VDI in a Hyper V3 cluster environment

Hi
I currently have 4 servers setup in a failover cluster. i currently have this running AD, SQL and arious other File services. the 4 hosts are running 2012 Data Centre with Hyper V3 installed. the hosts are a mixture of server 2012 and 2008R2.
i have also created 10 'VDI' machines as Windows 8, and they are currently being usd to remote into using RDP. they do not provide grapics support, so i have installed Quadro FX2000 graphics cards into the servers, and am going down the route of using RemoteFX,
along with this i have been informed by the application that i need to use a RDBC and everything along with this. i have installed with RD Virtualisation Host on the 4 hosts (needed some Windows updates to allow this installation) but ow im stuck. ideally
i want to keep the Failover capability with the clustering that i have currently but what is the best way to achieve this?
would i need to have 2 virtual mahcines with RDBC and the other necessary parts installed - 1 on each part of the cluster to allow for HA, or is there a better way? any help/ advice is most greatly appreciated.
many thanks
Chris

Hi,
Referring to your post, generally for allowing RDCB HA in server 2012 you can deploy on 2 VM. To get more idea for preparing RDCB with HA in server 2012 and Hyper-V Failover clustering on server 2012 with much useful guides.
Deploying RD Connection Broker High Availability in Windows Server 2012
http://ryanmangansitblog.wordpress.com/2013/03/30/deploying-rd-connection-broker-high-availability-in-windows-server-2012/
Implementing Windows Server 2012 Hyper-V Failover Clustering
http://www.msserverpro.com/implementing-windows-server-2012-hyper-v-failover-clustering/
Hope it helps!
Thanks.

Similar Messages

Unplanned failover in a Hyper-V cluster vs unplanned failover in an ordinary (not Hyper-V) cluster

Hello!
Please excuse me if you think my question is silly, but before deploying something in a production environment I'd like to dot the i's and cross the t's.
1) Suppose there's a two node cluster with a Hyper-V role that hosts a number of highly available VM.
If the both cluster nodes are up and running an administrator can initiate a planned failover wich will transfer all VMs
including their system state to another node without downtime.
In case any cluster node goes down unexpectedly the unplanned failover fires up that will transfer all VMs to another node
WITHOUT their system state. As far as I understand this can lead to some data loss.
http://itknowledgeexchange.techtarget.com/itanswers/how-does-live-migration-differ-from-vm-failover/
If, for example, I have an Exchange vm and it would be transfered to the second node during unplanned failover in the Hyper-V cluster I will lose some data by design.
2) Suppose there's a two node cluster with the Exchange clustered installation: in case one node crashes the other takes over without any data loss.
Conclusion: it's more disaster resilient to implement some server role in an "ordinary" cluster that deploy it inside a vm in the Hyper-V cluster.
Is it correct?
Thank you in advance,
Michael

