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Windows Server 2016 and High Availability Remote Desktop Services with thin clients

October 17, 2019, 12:53 am
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Hello,

I need to find a way on how to configure two redundant Window Server 2016 servers, in a way that for the thin client it is transparent which of them is really active to grant the Remote Desktop Service session. The thin client would not know which of the two servers he would be physically connected to. If this server fails, the other server will continue to grant the session to the thin client without this noticing any interruption. 

In principle I will not run any virtual machine. The software that I use will be installed in the real machines. 


Can you please suggest how this could be done?


Thanks in advance.

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Switch Embedded Teaming

October 20, 2019, 7:38 pm
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I am creating a new storage spaces direct cluster on server 2019 to replace an existing 2016 cluster.  I am using dual port Mellanox x-5 cards after adding the physical NICs to the SET switch I create the virtual NICs for hyper-v after adding the vnics the server reports their connection speed as 10 gigabits which is the speed of the physical links but on my 2016 storage spaces direct cluster the virtual NICs report a connection speed of 20 gigabits per second which would be the aggregate speed of the two 10 gigabit links.  What I am trying to find out is what the virtual NICs are supposed to report their connection speed as the single physical links or the total of all the links in the virtual switch set.  I can’t seems to find an answer of what the correct answer is in my searching.  I want to make sure I am not missing a set somewhere.  Can anyone shed some light on what should the virtual network cards report their speed as?
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NLB Cluser add host | Error: The RPC is unavailable on the specified computer

October 22, 2019, 10:03 pm
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Hi,

I have facing problem adding host in NLB Cluster. it shows error: The RPC is unavailable on the specified computer.

1. account is administrator.

2. File and printer sharing is enabled.

3. DNS record resolving and ping each other.

4. 2 NIC card.

5. cluster method "Multicast".

Please give suggestion, how to solve the problem.



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Failover cluster quorum problem

October 24, 2019, 1:07 pm
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Hi all. I´v gato a Win server 2016 failover cluser with a File Witness reporting no error or warning on "test failover cluster Wizard"

However, when testing one node failure, Clsuter Stopped (And S2D running upon this also with this error:

event 1564,  File Share Witness Resource failed to arbitrate for the share \\xxx\xxx. Pleasse ensure its accesible.

I´ve checked and I can access with no proble to this share from both hosts. REplacing the File Witness solves the problem, But i Got no trust in this quorum anymore. Is there a way to check Witness access from a faioover cluster?  somehow like a "ping"

Regards 

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Hyper-V Cluster 2016

October 28, 2019, 8:34 am
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Hello,

I'm installing new 2 node Hyper-V Cluster 2016 all up and running 

1. I have few VMs running under Hyper-V manager.

2. Trying to make the VMs highly available.

3. I'm able to perform the following task

Under the Hyper-V Cluster Manger I select Roles, Configure Role, Select Virtual Michine, I select the VM and it runs without any problem the VM is now High Availability.

Now The problem is when I do a second VM  

I repeat the same steps and it doesn't created an new VM it creates a group that I can't manage 

can't do live migrate I'm attaching 2 images 

fist image showing first VM and second showing to VMs on my don't know if this is a 2016 setting


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S2D verification

October 28, 2019, 8:30 pm
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quick overview. 

I have had a 4 node cluster working on 2016 for a couple years as a learning project. during that time my friends also played with it adding around 40 vms. the whole thing slowed to a crawl with even clicking on a start menu taking around 2 minutes to respond. I decided at add some SSD's as it was all 15K disks before but was told if I enabled s2d with no cache there is no supported method for adding cache.

I destroyed the disk and pool and upgraded all 4 nodes to 2019. disabled and re-enabled S2d and built a pool. tried to add a disk but the Gui is useless. power-shell'd a small disk then expand to proper size but I cant tell if I am properly caching to SSDs or not. is there any way to know? my SSDs are showing as journaling which is a good sign but I don't want to move any VMs back till I know my storage is good.

setup:

4 x dell r710s with dual e5-2697's

1 146gb 15k OS drive

5 146gb 15K storage drives

2 200GB industrail SSDs for cache

future setup

I have 2 more nodes with same hardrive/ssd setup but I want to make  nodes work before adding 2 more.


