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Windows NLB - Cluster IP:PORT is not accessible from converged node

October 30, 2018, 4:36 am
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Hi All,

I would like to ask you whether any one know or can confirm that the following behaviour is right according to the NLB architecture:

I have deployed Windows NLB Cluster with two nodes. The Windows NLB is configured as a multicast cluster and the cluster IP:PORT is fully accessible from same VLAN and also from other VLANs, however problem is that from the node which is currently converged, ie. the cluster ip:port is not active on the server/node, the cluster ip:port is not accessible at all - when I try to run telnet on cluster IP:PORT, connection is immediately refused.

Is this known limitation/function of NLB cluster or something is wrong?

Really appreciate your answers or help

Regards,

--Jakub--

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Can't create a Client Access Point in Failover Cluster Server 2016

October 30, 2018, 5:17 am
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Hi all,

I created a cluster and added the file server role as the clustered role.  All the cluster related objects landed in the "Computers" OU (default location for new AD computer objects).  I didn't want them to stay here so created a new OU in which I placed all my cluster objects.  

I then visited the cluster to create my first Client Access Point, however it fails with error 800703eb.  I know this is related to the permissions on the OU, however, I am unsure as to what they should be.  (Finding it difficult to locate information on this.)

Can anyone help?

Many thanks.

Kath

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Event 1070 FailoverClustering error code 1629

October 30, 2018, 10:43 pm
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Hello,

I built a cluster and trying to add a second node.  Both servers are on two different subnets, they reached each other properly.

When I try to add the second server as a node, it times out, and in Windows logs, there is an event 1070 which shows "The node failed to join failover cluster 'DAG-Tech' due to error code '1629'."

There is another event 7024, with this description "

The Cluster Service service terminated with the following service-specific error: 
Data supplied is of wrong type."

The "Data of wrong type" corresponds to the meaning of the error code 1629.

How to resolve?  What data is wrong?

Thanks, Dominic

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Windows 2008 R2 | IIS7.5 | |NLB with Cluster node for Web-server

October 31, 2018, 12:42 am
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Hi All

We have two IIS web server 7.5 version running on windows 2008 R2 along with NLB cluster configured for Load balancing with two servers. Currently we are facing some issue with one server serve the request and other one  server was dropped the request.

While we trying to access the website below error we are  getting ,but some of the user website working through some other web server.

Error getting while trying to access the page like

“validation of view state MAC failed.if this application is hosted  by a web farm or cluster ,ensure that <machine key>. configuration specifies the same validation key and validation algorithm Auto Generate cannot be used in a cluster”.

refer the Link id=314005(https://support.microsoft.com/en-in/help/2915218/resolving-view-state-message-authentication-code-mac-errors).

How to capture and check the logs in both IIS and NLB .

Kindly help me to this issue ,How to resolve the issue without impacting our production environment.

Thanks and Regards

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Windows AD user Password Reset Logs for report Format!!

October 31, 2018, 12:48 am
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Hi Team

How to fetch  AD user password reset logs for month and Year basis .

We need detailed logs each user  basis password reset logs details .

If Audit log is not enabled in server how to get the logs from server.

Thanks 

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Cluster quorum in Windows 2016

October 31, 2018, 4:14 am
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Suppose I have a multisite 4 nodes cluster, and one fsw

each site has two nodes.

how many nodes failure before the cluster is down.

for example 2 prod site node down + 1 dr site node down.

will the cluster down ?

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VM Windows Server licensing in Cluster

October 31, 2018, 5:21 am
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If mix of OS editions and versions are running in VMs and hosted in multi nodes cluster. How to license Windows OS.

Scenario: if a 3 node cluster running total 12 Virtual machine with Windows Server 2008 R2 Enterprise,Windows Server 2012 Standard and Windows Server 2012 R2 Standard edition and DRS is active without any rule specification. It is virtualized with Vmware technologies.

Regards,

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Dynamic vote of the failure nodes

October 31, 2018, 6:31 am
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suppose I have a 4 nodes cluster with FSW (windows 2016 ). 2 nodes at each site . Prod and DR

suppose 2 nodes in DR down. The dynamic vote of the 2 nodes change to 0 ??

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Lab Environment: The cluster does not start even if one of the node is up

November 1, 2018, 12:10 am
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I have a lab environment with the following setup:

Host: WS 2016 with hyper V installed.

2 VM's (WS2016) clustered running Fileshare with no witness (It is a lab environment just for testing purposes).

ISCSI disk has been created on a third VM which is being used as Fileshare.

CASE:1

Cluster running with both the nodes up. Current owner of the Role: say SERVER1.

I shutdown the server and the new owner of the role is SERVER2. CLUSTER IS STILL UP AND RUNNING.

CASE:2

With the current role owner being SERVER2 and SERVER1 being currently shut down. If I shutdown SERVER2 now, the cluster is going to stop (very obvious). 

Upon starting SERVER1 again, the cluster is not up. SERVER1 shows the ISCSI disk to be offline. Tried manually starting the cluster but still it does not start (I could not check the votes as I could not access the cluster node option in Failover cluster manager, as the cluster is Stopped). Cluster events does not show any data.

CASE:3

Upon starting SERVER2, the cluster starts automatically and the Owner Node is SERVER2.

Questions:

1) Why the cluster does not start in case:2 ? Is it because of the voting ? How do I troubleshoot ?