"And if this "anything in memory and any active threads" is so large that can take up to 13m15s to transfer during Live Migration it will be lost."
First, that 13m15s required to live migrate all your VMs is not the time it takes to move individual VMs. By default, Hyper-V is set to move a maximum of 2 VMs at a time. You can change that, but it would be foolish to increase that value if
all you have is a single 1GE network. The other VMs will be queued.
Secondly, you are getting that amount of time confused with what is actually happening. Think of a single VM. Let's even assume that it has so much memory and is so active that it takes 13 minutes to live migrate. (Highly unlikely, even
on a 1 GE NIC). During that 13 minutes the VM takes to live migrate, the VM continues to perform normally. In fact, if something happens in the middle of the LM, causing the LM to fail, absolutely nothing is lost because the VM is still operating
on the original host.
Now let's look at what happens when the host on which that VM is running fails, causing a restart of the VM on another node of the cluster. The VM is doing its work reading and writing to its data files. At that instance in time when the host
fails, the VM may have some unwritten data buffers in memory. Since the host fails, the VM crashes, losing whatever it had in memory at the instant in time. It is not going to lose any 13 minutes of data. In fact, if you have an application
that is processing data at this volume, you most likely have something like SQL running. When the VM goes down, the cluster will automatically restart the VM on another node of the cluster. SQL will automatically replay transaction logs to recover
to the best of its ability.
Is there a possibility of data loss? Yes, a very tiny possibility for a very small amount. Is there a possibility of data corruption? Yes, a very, very tiny possibility, just like with a physical machine.
The amount of time required for a live migration is meaningless when it comes to potential data loss of that VM. The potential data loss is pretty much the same as if you had it running on a physical machine, the machine crashed, and then restarted.
"clustered applicationsDO NOT STOP working during unplanned failover (so there is no recovery time), "
Not exactly true. Let's use SQL as an example again. When SQL is instsalled in a cluster, you install at a minimum one instance, but you can have multiple instances. When the node on which the active instance is running fails, there is
a brief pause in service while the instance starts on the other node. Depending on transactions outstanding, last write, etc., it will take a little bit of time for the SQL instance to be ready to start handling requests on the new node.
Yes, there is a definite difference between restarting the entire VM (just the VM is clustered) and clustering the application. Recovery time is about the biggest issue. As you have noted, restarting a VM, i.e. rebooting it, takes time.
And because it takes a longer period of time, there is a good chance that clients will be unable to access the resource for a period of time, maybe as much as 1-5 minutes depending upon a lot of different factors, whereas with a clustered application, the
clients may be unable to access for up to a minute or so.
However, the amount of data potentially lost is quite dependent upon the application. SQL is designed to recover nicely in either environment, and it is likely not to lose any data. Sequential writing applications will be dependent upon things
like disk cache held in memory - large caches means higher probability of losing data. No disk cache means there is not likely to be any loss of data.
.:|:.:|:. tim

Windows server 2012 Datacenter Hyper-V Cluster -- Failed to validate Operating System Installation Option?

Hi I have a 4 node Windows server 2012 Hyper-V cluster. When I try to run a cluster validation report, everything else is fine but it fails at validate the Operating System Installation Option step. I did some research but couldn't really find any solution.
Anyone knows how to pass this test? Thanks.
Here's the error I get when run the test:
An error occurred while executing the test.
The operation has failed. An error occurred while getting the operating system installation option for node "server1"

Hi JasonLiu2002,
Please post the original error information, the current information is so wide that difficult to determine where may have issue and please offer more information about your
server configuration, you can refer the following article to prepare your cluster environment first.
Windows Server 2012 Hyper-V Best Practices (In Easy Checklist Form)
http://blogs.technet.com/b/askpfeplat/archive/2013/03/10/windows-server-2012-hyper-v-best-practices-in-easy-checklist-form.aspx
When you preparing the new cluster on Server 2012 please install the Recommended hotfixes and updates for Windows Server 2012-based failover clusters updates.
http://support.microsoft.com/kb/2784261
I’m glad to be of help to you!
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Hyper-V Cluster in VMM

I am trying to build a Hyper-V cluster with VMM 2012 R2 but require some advice as it is not working how I want it too.
I have 2 Hyper-V servers, both with their own local storage and 1 iSCSI disk shared between them. I am trying to cluster the servers so that the shared iSCSI disk becomes a shared volume while maintaining the ability to use the local storage as well - some
VMs will run from local storage while others will run from the CSV.
The issue I'm having is that when I cluster the 2 servers the iSCSI disk does not show up in VMM as a shared volume. In Windows Explorer the disk has the cluster icon but in VMM there is nothing. In the cluster properties I can add a shared volume... but
it asks for a logical node which I cannot create because I have no storage pools (server manager says no groups of disks are available to pool).
I also noticed when I clustered the servers my 2 file shares to their local storage disappeared from VMM which isn't what I want.
Can someone please advise, or link to, a way to achieve my desired configuration?
Cheers,
MrGoodBytes
Note: Posts are provided “AS IS” without warranty of any kind, either expressed or implied, including but not limited to the implied warranties of merchantability and/or fitness for a particular purpose.

