Quantcast
Channel: High Availability (Clustering) forum
Viewing all 3614 articles
Browse latest View live

NLB afinity in RDS

$
0
0
What type of affinity (none or single type) should i configure for connecting to terminal farm? Is one RDP session represent only one NLB connection? If I'll set no affinity, will my clients successfully connect to the farm?

Importing a fully functional Cluster to SCVMM

$
0
0

Hello,

I'm implementing SCVMM 2012 in my environment but i already have a fully functional Hyper-V Server Core cluster.

When i "import" my cluster on the SCVMM console, it brings the nodes, network etc... but not all the disks and it's not possible to MOVE virtual machine through hosts. (No error messages, it just says "Its not possible to move with actual cluster configurations") 

When i ran "SCVMM's Cluster Validation" it results in several bad configurations of Disks and Network, but when i ran it in the Cluster Console is everything OK.

Any ideas? 

Windows Server 2008 R2 cluster, MSDTC issue

$
0
0

We recently installed MS Windows Server 2008 R2 EE on two physical IBM System x3550 M4 server and this cluster hosts Biztalk resources on it. MSDTC was configured prior to Biztalk resource were added and after Windows Cluster was setup. Cluster validation reports no issues. But, if we try to import .MSI packages in Biztalk on active node with all the resources on it it goes well, but the next step with installing the .MSI package on another node fails

with the error Log Name:      Application
Source:        Microsoft-Windows-MSDTC Client 2
Date:          1/21/2014 5:07:58 PM
Event ID:      4104
Task Category: Cluster
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      hostname.company.com
Description:
Failed trying to get the state of the cluster node: MSDTC.The error code returned: 0x80070005

It previously did work well, but the only thing which changed is that on one node CNA adapter was replaced, since it was faulty (i.e. new MAC-address).

Deleting the MSDTC resource didn't resolve the issue as suggested here.

We are considering reinstalling cluster from scratch since this solution should be delivered shortly and we have lack of time for investigation.

Firewalls are disabled. No errors in cluster validation report.

Any suggestions/ideas?

Cluster Shared Volume Offline on Windows server 2012 R2

$
0
0

Hi All,

I keep getting this error on my Windows Server 2012 R2 Cluster: "cluster shared volume is no longer accessible from this cluster node because of error '(1460')". I also get I/O timeout errors as well.

In my Lab, I have 2 Windows Server 2012 R2 Hosts both running the following specs

Server Specs:

Intel Gen3 i7 Processor

64-Gig of Ram

2x Intel I350-T2 (For use with SRIOV and VMQ) --> Latest Drivers installed from Intel

My NAS device is a Synology DS1813+, which supports ODX - Latest Updates applied from Synology

The above error is constantly occurring and is taking my CSV's offline, all VMs are either paused or in a crashed state.

I know their is hotfixes for Windows Server 2012, however the problem seems to persist on Windows Server 2012 R2.

Currently I've disabled VMQ and ODX, and will be monitoring it.

I'm not backing up any VMs i.e. not using VEAM or DPM, since this is a lab environment.

Are their any hotfixes for Windows Server 2012 R2 or any workarounds.

I will also be raising a case with Synology.

How to change the static IP Address of a Failover Cluster Instance with PowerShell?

$
0
0

I found this in the documentation for DHCP , but I am planning to use this machine for a DMZ implementation thus I cannot get away with DHCP?

Get-ClusterResource "IP Address 172.24.11.0" | Stop-ClusterResource | Update-ClusterIPResource –Release

Error running unsigned driver inventory and test

$
0
0

I’m working a challenge where the cluster validation tool on a Server 2008 R2 SP1 based cluster throws an error running the unsigned driver inventory/validation. It doesn’t say that there are any unsigned drivers but rather says:

An error occurred while executing the test.
There was an error getting information about the unsigned drivers installed on the nodes.
There was an error retrieving information about the Unsigned Drivers from node 'someclusternode.contoso.com'.
Shutting down

If we run the tool from other nodes it will always pass itself and 4 out of the 5 other nodes, but there will be one node that will trigger this. And the node that it fails on is not consistent.

All of the other tests run just fine, and I can’t find anything in any KB that points me in a troubleshooting direction.

Windows 2008 R2 Failover cluster failed

$
0
0

We have 2 node failover cluster.   When we "tested" failover, all seemingly went well.  Service failed across and all drives with the exception of the Quorum failed across (did not manually failover the quorum disk).   However, yesterday, our primary node was rebooted and the failover did not work.  However, we were able to manually bring back the primary node and its services except for the the GxClusPlunIn instances.   The only service on this cluster is SQL Server.

It suggests that we run the Validation Test.  However, as I am new to Failover Clustering and did not configure this cluster I want to be sure that running this test will not down the nodes.   If so, I will need to schedule the test during off hours.  

