Sql cluster network

i have got a curious question in regards to sql clustering, what if the client network goes down and the hb network is still up, does it failover and why? kindly assist.

Hello,
There is no such thing as a "heaertbeat" network anymore. You have four choices: Client communications, cluster communications, client and cluster, or none.
Anything marked for cluster communications means the cluster can do internal communications over that interface - which could be things like resource health checking, monitoring, cluster views, etc.
If your "client" network went down, the clients wouldn't be able to connect. You may have some other resources go offline depending on many different settings, and those settings may cause a failover to occur. However, if the failover would occur
there shouldn't be a problem as long as there is a network available for cluster communications.
-Sean
The views, opinions, and posts do not reflect those of my company and are solely my own. No warranty, service, or results are expressed or implied.

Similar Messages

SQL cluster 2008 R2 migration to new Hardware in VM

Hi,
We have a task to migrate existing Physical SQL Cluster DB to new Hardware but in VM. (cannot argue with the client)
hence our plan is to install new Cluster in VM with same Windows and SQL version i.e Win 2K8 R2 ENT w/SP and SQL 2K8
R2 STD w/SP and use SQL mirroring option for the DB to migrate on the new Server (keeping the downtime to as low as possible and advantage of bringing the old server online in case of any issues..)
Below points are for a single instance, couple of DB to migrate:
Keep the physical production server running
In-Parallel build New SQL Cluster in VM (keep same version windows/sql)
Keep Same drive letter for Quorum, MSDTC, DATA, LOG & Backup
Keep the same Instance Name, SQL Network Name can be different (will be changed to old network name once the PROD is shutdown)
Check all logins windows and SQL to be same on both the clusters
Copy all the jobs, SSIS packages etc.. .create the location folder as per current server on the VM SQL Cluster
Perform full backup of old cluster company-db databases or use the existing latest backup (full, differential, transaction)
Restore databases in the new cluster with no recovery so additional log file or differential backup can be restored
Create SQL Mirroring for the Database and select the principal server (old cluster) and the mirror server (new VM cluster)
Choose mirroring without witness ( no auto failover as we don’t need the old server later)
Start the mirroring – (hopefully everything synchronized and working)
During the downtime –
Stop the application/ client connection – if possible
Failover the DB through Mirroring option
Once the mirrored server becomes Principal and data is accessible – stop the mirroring
Now the new VM SQL Cluster DB is online
Shutdown the old cluster company-db (Node1 & Node2)
Come back to VM SQL Cluster and change the Network name to the old server network name (so that client connections are not affected)
Check if the DNS entries are updated with correct name and IP address
Delete DNS entries for old company-db on DNS Servers if not deleted, delete the old server SQL network name in computer object
Stop SQL Resources on the new VM SQL Cluster (take it offline all the resources)
Bring online the SQL Resource and make sure the SQL resources are online and new network name is reachable
Wait till you see machine name company-db in active directly (AD) and DNS server will have entry for company-db
Verify connectivity for company-db from outside.
If things are not going as per the plan then shut down the new VM cluster
Revert back the DNS settings
Power up the Old SQL Server
The DB will show “restoring mode” – use command to make it online “RESTORE DATABASE (dbname) WITH RECOVERY”
Check the DB
Start using the OLD server again
Troubleshoot the failed scenario ;)
Need to know if the above steps are okay, and any consideration once the new VM SQL Cluster is online.
Kindly let me know if there anything else to transfer apart from the logins, jobs, folder location etc.. !!
Many Thanks

Hello,
Well if you don’t change the instance name (name = ABC) then its OK.
Try the following resources about transferring SQL Server logins:
http://support.microsoft.com/kb/918992/en-us
http://www.mssqltips.com/sqlservertip/2081/transfer-sql-server-jobs-task-and-transfer-sql-server-logins-task-in-ssis/
Hope this helps.
Regards,
Alberto Morillo
SQLCoffee.com

Change the IP Addresss of Servers that are members of a Windows Failover Cluster and SQL cluster

Hi all,
I have 3-nodes Windows Server 2012 R2 Cluster, on top of it I have two clustered named SQL 2012 instances installed. We need to change the IPs and subnet for the three physical servers incorporated in the Windows cluster. What will be the impact on
the Windows and SQL clusters? What extra configuration is needed in both Windows and SQL clusters to make sure the service will not fail after changing the IPs?