Hi MrGoodBytes,
Hi,
Unfortunately, the available information is not enough to have a clear view of the occurred behavior. Could you provide more information about your environment. For example,
the server version of the problem on, when this problem occurs the system log record information, screenshots is the best information.
Before you create the cluster we strongly recommend you run the cluster validation, If you are considering the cluster may have some issue please rerun the validation, then
post the validation report warning and error part information, this report will quickly locate the cluster potential issue.
A disk witness is a disk in the cluster storage that is designated to hold a copy of the cluster configuration database. A failover cluster has a disk witness only if this
is specified as part of the quorum configuration.
Configure and Manage the Quorum in a Windows Server 2012 Failover Cluster
http://technet.microsoft.com/zh-cn/library/jj612870.aspx
I am not familiar with SVCMM so please refer the following related KB to confirm your shared storage add steps is correct.
How to Configure Storage on a Hyper-V Host Cluster in VMM
http://technet.microsoft.com/en-us/library/gg610692.aspx
Configuring Storage in VMM
http://technet.microsoft.com/en-us/library/gg610600.aspx
More information:
How to add storage to Clustered Shared Volumes in Windows Server 2012
http://blogs.msdn.com/b/clustering/archive/2012/04/06/10291490.aspx
Configure and Manage the Quorum in a Windows Server 2012 Failover Cluster
http://technet.microsoft.com/zh-cn/library/jj612870.aspx
Event Logs
http://technet.microsoft.com/en-us/library/cc722404.aspx
I’m glad to be of help to you!
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are trying to better understand customer views on social support experience, so your participation in this
interview project would be greatly appreciated if you have time.
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VDI virtualization servers: a separate cluster or a part of a common cluster?

We've bought a new storage system, and I'm in process of rebuilding our Hyper-V virtualization farm. I intend to create a highly available solution based on Hyper-V (Windows Server 2012 R2) clustering technology.
We have only four servers connected to the storage system. I need at least three of them to create a robust cluster of server virtual machines. In addition, I need to deploy a pilot VDI farm for hosting at least 50 workstation VMs. They will need an
entire physical server.
The question is, should I deploy all four servers as a part of a single four-node Hyper-V cluster? Or should I deploy three servers in a three-node cluster for hosting server VMs and then create a single-node cluster for VDI (supposing that it will
be extended with new servers in the future)? The first design is much more robust, but it requires that I give full control over the SC VMM server to a person who manages that VDI installation. I don't want to do it due to security reasons.
Any ideas?
Evgeniy Lotosh
MSCE: Server infractructire, MCSE: Messaging

We've bought a new storage system, and I'm in process of rebuilding our Hyper-V virtualization farm. I intend to create a highly available solution based on Hyper-V (Windows Server 2012 R2) clustering technology.
We have only four servers connected to the storage system. I need at least three of them to create a robust cluster of server virtual machines. In addition, I need to deploy a pilot VDI farm for hosting at least 50 workstation VMs. They will need an
entire physical server.
The question is, should I deploy all four servers as a part of a single four-node Hyper-V cluster? Or should I deploy three servers in a three-node cluster for hosting server VMs and then create a single-node cluster for VDI (supposing that it will
be extended with new servers in the future)? The first design is much more robust, but it requires that I give full control over the SC VMM server to a person who manages that VDI installation. I don't want to do it due to security reasons.
Any ideas?
You can perfectly use your Hyper-V cluster just make sure you have properly configured storage as it's IOPS thing that makes or breaks the whole VDI config, modern CPUs have enough of a horsepower to handle virtually any workload and RAM is cheap these days.
Create a 4-node symmetric cluster and make sure you have under provisioned hosts so VDI VMs can move to the other one and it would stall on CPU.
StarWind VSAN [Virtual SAN] clusters Hyper-V without SAS, Fibre Channel, SMB 3.0 or iSCSI, uses Ethernet to mirror internally mounted SATA disks between hosts.

How to use Fibre Chanel matrifx for Hyper-V Cluster

Hi
I created Hyper-V Cluster (2012 R2) and have Fibre Chanel matrix (4 TB). Is it better co create one big lun for hiper-v storage or create two small luns (2 x 2 TB). Where will be better I/O? All disk used in matrix are the same.
Thank you for help
Kind Regards Tomasz

Hi Yukio,
I agree with Tim , the best way is to contact with hardware vendor for the disk construction of FC storage .
Based on my understanding , if these "basic disks" are same and controlled by same controller , I think it will not create any I/O when you divide it , the total amount of I/O is equal .
Best Regards
Elton Ji
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interview project would be greatly appreciated if you have time.
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SBO Mailer in a cluster environment

Hi,
I am currently facing an issue where when I install SBO Mailer on a cluster environment, the installation removes applications and license manager for some reason gets uninstalled.. When I want to uninstall the SBO Mailer, I do not see it under the Control Panel and neither do I see it in running in services. But if i look at the Service Manager the SBO Mailer Service is running.
The strange part is that after this installation, there is an add-on that stopped working.
Has anyone come across such a scenario?