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ADMIN $ share on the failover cluster does not exist

October 29, 2019, 1:12 am
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Colleagues, help!
I have a working CLUSTER cluster of two nodes. On both nodes is windows server 2012R2. I am trying to install the Data Protection Manager 2012R2 agent to protect my cluster. In doing so, I get the error "The agent operation failed because the ADMIN $ share on CLUSTER does not exist".
I checked this situation and this is what happened:
\\ node01 \ admin $ - available
\\ node02 \ admin $ - available
\\ CLUSTER \ admin $ - not available
How can I open access to the administrative shared folder on the cluster?
Thanks!
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AlwaysOn WSFC 2016 CNO was moved

October 29, 2019, 7:35 am
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Hi All,
I have SQL Server 2016 (EE) with AlwaysOn configured in my environment. During a recent maintenance window I was updating IP Addresses/Names of resources in my WSFC and as a result the CNO was moved from under the Cluster Core Resources to being listed as a resource under AG Name as if it was the listener. This caused this one particular AG to then use the CNO as if it were the listener and made the AG failover to the Synchronous replica as the primary. Not sure how to get the CNO back listed under the Cluster Core Resources and removed from AG w/o breaking my WSFC along with the other AG's. CNO is circled in red below. Any help would be greatly appreciated

Listed under the Roles is the name of each AG. The bottom of screen provides more details on each AG. However this one particular AG has 2 resources listed under the Server Name. 1 is the AG Listener and the other resource is the (CNO) cluster named object. Not sure how the cno got included as AG Server Name Resource but i need to remove CNO from AG and get it back listed under Cluster Core resources

Listed under Roles is the name of each AG. The bottom half of screen provides additional details for each AG Role. This particular role has 2 resources listed under Server Name 1 is the AG Listener and the other is the (CNO) Cluster Named Object

KrisT_SQL


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FailoverClusters Poweshell Module is not loading or listed even if the failover Clustering feature has been installed.

October 29, 2019, 8:07 am
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I made a cluster from 4 server nodes and all are joined to the cluster but I cannot use the powershell comands from the failover clustering powershell module.

For some reason is not loading even if it is present in the system32 powershell path. 

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clussvc causing CPU cores to hit 100% constantly

October 29, 2019, 1:18 pm
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Hello,

We are seeing a really strange situation. In a 4 node cluster HCI setup, newest available Microsoft certified hardware, running fully patched (2019-10) Windows Server 2019 DC with S2D enabled, there is constantly a CPU being maxed out at 100%

According to Nagios alerts I have setup, this happens every hour or so:

Service: CPU-7-Node-0 / CRITICAL: CPU-7-Node-0 = 100 and seeing the performance monitor on all cores, there is always a core being at 99% and falling back down.

I thought initially this was due to a problem VM running or storage running on the node, but even if the VMs are fully off the node, disks are owned by other nodes and Infrastructure File Server role, but the CPU is still being hit. I do not see any alerts in the event viewer about any issues with the cluster and it fully validates with Success on every applicable test.

Restarting theclussvc service on the node, alleviates the problem for about 12 hours, but the issue comes back. I am using latest BIOS/drivers.

Thank you in advance.


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Cluster name pointing to Passive node instead of active node

October 30, 2019, 5:40 am
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Hi!

I have a Windows Server 2008 R2 two node cluster.

Cluster name:   CLUSM00

Active node:      CLUSM001

Passive node:   CLUSM002

There are a number of SQL instances on the Active node. When I rdp to the clustername it logs onto the passive node... This is causing havoc with the SQL backups (As they point to the clustername).

Any Idea how to make the clustername point to the active node?

Thanks,

Zoe

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Migrate Failover cluster role SQL server to new cluster shared volume (server 2019 - MSSQL 2017)

November 4, 2019, 11:54 pm
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We have a 2-node failover cluster (windows server 2019) with iscsi cluster shared volume and on the cluster a SQL server 2017 role is running. We now have to migrate to our new storage. A new cluster shared volume is already configured on the failover cluster.

Searching the Internet for a migration guide the only thing I can find is rename the driveletter, but in our configuration we have no driveletters. 

Can I just copy the data to the new CSV and rename the volume name in de ClusterStorage folder?



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s2d with 2 nodes

November 6, 2019, 4:01 am
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dears,

i need your help and advise with the below:

Please find below the scenario:

A new 2 nodes s2d will be created in order to host virtual machines that will be migrated from a standalone hyperv to this newly created cluster.

The standalone hyper-v has three different virtual switches:

  1. One for the LAN network communication
  2. One for the CCTV
  3. One for the DMZ

The new s2d cluster has on each nodes 2 nics who will be teamed using the set switch command.

The output will result to have one set switch.

I will create for the set switch three network adapters ( one for the cctv, one for the dmz, one for the smb/hb)

I will assign the LAN ip on the set switch itself.

Will migrate the vms from the standalone to the new s2d.

Vms already connected to the LAN will be assigned the set switch ( vswitch) created.

The question how to assign the other net adapters( cctv, dmz) to the virtual machines migrated which were connected to cctv/dmz hyperv vswitch on the standalone hyperv( because if we go the settings of the vm, we can just see the set switch created and not the adapters)

please guys your help is appreciated as im gonna deploy the project soon and i the network part is giving me a headache as i cannot test it in lab

best regards,

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Server 2019 - Clustering Issue with UDP Port 3343

November 6, 2019, 1:28 pm
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Evening all,

We've recently ran through an in-place upgrade of our Cluster servers from 2016 to 2019 Datacenter edition. It all went very smooth and everything seemed to be working.