Also, it was my understanding from reading many articles that in Windows 2008 the Quorum disk does not failover automatically during the "manual failover test" but should a node fail, the Quorum disk "will" failover automatically.   It seems in our case the Quorum disk did not failover.   Can anyone provide some insight into common causes for this or point me to some documentation that will help me troubleshoot this problem?


Cal Miyatake

Risk & Health Assessment

$
0
0

Hi,

Recently Risk & Health Assessment done by microsoft -- They suggested us toenable dynamic updates enabled for all necessary DNS record types on the public interface.

Using Static Ip address for both Public & Private NIC.

I could not find this option in the Public Network Card. Kindly help me out where i have enable the dynamic updates.


Regards,

SreeM



Cluster "mscluster.cluster" classess missing in windows2012

$
0
0

I don't see mscluster.cluster class in windows2012 after cluster build but same I get in windows2008 ,my code started failing due to that,example below , can somebody point out why classes are missing and how to get them in registry?

PS D:\do_not_delete\Scripts> New-Object -Com "mscluster.cluster"

New-Object : Retrieving the COM class factory for component with CLSID {00000000-0000-0000-0000-000000000000} failed

due to the following error: 80040154 Class not registered (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG)).

At line:1 char:1

+ New-Object -Com "mscluster.cluster"

+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

    + CategoryInfo          : ResourceUnavailable: (:) [New-Object], COMException

    + FullyQualifiedErrorId : NoCOMClassIdentified,Microsoft.PowerShell.Commands.NewObjectCommand


ss

2012 R2 Storage Spaces Question

$
0
0

I am looking to end up having a tiered SSD/HDD array in a "RAID 10" type of setup. I am wondering if I am going to have to have dual port SAS drives to make my implementation work.

I am looking to have two 2012R2 Storage Spaces servers hooked to one 12 bay JBOD enclosure through SAS. To have these two servers manage this enclosure so I can take 1 server down at a time, am I going to have to have dual port SAS over SATA?

If I do have to go with dual port SAS drives, can I put SATA SSDs in the two servers themselves to act as a Write Back Cache? As I can't afford dual port SAS SSDs for my implementation.

Hyper-V internal (1 of 2, NOT Cluster) network unavailable in Failover Cluster Manager 2008R2

$
0
0

Hi all,

I had a very strange situation in my Hyper-V 2 nodes-cluster:

I have one networtk for HertBeat only (10.0.0.0/24) and second for HyperV internal networking for virtual machines (In properties marked "Do not allow clustern network communication")

Machines were working properly and any migration too.

One day, my secon done HyperV2 was marked red in Failover Cluster Manager mmc. I discovered that HyperV LAN is unavailable on this second node. BUT everything war working properly - HyperV2 node was on internet, communicated to AD domain, even culd run any virtual machine...

Several times I checked the configuration, also check TMG configuratio, I was wondering if it can not be wrong settings on network access rule, I tried to restart this host - no result, ... network was still unavailable.

After about a hour I found the resolutuion:

On my second Hyper-V node Disable / Enable Local Area Connection network adapter, connected to Hyper-V LAN in Network Connections control panel!

Hope this will help to somebody ;)


Marian, just trying to help you

My fail-over cluster is down on both the nodes.Unable to bring the SQL Services Up

$
0
0


Hi,

In my Failover Manager both both the nodes are showing down & SQL Server services is stopped.I tried manually starting the cluster services but it failed. I think my cluster is broken now how i can re configure the whole cluster again.

Who holds roles when cluster nodes communication is interrupted ?

$
0
0

Hi All,

This is a basic question, i always thought it's a one, but only today, i encountered a situation where i was unable to figure out the result.

Suppose that:

- We have a two nodes failover cluster (Windows Server 2012 Hyper-V cluster)

- VMs are spreaded between both nodes

- The quorum model is 'Disk and node majority' and the witness disk is owned now by the second node (Node 1), the CNO too

The situation:

- All the Node 1 NICs fail, the Node 1 is unable to communicate with any network (Storage is FC, not concerned by the network)

- Node 2 is normal

The question:

What is supposed to happen now ?

what is the process, who will get roles... ?

Thanks a lot !


Regards, Samir Farhat Infrastructure Consultant

Failover cluster server - File Server role is clustered - Shadow copies do not seem to travel to other node when failing over

$
0
0

Hi,

New to 2012 and implementing a clustered environment for our File Services role.  Have got to a point where I have successfully configured the Shadow copy settings.

Have a large (15tb) disk.  S:

Have a VSS drive (volume shadow copy drive) V:

Have successfully configured through Windows Explorer the Shadow copy settings.

Created dependencies in Failcover Cluster Server console whereby S: depends on V:

However, when I failover the resource and browse the Client Access Point share there are no entries under the "Previous Versions" tab. 

When I visit the S: drive in windows explorer and open the Shadow copy dialogue box, there are entries showing the times and dates of the shadow copies ran when on the original node.  So the disk knows about the shadow copies that were ran on the original node but the "previous versions" tab has no entries to display.