A similar question was answered
here.
The impact is that your Windows and SQL Server failover clustered instances will be offline during configuration so you need to schedule downtime. Plus, your client applications will not be able to find the new IP addresses immediately, depending on your
DNS TTL value. Work with your network/systems engineers to find out what this value is or validate the existing TTL values on your clustered resources by checking the HostRecordTTL property value. A workaround here is to set the HostRecordTTL property values
of your SQL Server network name to a very low value, say 1 minute, and then change it back to the current one once all of the applications can connect back to them.
Edwin Sarmiento SQL Server MVP | Microsoft Certified Master
Blog |
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SQL Server High Availability and Disaster Recover Deep Dive Course

Failover Cluster networking issue

Normally when configuring a SQL cluster you put the communication to the shared storage (usually a SAN) on a separate network, and so your config looks something like this (long live ms paint!):
So in this example the 192.168.100.0/28 subnet is used for cluster inter-communication (heartbeat) and for access to the shared storage. Access to the shared storage is kept completely isolated from the corporate network and everyone's happy.
On the corporate network side the cluster registers itself onto DNS on the 10.0.0.0/24 subnet and clients can resolver the cluster name and connect to it.
My configuration is slightly different though and I am having some problems with the networking side.
In my configuration my shared storage is a file server cluster with two nodes. So the "clients" of the file server cluster are the SQL servers themselves. As such, the network configuration should, as I see it, be something like this:
In this setup the SQL servers would still connect to the shared storage on a separate subnet, as per best practices, therefore keeping the cluster traffic separate from the corporate subnet.
However, for this to work the file server cluster IP address needs to be on the 192.168.100.0/28 subnet, and still be able to register on the DNS server on 10.0.0.0/24 subnet. Now this already involves setting up a lot more things than you would normally
on the cluster NICs, it is no longer just an IP address and a subnet mask, now you need a DNS server and a gateway, as well as ensuring that the DNS server is contactable from clients on the 192.168.100.0/28 subnet, meaning complete isolation is gone.
I can't find any best practices on how to get this done, and I don't think that the solution is to put this on a the cluster communication on the corporate network, nor to create a DNS server on the 192.168.100.0/28 subnet, so does someone have any ideas
how to get this done or how to improve the design of the setup?

Hi cogumel0,
In your case personal advice is you can add the additional NICs on SOFS computers and SQL cluster then make all this NIC at a same separate subnet such as 192.168.101.0/24,
disable the default settings with new added NICs: DNS register AND NetBios over TCPIP, then create a static DNS A record point to the new added NICs IP address.
Since the SQL on SMB storage only support the UNC path, we need create a another CAP On SOFS cluster (192.168.101.0/24 subnet CAP), after that we can create a static DNS A record
for this CAP and configure the SQL cluster access this CAP only.
The related information:
Install SQL Server with SMB Fileshare as a Storage Option
https://msdn.microsoft.com/en-us/library/hh759341.aspx?f=255&MSPPError=-2147217396
Using Multiple Client Access Points (CAP) in a Windows Server 2008 (R2) Failover Cluster
http://blogs.technet.com/b/askcore/archive/2010/08/24/using-multiple-client-access-points-cap-in-a-windows-server-2008-r2-failover-cluster.aspx
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 - Unable to obtain IP Address from System Center IP Pool

