to IDE on my new laptop - Windows 8 doesn't like this at all and won't boot up
  2. Uninstalled the drivers in my win2008 r2 bootable vhd whilst in it booted into it. I then copy import the vhd into hyper-v, ran through the whole above link.
  3. If I sysprep with the MASSSTORAGE option windows does boot up but you hit 

Now it is possible to continue the installation but you enter the realms of  trying to  login as local admin to the machine ( even though I have a lovely DC on the server) - not ideal to be honest.

Things  I have yet to try is

  1. https://kouilb.wordpress.com/2012/06/27/vhd-boot-to-hyper-v-blue-screen ( note this is french so use Google Chrome translate) -this I think disables AHCI in the VM - though I am not sure this what I should be doing
  2. divine intivention

I would welcome the thoughts from the cummunity...

Daniel

Failover cluster error 5121

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Hi,

For one week now i am getting same error on one of my nodes. error is:

Cluster Shared Volume 'Volume1' ('Cluster Disk 1') is no longer directly accessible from this cluster node. I/O access will be redirected to the storage device over the network through the node that owns the volume. This may result in degraded performance. If redirected access is turned on for this volume, please turn it off. If redirected access is turned off, please troubleshoot this node's connectivity to the storage device and I/O will resume to a healthy state once connectivity to the storage device is reestablished. 

All my VM are on node 2 and if i try to migrate one of them to node 1 i get this error and i get error in dpm also.

Can anyone help with this please and is there way to fix this without turning my vm's off


RAID 5 set for VM

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I have two ISA servers on a Hyper V which the physical hard drive is almost full. The server is configured with 4 150GB sata drives in a RAID 5 set. I have purchased a new 500 GB drive for the server and would lke to export one of the ISA vm servers onto this new drive (no RAID). Is it possible to run one server on the RAID 5 set and one on a seperate drive (no RAID)? Or would it be best to try and find one or two 150GB drives and add them to the current RAID 5 set?

thx,

l

Best practices for backing up Hyper-v

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I have a situation, we are just completed a Hyper-V environment with about 60 VM's. Question is how do I backup all these, should I treat each VM as an individual server or backup the hyper-v hosts? The environment comprises of a DAG, SQL cluster and a few other Windows servers. I am using a backup solution for this purpose (SBE to be precise)

Hyper-V on iSCSI boot - not booting once LAN is configured

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I am having an issue with Hyper-V once I install NIC drivers.

Scenario:

I have 2 x Servers that are configured to boot via iSCSI from a NAS. The hyper-v install is grabbing the iSCSI boot information i assume via iBFT from the NIC as it is not a HBA iSCSI.

The installation goes off without a hitch, it see's the iSCSI disk and installs. When I boot the Hyper-V install there is only 1 NIC, the card that runs iSCSI (I thought that because it is using this for booting it may hide it like XenServer does), so I run the installation for the NIC drivers (All Intel adapters) which install the other NICs. Everything will work, i can setup VMs etc; but once I reboot the server, on the next boot up it stays on the splash screen for a while (little balls going in a circle) then get's a BSOD with something referring to the boot volume. I can press f8 and boot last known config and the server boots, but alas i assume this removes the driver because the other NICs aren't there.

The LAN and SAN are of course 2 different subnets.

Any advice on what i can try from here?

High ping times to Windows 2003 SP2 VM running on Hyper-V 2012

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Hello,

I have recently virtualized a Windows 2003 SP2 VM (all updates installed, the VM has been assigned a single VCPU). 

Overall things went fine, except that people have very high pings to the VM (both from workstations and from the host)

192.168.2.100 is the IP of the VM, executed on the physical host (Windows 2012 Standard Edition, Hyper-V is the only role installed).

PS C:\Users\Administrateur> ping 192.168.2.100

Envoi d'une requête 'Ping'  192.168.2.100 avec 32 octets de données :
Réponse de 192.168.2.100 : octets=32 temps=54 ms TTL=128
Réponse de 192.168.2.100 : octets=32 temps=93 ms TTL=128
Réponse de 192.168.2.100 : octets=32 temps=2 ms TTL=128
Réponse de 192.168.2.100 : octets=32 temps=7 ms TTL=128

Statistiques Ping pour 192.168.2.100:
    Paquets : envoyés = 4, reçus = 4, perdus = 0 (perte 0%),
Durée approximative des boucles en millisecondes :
    Minimum = 2ms, Maximum = 93ms, Moyenne = 39ms

Things I have tried to solve the issue:

- added the /usepmtimer switch to the kernel in the boot.ini of the VM

- disable tcp/large send checksum offloads on both the physical host and the VM

- update NIC drivers/firmware on the physical host

- disable VMQ on the virtual NIC

I am out of ideas.

Suggestions?


Slow VM/VHDX performance on enterprise grade gear...

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Hi All!

