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Creating Cluster over existing infrastructure

July 4, 2014, 9:36 am
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Hello

Right now we have two servers: one server running Exchange, shared drives, Active Directory, other software (camera, etc.) and one running our ERP and MSSQL Database.

I just bought a new server. My goal is to make this server the one that will take over if any of the other two would fail and do it automatically and seamlessly. 

Can I do this by creating a new Failover Cluster on the new server, adding the existing services to it and migrating the data and then adding the existing servers to the cluster? If not, how can I do what I need to achieve?

The most important thing is I cannot have any downtime of any of the existing services on the two first servers.

Thank you!


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Cluster Aware Updating

July 15, 2014, 3:24 am
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I have 2 Storage Server 2012 boxes set up as a clustered file server. I have the Cluster Aware Updating role installed on both. When i run the wizard to install security updates, it seems to start OK, and displays 'A Self-Updating Run is being scheduled to take place immediately' in the log, then after a while it says 'The Update Run has been triggered, but it has not yet started and might take a long time or might fail. You can use Get-CauRun to monitor an Updating Run in porgress.'

It then displays 'Getting cluster information'. It stops there and doesnt actually install any of the updates.

If i actually run Get-CauRun in powershell it says 'Warning: No update Run is currently in progress on cluster'

Does anyone know what i'm doing wrong please?

Thank you,

Dan.

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how to convert CentOs running in VMware workstation 9, to .vhd or .vhdx to run it in HyperV 2012 R2

July 22, 2014, 12:41 am
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Hi there!
i've a CentOs running in VMware Workstation 9.0, and i want to convert it in .vhd or .vhdx file to run it in Microsoft HyperV 2012 R2.
i've used Disk2Vhd for windows OS, but i don't know what to use for this linux maxhine.

Let me know with your suggestions!

Regards!

Lasandro Lopez

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NLB problem

July 21, 2014, 6:03 pm
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Hi 

I have NLB between two virtual machines , they are hosted via Vcenter

Server A IP : 192.168.1.1

Server B IP: 192.168.1.2

VIP: 192.168.1.3

the mode is unicast and the affinity is single host 

if I ping server A or VIP is working fine , but if I ping Server B IP , it doesn't reply ! 

if server B goes down, it make the VIP goes down once the server is back up! , if Server A goes down , the VIP is not working also

no error in the application or system event log , and I see the event of moving the host to be active when one server is down , but it is not working actually !

plz advise as I don't have much experience in load balancing , the servers are hosting IIS , but the ports to load balanced are all ports 

Windows Server 2012 both

Regards,

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Testing Network failure with Windows Failover Cluster on Windows server 2012 R2

July 22, 2014, 11:45 pm
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Hi,

We have Windows fail over cluster with two Node (Node A & Node B) on Windows Server 2012 R2. Also i install SQL fail over on my cluster with SQL Server 2012 Enterprise. Quorum is disk based.

Node A : 10.1.1.146 (Assigned Vote : 1, Current Vote : 1)

Node B : 10.1.1.147  (Assigned Vote : 1, Current Vote : 1) 

Cluster : 10.1.1.150

SQL Instance : 10.1.1.151

 

We are testing Network failure from Node A (Active) . If we disable network on Node A, Cluster is try to Active Node B but it fails somehow.

If Node B is Active & we disable network on Node B, Fail over happen & Node A became Active. From both node manually fail-over is working fine.

Are we needs to changes something in configuration part ? Are we missing something ?


Ankur Kalavadia


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SQL Server 2012 setup failed with erro code 0x85940001 and messsage "Error while enabling Windows feature : NetFx3, Error Code : -2146498298 "

July 23, 2014, 2:49 am
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SQL Server 2012 setup failed during installation because of this error with error code "0x85940001" and message

"Error while enabling Windows feature : NetFx3, Error Code : -2146498298 , Please try enabling Windows feature : NetFx3 from Windows management tools and then run setup again. For more information on how to enable Windows features , see http://go.microsoft.com/fwlink/?linkid=227143"

We know this due to one of the feature in windows 2012R2 (NetFx3) was note enabled during the setup time. We were unable to cancel the setup and proceeded until end with following services "Database engine, Reporting services, Analysis services, Client tools, SQL Server Data Tools, Data Quality Services, SQL Server Replication,  Master Data Services" failed during setup.