Hi,
To uninstall you have to first run the Server tools and there you can uncheck the sbo mailer. There is not way you can uninstall SBO mailer service and you cannot find it under control panel its a service...not an applicaiton.
Run the server tools and then choose repair.
Regards,
Rakesh N

Deploying Java Web Application (WAR-File) into a cluster environment

Hi,
we have a web application which has to read from and write to the file system.
Since a short time we have a cluster environment (2 parallel servers) and since thisa time we have the problem, that files are worked double in the cluster. The application is working on both servers now and so we have this problem.
Does anybody know how we have to deploy the application correctly in a cluster environment or do we have to change anything in our source code of the application?
I didn't find any documentation about this.
At the moment we have deployed the application on one of the two servers only, but I think there must be a better way to solve this problem.
Thanks for your replies.
Regards
Thorsten

Hi,
I think first you need to wrap it into an EAR file, then you can deploy it.
As far as I know standalone deployment of WAR is deprecated as of 640.
similar threads:
How to deploy .war on NWDI
Deploying an existing WAR file into the Portal
Hopefully this tutorial also gives some idea:
http://help.sap.com/saphelp_nw70ehp1/helpdata/en/70/13353094af154a91cbe982d7dd0118/frameset.htm
Regards,
Ervin

PI 7.1 in a cluster environment (multiple ip-adresses): P4 port

We want to install PI 7.1 on unix in a cluster environment.Therefore we installed also DEV+QA with virtual hostnames like the prodsystem, which will be later installed.
At all sapinst installation screens we have used only the virtual hostname <virtual-hostname-server interface>.We have also set the SAPINST_USE_HOSTNAME=<virtual-hostname-server interface>. Although the P4-port seems to have used the physical hostname: in step 57 of sapinst we got problems and in dev_icm were:
[Thr 05] *** ERROR => client with this banner already exists:
1:<physical-hostname>:35644 {000306f5} [p4_plg_mt.c 2495]
After we have set
icm/server_port_1 = PROT=P4,PORT=5$$04, HOST=<virtual-hostname-server interface>
icm/server_port_6 = PROT=P4,PORT=5$$04, HOST=<virtual-hostname-user interface>
icm/server_port_7 = PROT=P4,PORT=5$$04, HOST=<physical hostname>
icm/server_port_8 = PROT=P4,PORT=5$$04, HOST=127.0.0.1
the sapinst was successfull.
Now we're not sure how to set these P4-parameters in our future productive cluster environment.
Our productive system PX1 will live in a HA environment, so we don't want to use the physical hostnames in any profile.
Our environment will look like:
HOST-A (<physical-hostname-A>):
<virtual-hostname-server interface>
<virtual-hostname-user interface>
HOST-B (<physical-hostname-B>):
Normally our prodsystem will live on Host-A (physical-hostname-A). All parameters should
only take the virtual hostname <virtual-hostname-server-interface>. During switchover the
virtual hostnames (server and user interface) will be taken over to HOST-B, while the physical
hostnames of HOST-A and HOST-B will stay like there are.
How do the parameters have to be set here ?
Have also the physical hostnames of both cluster nodes set in the
instance profile, e.g:
icm/server_port_1 = PROT=P4,PORT=5$$04, HOST=<virtual-hostname-server interface>
icm/server_port_6 = PROT=P4,PORT=5$$04, HOST=<virtual-hostname-user interface>
icm/server_port_7 = PROT=P4,PORT=5$$04, HOST=<physical-hostname-A>
icm/server_port_8 = PROT=P4,PORT=5$$04, HOST=<physical-hostname-B>
icm/server_port_9 = PROT=P4,PORT=5$$04, HOST=<localhost>
Any recommendations ? In note 1158626 is some infomation regarding P4 ports with multiple network interfaces, but it's not 100% clear for us.
Best regards,
Uta

