Cluster vs Always On

Dear All...................I have a two-2 node sql server 2012 sp1 failover cluster.........I need to turn "Always On" on one of the databases.
1. Is it really applicable in this scenario?
2. Would I get any benefit from it?
3. Is it even possible?
thank in advance.

Raju is correct. Just to add… AlwaysOn is an term which covers two features Failover Cluster Instances (AlwaysOn FCI) and Availability Group (AlwaysOn AG). For both the features you need to have Windows Server Failover Cluster (WSFC) feature.
If you compare FCI and AG, below are the differences.
For FCI, you need to have shared storage between nodes and at a given point of time, one SQL Instance would run on one of the node. In AG, there is no requirement of shared storage. You can have standalone instances on each nodes and configure AG between
them. Note that AG can also be configured between FCI and standalone instances (with some limitations)
AG can be used SQL Server 2012 onwards whereas FCI was available in earlier versions as well.
AG is database level feature whereas FCI is for whole instance of SQL Server.
Balmukund Lakhani
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Deploy jw webservice to cluster server, always point to 9081

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i tried generate webservice by axis it works fine. i gooled, couldn't find solution. thx.

Thanks for looking into it. Clean cache doesn't work for me. Since it works fine for you. I think the issue might related to create/deploy ear file. i don't have cluster setup on my local, so i created ear file and deployed to our DEV(unix) server thru admin console. the web-uri in application.xml generated by the jwsc contains the path examples/webservices/hello_world/HelloWorldImpl.war, instead of HelloWorldImpl.war. i have to manually updated the uri, otherwise i got "not be able to identifiy application path ......war" during install. Since Axis works fine cluster config should be ok. Do you mind share how you config the cluster and how to generate the ear file? this are the two possible places i can think of. i also tried set FrontEnd HTTP Port for each server, still didn't work.
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One of AD RMS cluster servers always asks for credential

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Hi Ahmed-Mahmoud,
Please try to populate the IE local intranet sites with the appropriate URLs, credentials not automatically sent to RMS unless cluster/server names are in the IE Local Intranet
sites.
Active Directory RMS Stop entering user's credential when opening files
https://social.technet.microsoft.com/Forums/en-US/2af38d78-bc2f-4882-ab4f-b155f08c30c1/active-directory-rms-stop-entering-users-credential-when-opening-files?forum=rms
I’m glad to be of help to you!
Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Support, contact [email protected]

Sql cluster with Always on

Hi
I have 2 sites Ho & DR
I have 2 sql servers in each site
I need to make on each site sql cluster and between the 2 sites we need to make always on
please need the steps for this scenario
MCP MCSA MCSE MCT MCTS CCNA

Hi Yasser,
According to your description, you want to setup a disaster recovery solution combining SQL Server Failover Cluster in Primary Datacenter and Availability Group on a SQL Server Failover Cluster in Secondary Datacenter. Assume that, in the Primary DataCenter,
SQL_PV is the FCI instance and CLP_1 and CLP_2 are the two nodes. In the Secondary DataCenter, SQL_SV is the FCI instance and CLS_1 and CLS_2 are the two nodes as the screenshot below shows.
To achieve the goal, you could follow the steps below:
1.Add two nodes CLS_1 and CLS_2 from secondary datacenter into the existing
Windows Server Failover Cluster(WSFC). Please note that all nodes for an availability group must exist on a single WSFC within the same Active Directory domain, even between datacenters.
2.Configure Shared Storage for both CLS_1 and CLS_2 nodes.
3.Install FCI instance of SQL 2012 Enterprise edition using "New SQL Server Failover Cluster Installation" and join the other secondary node using Add node to a SQL Server failover Cluster.
4.Enable Always on Availability Group on newly installed FCI.
5.Define the possible owner for each SQL Server FCI as the following:
a. Go to "SQL Server" services on the Cluster instance under SQL_PV group and go to SQL Properties. Under Advanced Policies, choose only CLP_1 and CLP_2 as possible owner for SQL_PV.
b. Go to "SQL Server" services on the Cluster instance under SQL_SV group and go to SQL Properties. Under Advanced Policies, choose only CLS_1 and CLS_2 as possible owner for SQL_SV.
For more information about the process, please refer to Scenario 2 in the article:
http://www.mssqltips.com/sqlservertip/3150/adding-sql-server-alwayson-availability-groups-to-existing-failover-clusters/
Regards,
Michelle Li
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Failover Cluster Instance always on

we have two node cluster active passive with shared storage , I have setup AlwaysOn as DR on standalone instance
daily morning on failover cluster events, i am getting following critical events
On windows log i couldn't see much information, please help me