If its a standalone server I have uninstalled all components restart server and reinstalled from first,

Can some experts help here us, since its a cluster server configuration ! what is the first action needed now and what are the septs to follow to set all right and install the SQL Cluster successsfully with same cluster name and shared drives, Thanks

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Mirrored Storage between two servers

July 22, 2014, 8:50 am
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Hello,

Is it possible to create redundant storage using two Windows 2012 r2 servers?  I've been looking all over and any HA options always reference having external shared storage presented to the cluster (I assume NAS/SAN).  I am also assuming that said posts expect that whatever tech is being used for shared storage deals with keeping that data fault tolerant (e.g., mirrored SAN) and the Windows cluster need not be aware of that happening in the background.

Due to lack of any storage hardware in my environment I was hoping there was a way to create a redundant file share/system between two Windows 2012 r2 servers at which point I could then create an iSCSI target to present a virtual drive to an application server cluster.  That way if one of the "storage servers" fails it won't take down the application running on the app server.  I looked into DFS however since the app locks its files those won't replicate across.

I hope my question wasn't too convoluted.

Thanks for any guidance! 


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Gentoo Linux and Microsoft Failover Clusters / Hyper-V

July 23, 2014, 9:44 am
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Hello,

Hoping there are a few people on the boards familiar with running Gentoo Linux guests under Microsoft FailOver Cluster / Hyper-V hosts.

I have four Gentoo Linux guest VMs (running kernel 3.12.21-r1) running under the Microsoft Failover Cluster system with Hyper-V as the host. All of the Hyper-V drivers are built into the kernel (including the utilities and balloon drivers) and generally they run without issue.

For several months now, however, I have been having strange issues with them. Essentially they stop responding to network requests after random intervals. However, these intervals aren't a few minutes or hours from each other; more like days or even weeks before one of them will stop responding on the network side.

The funny thing is that the VMs themselves on the console side still responds. However, if I issue a reboot command on the externally non-responsive VM, the system will eventually get to a stage where all of the services are stopped and then hangs right after the "mounting remaining system ro" line (or something like that).

The Failover Cluster Manager then reports that the system is "Stopping" but the system never reboots.

I have to completely restart the HOST system so that either (A) the VM in question transfers to another host and starts responding again or (B) when the HOST comes back up I can work with the VM again.

This *ONLY* happens on the Gentoo Linux guest VMs and not my Windows VMs.

Wondering if anyone has hints on this.

Thank you for your time.

Regards, Christopher K.

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Windows 2008 failover clustering fails with Event ID 1205 1069 1558

July 23, 2014, 7:56 am
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I have a two nodes Windows 2008 and SQL 2008 cluster running in active\passive.  I was restarting my nodes after applying windows update then I received the following error message below within Failover Cluster Manager. I get errors with Event ID 1205 1069 1558  this happens every month ..  Could someone help me on to find the root cause for this issue how to check if it is an issue with network or Quorum drive  ?

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Windows 2012 R2 Hyper-V clustering using "share nothing" strategy

July 23, 2014, 7:01 am
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Greetings,

I have been trying to embrace the share nothing strategy Microsoft has put forth with Hyper-V clustering.  By definition, "A shared nothing architecture is a distributed computing architecture in which each node is independent and self-sufficient, and there is no single point of contention across the system. More specifically, none of the nodes share memory or disk storage."  I have plenty of experience with Failover Clustering using iscsi and FC.  But, what I was looking to get out of this lab was a true HV cluster which relied on DAS and move away from iscsi and FC, but also not be dependent on 1 file server which would defeat the SN strategy.

I have spent a week on this lab and gotten always nowhere.  Does anybody know if this is truly possible and point me to a step-by-step or lab which goes start to finish on this topic?  All those which I have read eventually begin using iscsi targets or network shared storage. 