Hi Uta!
Obviously we are the only human beings in the SAP community having this problem. Nevertheless let's give it another try with a - hopefully - more simple problem description (and maybe it will be helpful to copy and paste this description into the open SAP CSN also).
So here comes the scenario:
We have one physical host:
Physical hostname: physhost
Physical IP address: 1.1.1.1
On this physical host there is running one OS: SUN Solaris 10/SPARC
On top of this we have two virtual hosts where we install 2 completely independent PI 7.1 instances with separate virtual hostnames and separate virtual IP addresses and separate DB2 9.1 databases. That is this is not an MCOD installation.
Virtual Host no. 1 is PI 7.1 Development System:
Virtual hostname: virthostdev
Virtual IP address: 2.2.2.2
Java Port numbers: 512xx
Virtual Host no. 2 is PI 7.1 QA System:
Virtual hostname: virthostqa
Virtual IP address: 3.3.3.3
Java Port numbers: 522xx
With this constellation we face serious problems with the P4 port. Currently for example the JSPM for virthostdev does not start, because JSPM cannot connect to the P4 port.
In SAP note 1158626 we have learned that by default always the physical hostname/IP address is used to address the P4 port and that we have to configure instance profile parameter icm/server_port_xx to avoid this.
So how do we have to configure the instance profile parameter icm/server_port_xx for both systems to resolve these P4 port conflicts?
Additionally: Is it important to use distinct server port slot numbers xx in both systems?
Additionally: Is it possible to configure this parameter with hostnames instead of using IP addresses?
So far we have tried several combinations, but with each combination at least one or even both systems have problems with that f.... P4 port.
Please help! Thanx a lot in advance!
Regards,
Volker

Steps to upgrade kernel patch in AIX cluster environment

Hello All,
We are going to perform kernel upgrade in AIX cluster environment.
Please let me know the other locations to copy the new kernel files ,
default location
CI+DB server
APP1
Regards
Subbu

Hi Subbu
Refer the SAP link
Executing the saproot.sh Script - Java Support Package Manager (OBSOLETE) - SAP Library
1. Extract the downloaded files to a new location using SAPCAR -xvf <file_name> as sidadm.
2. copy the extracted files to sapmnt/<SID>/exe
3. Start the DB & Application.
Regards
Sriram

Hyper-V cluster: Unable to fail VM over to secondary host

I am working on a Server 2012 Hyper-V Cluster. I am unable to fail my VMs from one node to the other using either LIVE or Quick migration.
A force shutdown of VMHost01 will force a migration to VMHost02. And once we are on VMHost02 we can migrate back to VMHost01, but once that is done we can't move the VMs back to VMHost02 without a force shutdown.
The following error pops up:
Event ID: 21502 The Virtual Machine Management Service failed to establish a connection for a Virtual machine migration with host.... The connection attempt failed because the connected party did not properly respond after a period of time, or the established
connection failed because connected host has failed to respond (0X8007274C)
Here's what I noticed:
VMMS.exe is running on VMHost02 however it is not listening on Port 6600. Confirmed this after a reboot by running netstat -a. We have tried setting this service to a delayed start.
I have checked Firewall rules and Anti-Virus exclusions, and they are correct. I have not run the cluster validation test yet, because I'll need to schedule a period of downtime to do so.
We can start/stop the VMMS.exe service just fine and without errors, but I am puzzled as to why it will not listen on Port 6600 anywhere. Anyone have any suggestions on how to troubleshoot this particular issue?
Thanks,
Tho H. Le