Hi everyone,
we are trying to deploy a SQL cluster into a windows azure pack tenant cloud.
Our azure pack environment contains:
- 4X Hyper-V server in a failover cluster
- 1X SCVMM server
- multiple WAP server
Steps we have done:
-   Windows failover cluster is installed and configured successfully
-   Quorum disk was configured successfully
-   SQL server 2014 installation (via static IP) is successfully. But routing between the VMs is not possible.
-   SQL server 2014 installation (via DHCP) fails at the end of the installation with following error:
       -> We used DHCP to obtain an IP from the scvmm IP pool.
(01) 2015-04-22 15:29:11 Slp: Running Action: cluster_ip_address_cluster_config_Cpu64
(01) 2015-04-22 15:29:11 Slp: Action Data:
(01) 2015-04-22 15:29:11 Slp:   Feature = SQL_Engine_Core_Inst_sql_engine_core_inst_Cpu64
(01) 2015-04-22 15:29:11 Slp:   Scenario = install
(01) 2015-04-22 15:29:11 Slp:   Timing = ConfigNonRC
(01) 2015-04-22 15:29:11 Slp:   ConfigObjectType = Microsoft.SqlServer.Configuration.ClusterConfiguration.ClusterIPAddressPrivateConfigObject
(01) 2015-04-22 15:29:11 Slp:   FeatureName = SQL_Engine_Core_Inst
(01) 2015-04-22 15:29:11 Slp:   FeatureCpuType = Cpu64
(01) 2015-04-22 15:29:11 Slp:   FeaturePackageId = sql_engine_core_inst
(01) 2015-04-22 15:29:11 Slp:   FeatureClusterState = CompleteFailoverCluster
(01) 2015-04-22 15:29:11 Slp: Creating IPv4 address 'SQL IP Address 1 (SQLADFS)'.
(01) 2015-04-22 15:29:11 Slp: Creating cluster resource 'SQL IP Address 1 (SQLADFS)' of type 'IP Address' in group 'SQL Server (ADFS)'
(01) 2015-04-22 15:29:11 Slp: Bringing IP address resource 'Type='IP Address' NetworkName='Cluster Network 1' Group='SQL Server (ADFS)' Resource='SQL IP Address 1 (SQLADFS)'' online
(01) 2015-04-22 15:29:11 Slp: Bringing cluster resource 'SQL IP Address 1 (SQLADFS)' online
(01) 2015-04-22 15:29:12 Slp: Prompting user if they want to retry this action due to the following failure:
(01) 2015-04-22 15:29:12 Slp: ----------------------------------------
(01) 2015-04-22 15:29:12 Slp: The following is an exception stack listing the exceptions in outermost to innermost order
(01) 2015-04-22 15:29:12 Slp: Inner exceptions are being indented
(01) 2015-04-22 15:29:12 Slp:
(01) 2015-04-22 15:29:12 Slp: Exception type: Microsoft.SqlServer.Configuration.Cluster.ResourceOnlineException
(01) 2015-04-22 15:29:12 Slp:     Message:
(01) 2015-04-22 15:29:12 Slp:         The cluster resource 'SQL IP Address 1 (SQLADFS)' could not be brought online. Error: There was a failure to call cluster code from a provider. Exception message: Generic failure
. Status code: 5023. Description: The group or resource is not in the correct state to perform the requested operation.
(01) 2015-04-22 15:29:12 Slp:         .
(01) 2015-04-22 15:29:12 Slp:     HResult : 0x86d8003a
(01) 2015-04-22 15:29:12 Slp:         FacilityCode : 1752 (6d8)
(01) 2015-04-22 15:29:12 Slp:         ErrorCode : 58 (003a)
(01) 2015-04-22 15:29:12 Slp:     Data:
(01) 2015-04-22 15:29:12 Slp:       resourceName = SQL IP Address 1 (SQLADFS)
(01) 2015-04-22 15:29:12 Slp:       errorMessage = There was a failure to call cluster code from a provider. Exception message: Generic failure . Status code: 5023. Description: The group or resource is not in the correct state
to perform the requested operation.