Thanks much in advance.

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CAU - ignore WSUS

July 23, 2014, 11:36 pm
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I just installed new Windows Server 2012R2 cluster with Cluster Aware Updating. I'm testing CAU before going live with this cluser.
CAU shows "No updates", but when I manually scan for updates from Server Manager -> Windows Updates, then it shows lots of updates to install.

Maybe WSUS (used by SCCM) intefears with CAU updates search? Is it possible to ignore WSUS and search updates only from Microsoft Updates (web)?

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Connection was interrupted between Failover cluster and shared storage

July 24, 2014, 3:10 am
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Hi guys,

My Hyper-V server was composed of 2 HP servers, the OS is win2008, they formed a cluster, and the VM’s storage is shared by NetApp Snapdrive.  

I met an issue yesterday; one of the Failover Cluster nodes was disconnected to the shared storage, it was missing a disk in ‘Server management\Storage\disk management’ and ‘Server management\Storage\Snapdrive\Disks’ pane.The windows system log was shown as below:

Event ID: 1038   Ownership of cluster disk 'Disk G:\' has been unexpectedly lost by this node. Run the Validate a Configuration wizard to check your storage configuration.

Event ID: 1069   Cluster resource 'Disk G:\' in clustered service or application 'a3d8511b-6232-44a9-9c47-5e65851e2e09' failed.

Event ID: 61110   ONTAP DSM was unable to communicate with the logical unit on DSM ID 03000102. The DSM will attempt a fail-over.  The data section of this log entry contains the NTSTATUS code.

Event ID: 15   The device, \Device\Harddisk3\DR3, is not ready for access yet.

Event ID: 61034   The multipath logical unit /vol/vol3/qtree2/{15489d81-9dc6-4a97-82fb-10e7a8c40d34}.rws on storage system CN-COQ-Storage2 disconnected.

The cluster events were shown as below:

Event ID:  1038  Ownership of cluster disk 'Disk G:\' has been unexpectedly lost by this node. Run the Validate a Configuration wizard to check your storage configuration.

Event ID:  1069  Cluster resource 'Disk G:\' in clustered service or application 'a3d8511b-6232-44a9-9c47-5e65851e2e09' failed.

Event ID:  1034   Cluster physical disk resource 'Disk G:\' cannot be brought online because the associated disk could not be found. The expected signature of the disk was '{1b20a5bc-bcd0-489a-b84f-935982eaf484}'. If the disk was replaced or restored, in the Failover Cluster Manager snap-in, you can use the Repair function (in the properties sheet for the disk) to repair the new or restored disk. If the disk will not be replaced, delete the associated disk resource.

Event ID:  1205   The Cluster service failed to bring clustered service or application 'a3d8511b-6232-44a9-9c47-5e65851e2e09' completely online or offline. One or more resources may be in a failed state. This may impact the availability of the clustered service or application.

Event ID:   5121    Cluster Shared Volume 'VHDData' ('Disk G:\') 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.

I have been contacted with NetApp; they told me the connection was reset by theinitiator, and they suggest me to contact Microsoft; I want to find the root cause of this issue, so please help me. Thanks in advanced.

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What is the value of the 'Name' attribute of an Instance of Resource Type IPv6 Adress?

July 24, 2014, 5:31 am
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See subject. I'm writing a Powershell script which is supposed to return the configured hostname and IP Address for a service associated with a role on a failover cluster. I'm using, e.g.. the following to retrieve the IPv4 Address:

$a1 = Get-ClusterResource "MyServiceDisplayName"

$b1 = Get-ClusterGroup $a1.OwnerGroup.Name | Get-ClusterResource | Where-Object {$_.ResourceType -eq "IP Address"}

$c1 = Get-ClusterResource $b1.Name | Get-ClusterParameter | Where-Object {$_.Name -eq "Address"}

and then I access the result via $c1.Value.