Just ran into the same issue in a 16-node cluster being managed by VMM. When trying to live migrate VMs using the VMM console the migration would fail with the following: Error 10698. Failover Cluster manager would report the following error code: Error
(0x8007274C).
+ Validated Live Migration and Cluster networks. Everything checked out.
+ Looking in Hyper-V manager and migrations are enabled and correct networks displayed.
+ Found this particular Blog that mentions that the Virtual Machine Management service is not listening to port 6600
http://blogs.technet.com/b/roplatforms/archive/2012/10/16/shared-nothing-migration-fails-0x8007274c.aspx
Ran the following from an elivated command line:
Netstat -ano | findstr 6600
Node 2 did not return anything
Node 1 returned correct output:
TCP
10.xxx.251.xxx:6600
0.0.0.0:0
LISTENING
4540
TCP
10.xxx.252.xxx:6600
0.0.0.0:0
LISTENING
4560
Set Hyper-V Virtual Machine Service to delayed start.
Restarted the service; no change.
Checked the Event Logs for Hyper-V VMMS and noted the following events - VMMS Listener started
for Live Migration networks, and then shortly after listener stopped.
Removed the system from the cluster and restarted - No change
Checked this host by running gpedit.msc - could not open console: Permission Error
Tried to run a GPO refresh (gpupdate /force), but error returned that LocalGPO could not apply registry settings. Group Policy
processing would not continue until this was resolved.
Checked the local group policy folder on node 2 and it was corrupt:
C:\Windows\System32\GroupPolicy\Machine\reg.pol showed 0K for the size.
Copied local policy folders from Node 1 to 2, and then was able to refresh the GPOs.
Restarting the VMMS service did not change the status of the ports.
Restarted Server, added Live Migration networks back into Hyper-V manager and now netstat output reports that VMMS service
is listening on 6600.

SAP R/3 4.7 SR1 Migration to MSCS cluster environment

Hi all,
We are planning to move our existing standalone server R/3 production server to cluster environment.
I have some queries regarding this migration
Our R/3 system is running on SAP R/3 4.7x1.10 SR1 on Windows 2003 and Oracle 9.2
1. Central Instance has to be installed in local disk or shared disk
2. Is it correct to R3load procedures to export data from old server and import during Database installation
3. Presently our server is running with kernel 640, but for the new installation kernel will be 620. So when can i upgrade kernel immediately after central instance installation or after CI and DB Instance installation.
Give me some inputs
Thanks & Regards
KT

Hi, the best place for your questions would have been the forum SAP on Windows.
However, here the answers.
1) CI must be on a shared disk
2) Right, if you don't change the database platform and its release you can also use backup/restore
3) Right. You can also perform the installation with the latest NW04 installation master

Cluster Quorum Disk failing inside Guest cluster VMs in Hyper-V Cluster using Virtual Disk Sharing Windows Server 2012 R2