(01) 2015-04-22 15:29:12 Slp:       WatsonData = Microsoft.SqlServer.Configuration.Cluster.ResourceOnlineException@58
(01) 2015-04-22 15:29:12 Slp:       DisableRetry = true
(01) 2015-04-22 15:29:12 Slp:     Inner exception type: Microsoft.SqlServer.Configuration.Cluster.ClusterProviderDetailedException
(01) 2015-04-22 15:29:12 Slp:         Message:
(01) 2015-04-22 15:29:12 Slp:                 There was a failure to call cluster code from a provider. Exception message: Generic failure . Status code: 5023. Description: The
group or resource is not in the correct state to perform the requested operation.
(01) 2015-04-22 15:29:12 Slp:                 .
(01) 2015-04-22 15:29:12 Slp:         HResult : 0x86d70002
(01) 2015-04-22 15:29:12 Slp:                 FacilityCode : 1751 (6d7)
(01) 2015-04-22 15:29:12 Slp:                 ErrorCode : 2 (0002)
(01) 2015-04-22 15:29:12 Slp:         Data:
(01) 2015-04-22 15:29:12 Slp:           ExceptionMessage = Generic failure
(01) 2015-04-22 15:29:12 Slp:           StatusCode = 5023
(01) 2015-04-22 15:29:12 Slp:           Description = The group or resource is not in the correct state to perform the requested operation.
(01) 2015-04-22 15:29:12 Slp:           WatsonData = Microsoft.SqlServer.Configuration.Cluster.ClusterProviderDetailedException@2
(01) 2015-04-22 15:29:12 Slp:         Stack:
(01) 2015-04-22 15:29:12 Slp:                 at Microsoft.SqlServer.Configuration.Cluster.WmiClusterResource.Online(Int32 timeout)
(01) 2015-04-22 15:29:12 Slp:                 at Microsoft.SqlServer.Configuration.Cluster.ClusterResource.Online(Int32 timeout)
(01) 2015-04-22 15:29:12 Slp:         Inner exception type: System.Management.ManagementException
(01) 2015-04-22 15:29:12 Slp:             Message:
(01) 2015-04-22 15:29:12 Slp:                         Generic failure
(01) 2015-04-22 15:29:12 Slp:             HResult : 0x80131501
(01) 2015-04-22 15:29:12 Slp:             Data:
(01) 2015-04-22 15:29:12 Slp:               WmiErrorCode = Failed
(01) 2015-04-22 15:29:12 Slp:               WatsonData = Failed@5023
(01) 2015-04-22 15:29:12 Slp:               Description = The group or resource is not in the correct state to perform the requested operation.
(01) 2015-04-22 15:29:12 Slp:               ErrorType = 1
(01) 2015-04-22 15:29:12 Slp:               Operation = ExecMethod
(01) 2015-04-22 15:29:12 Slp:               ParameterInfo = MSCluster_Resource.Name="SQL IP Address 1 (SQLADFS)"
(01) 2015-04-22 15:29:12 Slp:               ProviderName = WinMgmt
(01) 2015-04-22 15:29:12 Slp:               StatusCode = 5023
(01) 2015-04-22 15:29:12 Slp:             Stack:
(01) 2015-04-22 15:29:12 Slp:                         at System.Management.ManagementException.ThrowWithExtendedInfo(ManagementStatus errorCode)
(01) 2015-04-22 15:29:12 Slp:                         at System.Management.ManagementObject.InvokeMethod(String methodName, ManagementBaseObject
inParameters, InvokeMethodOptions options)
(01) 2015-04-22 15:29:12 Slp:                         at Microsoft.SqlServer.Configuration.WMIInterop.Resource.BringOnline(UInt32 TimeOut)
(01) 2015-04-22 15:29:12 Slp:                         at Microsoft.SqlServer.Configuration.Cluster.WmiClusterResource.Online(Int32 timeout)
(01) 2015-04-22 15:29:12 Slp: ----------------------------------------
We have tried to reinstall the servers multiple times, without result.
Can anyone assist us in this case?
Thanks
Kind Regards
Julian