So I'm running into a bit of a problem with a new Server 2012 Core Hyper-V deployment. The VMs' disks are painfully slow. Here's a brief overview of the setup:

+ 2x HP Bl460 Gen 8's in a C3000 enclosure w/ 2x Flex-10 modules

     - Each server has 256GB RAM

     - Each server has a HP FlexFabric 10Gb 2-port 554FLB Adapter and a HP Flex-10 10Gb 2-port 530M Adapter

     - Each server has 2x Intel(R) Xeon(R) CPU E5-2640 0 @ 2.50GHz

+ A 6 node HP P4500 cluster with each node connected via two 10Gb NICs bonded

     - Servers are connected to the SAN via iSCSI using the MS iSCSI Initiator and HP Leftand DSM for MPIO for multipathing.

     - Jumbo frames are configured for the iSCSI NICs in the server, switch, and P4500 nodes (confirmed by "ping -f -l 8000").

+ The two Server 2012 boxes are clustered w/ MS Failover Clustering.

     - A quorum disk is provided by the SAN.

     - A 4TB LUN is presented to the cluster nodes as a CSV. (CSV Cache is enabled and set to 512MB)

     - Jumbo frames are configured for the physical NICs and logical MS teamed NICs for Migration and Cluster networks (confirmed by "ping -f -l 8000").

So, I'm experiencing severely bad perfomance with the VM's that reside on the CSV. The read times for the machines are pretty great and when running any kind of perfomance tool (e.g. ATTO, ioMeter, etc.) they return pretty decent marks. I think values reported by the tools may be a bit misleading due to them using rather small file sizes so cache is being used quite a bit. The VMs though are suffering pretty bad. Since this a new deployment of Hyper-V (trying to move over from vSphere), we've only migrated a few machines to test performance and validate the config before everything gets moved over. The boxes that have been moved, aren't where they should be, especially with the gear they are running on.

A repeatable test that I use to gauge the performance so far is just a simply file copy of a 2.5GB file. Inside of a VM, it starts off at ~100MB/s for a bit and then quickly drops down to ~20MB/s and then varies from ~20MB/s to a few KB/s. These results show up on thin and thick provisioned VHDXs, copying over the network or local on the same disk, and across disks. If I'm directly on the Hyper-V node, I can copy the same file to the CSV and I hit ~115MB/s steady for the whole copy. Also, if I deploy a VM the Hyper-V node's local disks I see ~115MB/s as well. It's only from within the VM's that reside on the CSV.

Since I can copy the same file to the same CSV that the VMs reside on from the node at full speed, I'm assuming that the iSCSI side of things are working but that doesn't appear to be the case since VMs can't copy that file to their VHDXs.

I'm kind of at a loss here and pulling my hair out (plus a few bruises on my forehead from beating my head against the wall). Any help would be greatly appreciated!

Thanks in advance!

Louis

All VMs on the same host get BSOD within a few minutes

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twice in the last few weeks, all of the VMs on the same host got the blue screen of death within a few minutes of each other.  the host is running windows server 2012, 32gb of ram with about 24gb available.  plenty of drive space.  the host did not crash during the bsod.

what would cause something like this?  how would i troubleshoot it?

Window Servers 2012 as a Virtual Machine Free of License

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1) By using Hyper -V role in Windows Server 2012. How many virtual machine I can Run as a fee of License. The Virtual machine which i want to run is windows server 2012.



hassan hanif

HyperV 2012 Virtual Fiber Channel

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Hello,

I am evaluating HyperV 2012 Virtual Fiber Channel functionality, but failed to make it workable.

I have Qlogic QMH2462 fibre card & Brocade switches {HSTNM-N005} with NPIV enabled. When I configure virtual fibre card in HyperV, it gets created without any error & I can see the VM vWWN/vWWP numbers in SanSurfer utility as well. But the assigned LUN to vWWN number is not getting detected in VM.

I tried upgrading latest firmware & drivers, but no luck....Pls help.

regards

Swapnil Patil


Swapnil

View Hyper-V Server 2012 Device Manager using Server 2012 / W8 RSAT

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Hi,

I'm trying to setup a test Hyper-V Server 2012 environment.  I'm having problems in remotely accessing Computer Management -> Device Manager for the Hyper-V Server.

I've disabled all firewall for both my W8 with RSAT and Hyper-V since the machines are on the internal network only.  Also went to DCOMCNFG and allowed remote anonymous login.  I'm able to see users and groups, events, service, disk management, etc.  The only thing I can't see is the Device Manager. 

I've checked the services on the Hyper-V, Plug n Play and the Remote services are up.  All machines are joined to the same domain and using domain admin account to manage Hyper-V.  Also added the domain account in Hyper-V's local admin group.

I've also tried installing a full GUI Windows Server 2012 and have the same issue using Server Manager to remotely view Hyper-V Server.

Any ideas on how to fix this?

Thanks.

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