This is in a 2012 server (NOT R2 version).

Can anyone explain what might be the reason?  Do I have an "issue" or is this by design?

All help apprecieated!

Kathy


Kathleen Hayhurst Senior IT Support Analyst



Event ID 1069 with new File Server role in Windows 2012 Failover Cluster

$
0
0

I am struggling with getting a File Server role started in Windows 2012 Failover cluster with two nodes, basically I am just following the instructions in the CBT Nuggets videos, and funny enough the trainer also gets the same 1069 error, 

Cluster resource 'fs1' of type 'Network Name' in clustered role 'fs1' 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.

One node is a DC, the other is a member server. I have tried moving the role to the other server but no dice. I have attached the cluster.log file if anyone has any ideas.

http://sdrv.ms/1hrHYhB


Scale Out File Servers for IIS .NET Data

$
0
0

Hello,

I am having a difficult time finding a direct answer online about whether or not my specific scenario warrants the use of an SOFS cluster, or just a traditional File Server cluster. 

SCENARIO:

  • Roughly 30 Windows Server 2012 R2 Standard Web servers running IIS 8.X
  • Approximately 600 websites all running ASP.NET 4.0 applications
  • Each website requires 5 different Virtual Directories. 
  • Each Website is actually a radio station, and their content is very heavy on streaming media, pictures, and dynamic live content including streaming live radio broadcasts.
  • The Cluster is connected to a SAN via 8Gbps redundant (MPIO) Fiber Channel for the source of shared storage
  • We have 3 physical hosts in the Windows cluster that will accommodate either the SOFS or the traditional File Server

So basically here's my quandary.  I've set this up a number of times, and never got it to a point where I could put any sort of load on the platform to see a difference.  I fully grasp the concepts of both, but the problem is, I see very little documentation out there regarding others using SOFS technology for IIS Virtual Directories.  I do see that there are posts stating that it's actually part of it's core function aside from Hyper-V and SQL as well. 

So, anyone out there using this in a real world scenario?  Any recommendations on whether I should or should NOT be deploying an SOFS based on the information above?  If yes, or no, then why in either direction? 

I'm really looking to put a nail in the coffin on this question.  I actually have an advisory case opened up right now too, and even the first guy I talked to couldn't answer the question.  He said he'd have to get back to me.

Any help is GREATLY appreciated!  Have a good one!

How to take Cluster Quorum drive backup in Windows 2008

$
0
0

Dear All,

We have Windows 2008 Enterprise Failover cluster environment, I want to know do I need to take quorum drive backup and is it safe to take backup while servers are online. can anyone please tell me how can I take Quorum drive backup, can I use windows backup or Symantec backupexec utility or manual copy all folders?

Thanks

Agha

Windows 2012 R2 cluster nodes hanging frequently

$
0
0

Hello all,

Expecting better performance and stability, we  cretaed a new failover cluster in windows 2012 R2 with 3 hp BL460 G8 servers and SAN storage. But  it seems that even a folder movement or delete file operation causes the server un-responsive and hangs for hours.  Even it will not neatly sign out the current user, eventually leading to soft reboot.

Cluster validation doesn't produce any errors, another issue from windows 2012 R2 after solving NIC teaming problems.

Windows server 2012 R2 is still not stable????

Thanks

Mohammed Uwaiz A

how to remove a node from nlb at runtime?

$
0
0

hello,

i need to temporally exclude a node from an nlb.

May happen that a server is up and working but the web application i'm balancing is out of sinch with the same application in the others nodes.

Eg. some static variables are not the same of the same static variables of other nodes, because of a timeout, a write error and so on but the server is still working.

in this case i need to stop the server from nlb because the information in the web application is not in sinch with other nodes.

I need to prevent users from being serverd from this out to date server, untill it will became updated, but i need to do this programmatically

how can i do it?


event id 6237 on a Hyper-V cluster

$
0
0

Hi. We're getting error with event it 6237 (source FailoverClustering-WMIProvider) on a 2008 R2 SP1 Hyper-V cluster.

There was an older thread http://social.technet.microsoft.com/Forums/en-US/bae84aea-5a80-4637-989b-c31bbc1aa55a/event-id-6237-failover-cluster-wmi-provider-detected-an-invalid-character?forum=windowsserver2008r2highavailability which suggest installing KB974930, but that update is not applicable on my nodes (probably part of SP1?).

How do we solve this issue?

My message is concerning different property (PreviousOfflineAction - which I failed to find using either GUI, PSH or cluster.exe):

Failover Cluster WMI Provider detected an invalid character. The private property name 'PreviousOfflineAction' had an invalid character but the provider failed to change it to a valid property name. Property names must start with A-Z or a-z, and valid characters for WMI property names are A-Z, a-z, 0-9, and '_'.

This message is repeated 6x every 15 minutes.


Viewing all 3614 articles
Browse latest View live


<script src="https://jsc.adskeeper.com/r/s/rssing.com.1596347.js" async> </script>