Hi, I'm having a problem in a VM Guest cluster using Windows Server 2012 R2 and virtual disk sharing enabled.
It's a SQL 2012 cluster, which has around 10 vhdx disks shared this way. all the VHDX files are inside LUNs on a SAN. These LUNs are presented to all clustered members of the Windows Server 2012 R2 Hyper-V cluster, via Cluster Shared Volumes.
Yesterday happened a very strange problem, both the Quorum Disk and the DTC disks got the information completetly erased. The vhdx disks themselves where there, but the info inside was gone.
The SQL admin had to recreated both disks, but now we don't know if this issue was related to the virtualization platform or another event inside the cluster itself.
Right now I'm seen this errors on one of the VM Guest:
Log Name: System
Source: Microsoft-Windows-FailoverClustering
Date: 3/4/2014 11:54:55 AM
Event ID: 1069
Task Category: Resource Control Manager
Level: Error
Keywords:
User: SYSTEM
Computer: ServerDB02.domain.com
Description:
Cluster resource 'Quorum-HDD' of type 'Physical Disk' in clustered role 'Cluster Group' failed.
Based on the failure policies for the resource and role, the cluster service may try to bring the resource online on this node or move the group to another node of the cluster and then restart it. Check the resource and group state using Failover Cluster
Manager or the Get-ClusterResource Windows PowerShell cmdlet.
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider Name="Microsoft-Windows-FailoverClustering" Guid="{BAF908EA-3421-4CA9-9B84-6689B8C6F85F}" />
<EventID>1069</EventID>
<Version>1</Version>
<Level>2</Level>
<Task>3</Task>
<Opcode>0</Opcode>
<Keywords>0x8000000000000000</Keywords>
<TimeCreated SystemTime="2014-03-04T17:54:55.498842300Z" />
<EventRecordID>14140</EventRecordID>
<Correlation />
<Execution ProcessID="1684" ThreadID="2180" />
<Channel>System</Channel>
<Computer>ServerDB02.domain.com</Computer>
<Security UserID="S-1-5-18" />
</System>
<EventData>
<Data Name="ResourceName">Quorum-HDD</Data>
<Data Name="ResourceGroup">Cluster Group</Data>
<Data Name="ResTypeDll">Physical Disk</Data>
</EventData>
</Event>
Log Name: System
Source: Microsoft-Windows-FailoverClustering
Date: 3/4/2014 11:54:55 AM
Event ID: 1558
Task Category: Quorum Manager
Level: Warning
Keywords:
User: SYSTEM
Computer: ServerDB02.domain.com
Description:
The cluster service detected a problem with the witness resource. The witness resource will be failed over to another node within the cluster in an attempt to reestablish access to cluster configuration data.
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider Name="Microsoft-Windows-FailoverClustering" Guid="{BAF908EA-3421-4CA9-9B84-6689B8C6F85F}" />
<EventID>1558</EventID>
<Version>0</Version>
<Level>3</Level>
<Task>42</Task>
<Opcode>0</Opcode>
<Keywords>0x8000000000000000</Keywords>
<TimeCreated SystemTime="2014-03-04T17:54:55.498842300Z" />
<EventRecordID>14139</EventRecordID>
<Correlation />
<Execution ProcessID="1684" ThreadID="2180" />
<Channel>System</Channel>
<Computer>ServerDB02.domain.com</Computer>
<Security UserID="S-1-5-18" />
</System>
<EventData>
<Data Name="NodeName">ServerDB02</Data>
</EventData>
</Event>
We don't know if this can happen again, what if this happens on disk with data?! We don't know if this is related to the virtual disk sharing technology or anything related to virtualization, but I'm asking here to find out if it is a possibility.
Any ideas are appreciated.
Thanks.
Eduardo Rojas

Hi,
Please refer to the following link:
http://blogs.technet.com/b/keithmayer/archive/2013/03/21/virtual-machine-guest-clustering-with-windows-server-2012-become-a-virtualization-expert-in-20-days-part-14-of-20.aspx#.Ux172HnxtNA
Best Regards,
Vincent Wu
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OSB Polling in Cluster Environiment

Hi ,
I created a OSB Poller which will read data from DB. When I test it in a single server it is working fine but when I move it to cluster environment with two managed servers it is polling Twice from the DB and the reports are generating twice . I have changed the JCA Property <Lock>lock-no-wait</Lock> even then it is polling twice. Any solution Please ?

Hi:
Maybe this link can be useful
http://javaoraclesoa.blogspot.com.au/2012/04/polling-with-dbadapter-in-clustered.html
Regards,
RK
Edited by: RK.. on Dec 16, 2012 7:54 PM
Edited by: RK.. on Dec 16, 2012 7:55 PM

How to setup the cluster environment for BPM using weblogic

want to setup the cluster environment for BPM using weblogic....
i have installed the oracle weblogic server 10gr3 and oracle BPM enterprise for weblogic 10gR3
i have used the Admin tools from the "oracle BPM enterprise for weblogic" to setup the configuration and create the weblogic domain servers.
i can launch the process administrator and import the project exp file to domain server.
but what should i do to setup cluster environment using weblogic?
what i want to do is :
setup one admin machine..
setup two product machine..
enable the cluster so the admin machine can monitor the status of the product machine..
thanks a lot ...

The install guide at http://download-llnw.oracle.com/docs/cd/E13154_01/bpm/docs65/config_guide/index.html gives a reasonable amount of info on how to do this.
Personally I have not used the OBPM option to configure WebLogic instead I've used the information in the above install guide to create the weblogic domain in advance of configuring OBPM.
Once you've setup WebLogic configure OBPM using the values I mention in the following thread: How to set the JMX Engine parameter in Process Administation?
Let me know any specific config questions and I'll do my best to answer them for you.
Thanks,
Mike

VDI in a Hyper V3 cluster environment

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