Can you provide the version of Windows Server that you are using as cluster nodes? Behavior will be different between Windows Server 2008, 2012 and 2012 R2. While in the past, changing the NodeWeight property of a cluster node may be an appropriate solution,
Windows Server 2012 R2 introduced dynamic witness where a witness is configured to either have a vote or not have a vote depending on the state of the cluster and the quorum. Combined with dynamic quorum (which was introduced in Windows Server 2012,) which
dynamically adds or removes a vote from a node depending on the status, the behavior will be different depending on what version of Windows Server you are running. A more appropriate approach (if you are running Windows Server 2012 or 2012 R2) is to configure
the LowerQuorumPriorityNodeID property of the cluster.
http://technet.microsoft.com/en-ca/library/dn265972.aspx
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SecurityException when deploying to a cluster.Please help !

Hi Guys,
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          at weblogic.ejb20.deployer.MBeanDeploymentInfoImpl.initializeRunAsSettings(MBeanDeploymentInfoImpl.java:838)
          at weblogic.ejb20.deployer.MBeanDeploymentInfoImpl.<init>(MBeanDeploymentInfoImpl.java:246)
          at weblogic.ejb20.deployer.EJBDeployer.prepare(EJBDeployer.java:1262)
          at weblogic.ejb20.deployer.EJBModule.prepare(EJBModule.java:477)
          at weblogic.j2ee.J2EEApplicationContainer.prepareModule(J2EEApplicationContainer.java:2962)
          at weblogic.j2ee.J2EEApplicationContainer.prepareModules(J2EEApplicationContainer.java:1534)
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          at weblogic.j2ee.J2EEApplicationContainer.prepare(J2EEApplicationContainer.java:1031)
          at weblogic.management.deploy.slave.SlaveDeployer$ComponentActivateTask.prepareContainer(SlaveDeployer.java:2602)
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Can you post the config.xml from both boxes ?
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Question about cluster node NodeWeight property

Hi,
I have a three nodes (A/B/C) windows 2008 r2 sp1 cluster testCluster, and installed KB2494036 for three nodes,suppose Node A is a active node.
I configured node C's NodeWeight property to 0, and node A and node B keep default (NodeWeight=1). I also added a shared disk Q for cluster quorum.
So i want to know if node C and Node B are down , is the windows cluster testCluster down as lost of quorum or keep up?
At the first i thought testCluster should keep up , because the cluster has 2 votes (node A and quorum), node B is down, node C doesn't join voting. But after testing, testCluster was down as lost of quorum.
So anybody konw the reason,thanks.

Hello mark.gao,
Let me see if I understand correctly your steps, so I can think that if you create your cluster with three nodes at the beginning your quorum model should be "Node Majority", then you have three votes one per each node.
Then was removed the vote for Node "C" and added a disk to be witness for cluster quorum, at this point we have two out of three votes from the original configuration on "Node Majority"
Question:
At some point you changed the quorum model to be "Node and Disk Majority"???
Maybe this is the issue, you are stuck on "Node Majority" and when "B" and "C" nodes are down we have only one vote from node "A" therefore there is no quorum to keep the service online.
On 2012 we have the awesome option to configure a Dynamic Quorum:
Dynamic quorum management
In Windows Server 2012, as an advanced quorum configuration option, you can choose to enable dynamic quorum management by cluster. When this option is enabled, the cluster dynamically manages
the vote assignment to nodes, based on the state of each node. Votes are automatically removed from nodes that leave active cluster membership, and a vote is automatically assigned when a node rejoins the cluster. By default, dynamic quorum management is enabled.
Note
With dynamic quorum management, the cluster quorum majority is determined by the set of nodes that are active members of the cluster at any time. This is an important distinction from the cluster quorum in Windows Server 2008 R2, where the quorum
majority is fixed, based on the initial cluster configuration.
With dynamic quorum management, it is also possible for a cluster to run on the last surviving cluster node. By dynamically adjusting the quorum majority requirement, the cluster can sustain
sequential node shutdowns to a single node.
The cluster-assigned dynamic vote of a node can be verified with the DynamicWeight common property of the cluster node by using the Get-ClusterNodeWindows
PowerShell cmdlet. A value of 0 indicates that the node does not have a quorum vote. A value of 1 indicates that the node has a quorum vote.
The vote assignment for all cluster nodes can be verified by using the Validate Cluster Quorum validation test.
Additional considerations
Dynamic quorum management does not allow the cluster to sustain a simultaneous failure of a majority of voting members. To continue running, the cluster must always have a quorum majority at the time of a node shutdown or failure.
If you have explicitly removed the vote of a node, the cluster cannot dynamically add or remove that vote.
Configure and Manage the Quorum in a Windows Server 2012 Failover Cluster
https://technet.microsoft.com/en-us/library/jj612870.aspx#BKMK_dynamic
Hope this info help you to reach your goal. :D
5ALU2 !