I want to do the same for an IPv6 address. The information I don't have is the 'Name' attribute of the result of the Get-ClusterParameter command, that is the condition of the  Where-Object in the line which gives me $c1. (for the IPv4 Address I got it by running this on our test server, but that does not have IPv6 configured, so I cannot do the same in that case). Is it simply 'Address' as well?

TIA, Thomas

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iscsi initiator question

July 23, 2014, 9:39 pm
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hello Forum,

i am trying to setup iscsi on vm running server windows2012.

I created a target, assigned disk to it - file on local drive, assigned servers which would access this resource.

Now i try to connect initiator to server. Going to Server manager, Tools, iscsi initiator. i am on screen Iscsi Initiator properties. It does not see any targets and I am stocked since i can't proceed defining HA device which could be later used in a cluster.

Any suggestion would be appreciated.

thank you, Gene.

gene

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Cluster Aware Updating Fails if Windows Firewall service is disabled

July 25, 2014, 1:26 am
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Hi,

I have installed the cluster aware updating feature on a Server 2012 R2 Hyper-V cluster and it fails if the Windows Firewall service is disabled on cluster nodes. If I enable and start the service (even if Windows firewall is switched off) CUA is successful. In our environment we have Windows firewall disabled by default as we use other security mechanisms. Any idea how to overcome this issue?

Microsoft Partner

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Cluster nodes

July 22, 2014, 8:19 am
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Hi Team,

we have 2 nodes cluster set up, here if it is possible for 1 node put in to one data center and another node is put into  different data center.

ex :

node 1 placed into [ABC DATA CENTER]

node 2 placed into [XYZ DATA CENTER]

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Missing disks in a guest cluster

July 25, 2014, 1:10 am
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Hello!

There's a guest cluster named GuestCluster which consists of the two VMs (Win2012R2) -  Guest1 and Guest2.

Their  vhdx-files along with the two guest cluster disks (wich are shared vhdx files themselves: GuestQUORUM.vhdx and GuestDATA.vhdx) are located on the single CSV volume1 of the host cluster.

The GuestQOURUM and GuestDATA disks were visible in the ThisPC window and in the Failover Cluster Manager on both VMs (Guest1 and Guest2).

Yesterday I noticed that GuestQOURUM and GuestDATA disks are missing from This PC window on Guest2  although they still show up in the Failover Cluster Manager:

There're no errors in the EventViewer, there are no issues with the guest cluster - but the two disks are missing... ???

Thank you in advance,

Michael


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MSMQ Clustering with load balancing

July 25, 2014, 7:40 pm
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Hi,

I understand the MSMQ clustering creates an active and a failover node. My intention is to have both active nodes and if one fails the other to take it's traffic. I don't want to waste a machine that is not used 99% of the time. Please let me know what options are available to utilize both machines as well as provide safety in case of a crash.

Thanks!

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cannot add port rule to NLB

July 26, 2014, 3:37 am
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Hello,

I have set up two Exchange 2010 CAS + HUB in a NLB cluster. ( W2K8 R2)

I added some port rules: 25, 587, 995, 993 (All TCP traffic related to email, as you know).

The thing is that I want to add another port rule, and then I go to"Host Properties" \ "Port rules" , and there I see the ones I have created so far,  but the "add" button" is grey , not enabled.

I am logged in as the Domain administrator, and it was me who created the nlb cluster with the same user.

I am new to NLB, so I am probably missing something.

THANKS IN ADVANCE!

Luis Olías Técnico/Admon Sistemas . Sevilla (España - Spain)


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NLB Unicast and certificate for the machine

July 26, 2014, 12:46 pm
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Hello,

I have set up a two node nlb cluster, in unicast.

On the other hand, I have a GPO with which every computer in the network gets acertificate from the CA, through autoenrollment.

I am new to NLB , but from what I gather, the CA machine won't be able to issue any certificate to any of the two NLB nodes, because the virtual ip replaces to the actual ips's of the two machines ?. I am a bit confused.

Thanks in advance !!

Luis Olías Técnico/Admon Sistemas . Sevilla (España - Spain)

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