2) Is this a normal behaviour ? How do I override it ?

3) What are your advise for the best practices when working with WSFC ?


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Windows AD user password reset details through powershell script!!!

November 1, 2018, 2:23 am
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Hello All,

How to get the Password change/reset logs from AD server through Powers-shell Command with on daily basis automatic

scripting.Currently i am using below command to get the last reset details.


get-aduser -filter * -properties passwordlastset, passwordneverexpires |ft Name, passwordlastset, Passwordneverexpires


dinesh kumar

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Failover cluster (group) maximum failures limit

November 1, 2018, 3:44 am
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Hi Folks

I have 2 nodes cluster with 6 SQL roles 16 SAN Disks. My question is what is the recommendation for maximum failures limit ?

When you install Cluster it is 1 in 6h but I think I should change it..

Any suggestions ?

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Powershell command to get all IP address for a FO Cluster

November 1, 2018, 6:06 am
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Hi

We are looking for a command to get all IP address for a Windows 2012 R2 failover cluster (HV cluster with CSV, Mgmt & LM NICs)

Thanks in advance

LMS

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Stretch Cluster / Storage Replica / Log volume VSS Snapshots due to built-in Cluster Config Backup ?

November 2, 2018, 8:08 am
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Hi fellow Engineers.

I am currently investigating an annoying issue on a virtual (!) WFC (v2016) that is being used as a 4-node HA FileServer (2node HA in each datacenter). Storage (2x 5TB) is being replicated succesfully (synchronous/write-ordered) between the 2 datacenters. 

The annoying issue, is that every 4 hours (randomized within a few minutes) all connected users experience a short freeze of a few seconds up to a minute when accessing the Fileserver. Looking at the logs and StorageReplica known issues, it is clear this is due something trying to create a VSS Snapshot of the Replica LOG volume (which you should not do !!!), and the culprit seems to be an internal mechanism trying to create a Cluster Config Backup - including VSS snapshot of all local volumes of the Role owner. 

If I switch the Role to another node, the issue just follows so it is not tied to the Cluster owner, but the role owner !

There is no backup being scheduled at that time, and I have no idea what would create an automatic VSS of all connected volumes.

Before going into details ... I have troubleshooted the hell out of this thing and cannot find it ... I do have some ideas, but the timestamps do not match.

Environment:

Lenovo blades (x240) with VMWare 6.5u1 (was also present on 6.5)

Dell Compellent Storage

3x 1Gbit uplinks (VMXNET3) per Node 

Veeam Backup & Replication (9.5u2) using the latest Veeam Agent so we are not using the VMWare API for backup. When the Veeam Agent Backup schedule runs, the issue is not present as only the datavolumes are being backed-up (using VSS).

Anyone else having the same issue or seen this issue ?

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Heartbeat network

November 2, 2018, 10:12 am
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I know later than windows 2008 , all heartbeat traffic go through all interface on the server.

support I have 3 interfaces, can I disable one of it not sending heartbeat ?

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windows 2016 cluster QuarantineThreshold

November 2, 2018, 10:24 am
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Windows Server Failover Cluster Fails

November 3, 2018, 3:49 am
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Dears,

We have a Windows Server 2012 Cluster built of two nodes (node 01, node 02).

The cluster is being used for SAP with Sybase Database engine.

We are experiencing an issue that happens from time to time.

Whenever Node 01 hangs, all the system hangs, and Node 02 never restore the service and be active.

In normal situations if Node 01 is totally down, Node 02 takes  responsibility, but if it hangs it keeps all the storage partitions reserved for it and never release them until I force restart it.

What do I do?

Regards,

Khalid. 

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basic to CSV import -data loss

November 3, 2018, 9:06 am
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We are sort of in a transition. Trying to build a separate windows server 2016 infrastructure.

Our SAN vendor does not yet support CSV volumes. They expect to have update in a few weeks tat resolves this. I have the connection to San from cluster node as basic disks. I would like to get started on VM creation. If I would start building the VMs on the basic disks could I later add these disks into cluster shared volumes without losing data?

Thanks for your time and consideration.

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Getting Event ID 2051 on SQL Cluster / FailoverCluster Logs

November 4, 2018, 3:47 am
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Hello Everyone,

Getting the below event on SQL Cluster nodes.

ERR 2051 : Microsoft-Windows-FailoverClustering

[RCM] [GIM] ResType Virtual Machine has no resources, not collecting local utilization info

ERR 2050 : Microsoft-Windows-FailoverClustering

[RCM] ResourceTypeChaseTheOwnerLoop::DoCall: ResType MSMQTriggers's DLL is not present on this node.  Attempting to find a good node...

I referred to the below link here it says safe to ignore or install MSMQ.

https://blogs.msdn.microsoft.com/clustering/2013/04/05/msmq-errors-in-the-cluster-log/

Thank you so much in advance.

Regards,

Mohammed


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Site aware cluster failover affinity

November 4, 2018, 9:45 am
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Connecting to Failover cluster Access denied

November 5, 2018, 9:47 am
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I use a domain user which has local administrators right in the computer, however when connect to the failover cluster got the above error.

after giving the domain user "Domain Admin", the user can connect to cluster successfully.

If I don't want to give Domain Admin to the user, what else permission is should grant to this user so that it can access the cluster ?

it is using windows 2016

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