Witness Server in a failover cluster

Hi.
I was reading about this witness server in a failover cluster but always thought that the switch between active and passive would be automatic, never thought of a "vote" and a "quorum" to reach.
Under what circumstances do I need this quorum (and therefore a witness server) and what happens if I am even?
Does a witness server have necessarily to be a third one or can be set up as either the active or the passive one?
Cheers

Hi,
In addition to Jared's suggestion, I would like to clarify the following things:
1. The witness server and its directory are used only for quorum purposes where there's an even number of members in the DAG.
2. The witness server should be in the same Active Directory forest as the DAG.
3. It is recommended to specify a Client Access server as the witness server for Exchange 2013 DAG.
Hope my clarification is helpful.
If there are any problems, please feel free to let me know.
Best regards,
Amy
Amy Wang
TechNet Community Support

CUC 10.0.1 cluster status stuck in Split Brain Recovery (SBR) on Primary server - HA reports fine.

Hi,
Have a 10.01.11900 CUC cluster and everything is working fine (no one having issues with voice mail, etc) but the cluster status reports is not consistent.
DBreplication is showing 2 on both servers.
Primary unity server cluster status shows Primary/split brain recovery.
HA Unity server cluster status shows Primary/Secondary.
utils diagnose test - everything tests fine except the tomcat_connectors test.
test - tomcat_connectors : Failed - The HTTPS port is not responding to local requests. Please collect all of the Tomcat logs for root cause analysis: file get activelog tomcat/logs/*
We've shutdown the HA server and rebooted primary, and then waited awhile after primary was back up/active before bringing the HA server back up and still same.
We reset DB replication and same.
On the HA server I made the HA primary and the cluster status flipped to Seconday/Primary and I then made primary the primary again, but the primary server cluster status always shows Split Brain Recovery for the secondary/HA server.
No core dumps on either server and all services are started.
Any one seen this before or have any thoughts? I have a TAC Case on this but so far in same boat.
Would the utils cuc cluster renegotiate command help? Did not replace a server so don't really want to overwrite data to publisher server. Issue seems to be with the publisher since HA shows fine but not sure. I don't want to lose messages/etc so don't want really want to run these commands.
Thanks.

Ok, thanks.
The SRM logs indicate the Connection Digital Networking Replication Agent service is not running, however when I start it it stops right away and the cuReplicator log states digital networking is not enabled.
From SRM Log:
23:47:20.100 |17755,,,SRM,7,<svcmon> checkServiceStatus: started service monitoring
23:47:20.100 |17755,,,SRM,7,<svcmon> Service Status: 1 service(s) not running. Service name(s):
23:47:20.100 |17755,,,SRM,7,<svcmon> Connection Digital Networking Replication Agent
23:47:24.674 |28471,,,SRM,11,<Timer-3> [snd] Type: Heartbeat
From Replicator log:
admin:file tail activelog cuc/diag_CuReplicator_00000049.uc
23:42:59.208 HDR|09/14/2014 ,Significant
23:42:59.208 |28914,,,CuReplicator,0,Digital Networking is not enabled. Replicator will stop now.
There is no digital networking setup to other unity systems, and only one location.
Also, the Server role manager can't be restarted from CLI or the GUI so either root or a server reboot.
I compared it to another CUC cluster and deactivated the Digital Networking service and the SRM logs seem happier now, will wait a bit and see if it clears the SBR status up.

Load and save a cluster

I have a cluster of data that indicates tests failed. At the beginning of the main VI, I want to check if the file exists, if not create it, and if it does, read it. This file will be my saved cluster, indicating the tests that have previously failed.
I am using open/create/replace datalog and am having a problem with the cluster elements always becoming zero.
I also am trying to save the cluster to the file, every time a test fails. This does not seem to work either.
Is datalog sub vis the easiest thing to use here? Should I be using something other than a cluster?
Thanks
metzler CLAD
Solved!
Go to Solution.
Attachments:
loading cluster.vi ‏18 KB
save cluster.vi ‏12 KB

I was planning on the load vi to create the file, if the folder vi created the folder, the file does not exist and the no error case structure should run, and create the file,
You wrote:     "But there is a problem with your logic. Why do you call it an error if the folder exists? When loading, you would hope that the folder does exist. So your error cases are backwards."
I'm sorry, I omitted the create folder from the vi, the error of which is connected to the loading cluster vi error out terminal (revised attached). If the folder does not exist, there is no error, the folder is created, the no error case structure will then create the history.dat file, and insert the cluster with all zeros.
You wrote: "In your save vi, you have to set the operation input to open/create/replace to "replace or create". The first time you write, the datalog will be created and the data will be written."
I was planning on the load cluster vi (no errror case) to create the file.   I then wanted the cluster to be created and written to the file.
I tried using the save cluster vi to create or replace the cluster, and it worked like you said. I then loaded the cluster, but my path was wrong. After that was fixed, it worked.
Thanks for your help.
metzler CLAD
Attachments:
working loading cluster.vi ‏17 KB

Cluster 2008 R2

We are receiving cluster failure always with the below error..please let me know the solution to this
These servers are virtual and cluster configured.
Cluster IP address resource 'IP Address 10.x.x.x cannot be brought online because a duplicate IP address '10.1x.x.x' was detected on the network. Please ensure all IP addresses are unique.