However - a week later and suddenly the cluster is failing! A validation report shows that the three nodes cannot talk to each other on any cluster network via UDP Port 3343.

I've opened the necessary ports on the firewall, in addition to what HyperV probably adds - but it's still happening. I've restarted the machines - still happening. I've used Telnet on the servers to test they are open - and they are.

This was working fine as 2016 - so something has gone wrong somewhere.

I'd be grateful if anyone could help or offer advice on what to look for.

Thanks

Gareth

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Combine WS 2012 and 2016 in same WSFC

November 6, 2019, 2:04 pm
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Hi All:

Months ago, during a migration (moving SQL to new virtualized hardware) I combined 2012R2 and 2016 Guest OS in the same WSFC, only needed during a 2 week migration and it worked well.  Then I decommed the old boxes and business as usual on the new boxes.  During the validation wizard of the WSFC, it gave a warning but could create it.

Now I want to do this with some of my 2012 Proper boxes (NOT R2) but it gives a hard error, I can still get past it, but curious if anyone can point me if this is supported in any way, for migration purposes only, I found docs on the 2012R2 and 2016 in the same cluster months ago, now I can no longer find them.  Any help would be appreciated.

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Collecting Cluster Performance Data

November 7, 2019, 7:00 am
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I’ve been using Windows Admin Center to view performance data as I execute different types of workloads in a Cluster with VMs and record the results. It works well visually, but if I run the workload for a specific amount of time the data can be skewed depending on when the snapshot at the moment was taken when I record those results. I think results that show a high, low, and average number to a counter may be better to compare with other results. Looking to collect the obvious CPU, Memory, IOPS, Latency, Throughput, etc.

I’m looking for an efficient method to collect this from nodes in a cluster running Hyper-V and S2D. Should I run PerfMon on all the nodes, or is there a way to calculate more efficiently using something like Get-ClusterPerformanceHistory, anything else I am missing?

T.J.


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Admin Center hyper-converged cluster error ('There are no more endpoints available from the endpoint mapper.').

November 8, 2019, 1:22 am
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Hello! I have  hyper-converged s2d cluster on windows server 2016 nodes. I'm trying manage it whith admin center. Everything was done with help of this article https://docs.microsoft.com/en-us/windows-server/manage/windows-admin-center/use/manage-hyper-converged

But when i'm trying to connet whith admin center to s2d i get the error "Unable to create the "SDDC Management" cluster resource (required)" and int cluster events i recieve this error:

Cluster resource 'SDDC Management' of type 'SDDC Management' in clustered role 'Cluster Group' failed. The error code was '0x6d9' ('There are no more endpoints available from the endpoint mapper.').

 

then

The Cluster service failed to bring clustered role 'Cluster Group' completely online or offline. One or more resources may be in a failed state. This may impact the availability of the clustered role.

and then

Clustered role 'Cluster Group' has exceeded its failover threshold.  It has exhausted the configured number of failover attempts within the failover period of time allotted to it and will be left in a failed state.  No additional attempts will be made to bring the role online or fail it over to another node in the cluster.  Please check the events associated with the failure.  After the issues causing the failure are resolved the role can be brought online manually or the cluster may attempt to bring it online again after the restart delay period.

What i'm done wrong?

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Disk Sharing - Server 2016 Cluster

November 8, 2019, 11:04 am
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I'm sure this is probably a newbie question, but it is so hard to find information.

A person would think the ability to do this would be the most fundamental idea in failover clustering.

I have Failover Clustering set up, everything seems to be working fine. Also have SQL server (2017) clustering set up and everything seems to be working fine. I am able to run SQL queries, etc. from both nodes and a different computer.

The problem is support files. We have spreadsheets and document templates that users need to be able to access. I try to put them on the cluster nodes, but I cannot "Share" any of the folders in Active Directory

The File Server role is installed on both nodes (I call them SQL2 and SQL3). The drive I wish to share is listed in the Failover Cluster Manager as "Available Storage".

I put the drive in maintenance mode, and was able to share a folder on SQL3, but it seems to be shared only on that node (the path is '\\SQL3\HDrive')

In Computer Management,  on SQL2 , I cannot even see the drive in "Sharing." or in File Manager. But it does show up in Cluster Manager...

How can I get others to see the files if SQL3 goes offline?

Or what am I missing?


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2019 Hyper-V Cluster - Quorum

November 8, 2019, 4:14 pm
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Hi All,

I just finished setting up a hyper-V cluster in our environment, a 3 node cluster.

since the cluster node count is "Odd" will it still be recommended rather necessary to put a witness (disk) in this case?

what i normally practice is to only put a witness when the cluster counts is "even" (for tie-breaking)

hopefully you can share me your thoughts

Thanks

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Cluster Shared Volumes: How to mask/unmask disk???

November 11, 2019, 5:32 am
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