Ping the IP address in question to see if it is live. Perform an nslookup on it to try and obtain the host name and ultimately located where the registration is.
Ensure your cluster resource does indeed have a unique IP. Ensure that any DHCP scopes exclude these IPs from their range (if they fall within the ranges - which is usually better to avoid).
Regards,
Mark Broadbent
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Turning off case-sensitive mode in a cluster?

I just set up a cluster and installed a web application that was running on a non-clustered
machine. When I started to run the application I noticed file references to JSPs
were case sensitive. The setting during deployment of the web application to ignore
case does not seem to work in a clustered environment. Does anybody know how to
turn this off in a cluster?
-Rich

I am using weblogic 6.1 on windows 2000. When the web application is running in
a non cluster environment, it runs in the case-insensitive mode. The toggle switch
in the admin console allows the mode to change to case-sensitive.
How ever, when I deploy the web app into a cluster, it always runs in case-sensitive
mode. The setting in the admin console for the web app is ignored. How can I run
the web app in a cluster in case-insensitive mode?
Any thoughts?
=?iso-8859-1?Q?Jean=2DFran=E7ois?= Gervais <[email protected]> wrote:
Hi Rich
Filenames are case-sensitive only on UNIX, and not case-sensitive on
Win/NT.
In WLS5.1 exists a property for the case sensitivity of the jsp' extension
files.
weblogic.httpd.servlet.extensionCaseSensitive
In WLS6.1, you can configure the same property in the console (configuration/files
tab of the
webApp).
Hope this help.
JFG
rich wrote:
I just set up a cluster and installed a web application that was runningon a non-clustered
machine. When I started to run the application I noticed file referencesto JSPs
were case sensitive. The setting during deployment of the web applicationto ignore
case does not seem to work in a clustered environment. Does anybodyknow how to
turn this off in a cluster?
-Rich

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Hello,
We would like to set up a test Sun Cluster Environment on one system using containers.
Has any one done this ? Is there documentation in the sun community on how to do this ?
Thank you
Bradley Duncan
Application Support
City University of New York

You can not install/configure a cluster just between non-global zones on the same physical node. The cluster software always needs to be installed in the global zone.
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A good start if your purpose is just to have a learning/development/experiment environment.
Regards
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hi,
When setting up backups for a uccx cluster, do you point both servers to the same shared folder or can you point them to different folders.When the backup runs on the master, does it backup the slave as well or does the slave run its own backup?
Thanks
John

Hi
The cluster is always backed up in it's entirety to a single folder. There's really only a small amount of stuff that is node-specific on a HA cluster anyway...
The actual implementation of it varies a little depending on which version of CCX you have.
Dark Ages (pre 5) you would install BARS target on one CCX server in the cluster, and BARS server on the CallManager (typically). Then UCCX and CCM would end up in one big .tar. Otherwise you could have a seperate BARS server to split them out.
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Is Distributed Transaction Coordinator services of the application role are required by SQL Server 2012 for clustering and support of SharePoint 2013.

All I want to know is if Distributed Transaction Coordinator services of the application role are required by SQL Server 2012 for clustering and support of SharePoint 2013.
I have been planning and deploying my companies first Windows Server 2012/SQL Server 2012 Always On cluster and Always On Availability Groups Multi-Subnet cluster and instances for SharePoint 2013, and I will be brutally honest, the documentation on either
the MSDN and TechNet leave alot to be desired. Continually finding links in the documentation will take me from a Windows 2012 reference to a page talking about Windows Server 2008 or R2, The differences of which there are so many when it comes to configurations,
settings, roles, services when working with SQL Server 2012. I have been confused, frustrated, screaming mad, with all the misdirection in this documentation. The documentation takes me windows 2008 R2 which is different than 2012!
Tired and trying to pick myself up off the floor!
Greg
Gman

In general, DTC is not required for SQL 2012. But, since you are asking specifically about SharePoint, it would be better to ask in a SharePoint forum. They would be more likely to know those situations where FTC might be needed by SharePoint.
.:|:.:|:. tim

Cluster vs Always On

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