Hi Darryl,
thanks for your supply.
We don't have an DHCP in the Cloud. System Center DHCP is used for assigning IP addresses and routing inforamtion to the vms.
This works fine for assigning IP addresses to the vms.
At my current point of understanding network virtualisation with system Center, we do not have an alternative to this way of assigning IP addresses.
Kind Regards
Julian

SQL cluster name on a Windows Failover Cluster

Hello,
I am installing a SQL cluster (first timer) using Windows server and SQL (both 2008 R2)
Windows failover cluster is setup and functioning. I am now installing the SQL failover cluster part.
Question: What should be the "SQL server network name", should it be the same as my Windows cluster name or different name ?
Thanks for your help,
Luca

It should be different, this is known as the virtual SQL Server name in earlier versions of SQL Server failover clusters.
SQL Server Network Name —
Specify a network name for the new SQL Server failover cluster. This is the name that is used to identify your failover cluster on the network.
https://msdn.microsoft.com/en-us/library/ms179530.aspx?f=255&MSPPError=-2147217396
This will be the name used to identify your cluster on the network. This is the name that will be available on the
network for the clients to connect SQL instance.
http://www.mssqltips.com/sqlservertip/1709/install-sql-server-2008-on-a-windows-server-2008-cluster-part-3/

Cluster Network 2 is missing from Failover cluster Manager

I have two node Windows 2008 R2 SP1 MS SQL cluster, there was an issue with one node NIC card which was replaced and since then "Cluster Network 2" is not visible in failover cluster manager, also Heartbeat and Public IP nic card of both nodes
are appearing in "Cluster Network 1" container. even though both network public and hearbeat are on differenet subnet, but still cluster detects it as one subnet. Need to know how to bring back "Cluster Network 2"

After replacing NIC, cluster worked fine on other node for couple of days and then cluster services started terminating on both the nodes.
when checked cluster logs found below error.
"ERR [CORE] Node 2: exception caught AlreadyExists(183)' because of 'already exists'(AODBP2DB1 - Local Area Connection)"
Hence to correct this problem, renamed both nodes NIC cards as Public and Private and cluster was started and tested the failover also. but since then only able to see "Cluster Network 1" and all NIC are listed under this container.
Though when looked at cluster validation report, it shows Cluster Network 1 and Cluster Network 2 entries in it
Pasted network section from Cluster Validation report
Network: Cluster Network 1
DHCP Enabled: False
Network Role: Enabled
Prefix
Prefix Length
10.100.18.0
25
Item
Value
Network Interface
Node1 - Public
DHCP Enabled
False
IP Address
10.100.18.11
Prefix Length
25
Item
Value
Network Interface
Node2 - Public
DHCP Enabled
False
IP Address
10.100.18.16
Prefix Length
25
Network: Cluster Network 2
DHCP Enabled: False
Network Role: Internal
Prefix
Prefix Length
10.101.130.0
25
Item
Value
Network Interface
Node1 - Private
DHCP Enabled
False
IP Address
10.101.130.11
Prefix Length
25
Item
Value
Network Interface
Node2 - Private1
DHCP Enabled
False
IP Address
10.101.130.13
Prefix Length
25
Verifying that each cluster network interface within a cluster network is configured with the same IP subnets.
Examining network Cluster Network 1.
Network interface Node1- Public has addresses on all the subnet prefixes of network Cluster Network 1.
Network interface Node2- Public has addresses on all the subnet prefixes of network Cluster Network 1.
Examining network Cluster Network 2.
Network interface Node1- Private has addresses on all the subnet prefixes of network Cluster Network 2.
Network interface Node2- Private1 has addresses on all the subnet prefixes of network Cluster Network 2.
Verifying that, for each cluster network, all adapters are consistently configured with either DHCP or static IP addresses.
Checking DHCP consistency for network: Cluster Network 1. Network DHCP status is disabled.
DHCP status (disabled) for network interface Node1- Public matches network Cluster Network 1.
DHCP status (disabled) for network interface Node2- Public matches network Cluster Network 1.
Checking DHCP consistency for network: Cluster Network 2. Network DHCP status is disabled.
DHCP status (disabled) for network interface Node1- Private matches network Cluster Network 2.
DHCP status (disabled) for network interface Node2- Private1 matches network Cluster Network 2.

Cannot enable SSRT for SQL cluster

Hi Everyone
I'm running DPM 2012 SP1 (Not R2). I've having trouble enabling the self service recovery tool for a SQL cluster.
I can get to the next step when I add a different standalone SQL server, however anything to do with a cluster will not work.
I've been following this link:
http://technet.microsoft.com/en-us/library/jj674322.aspx
Any ideas?

Hi,
try this..
The SQL server instance field expects the following format for a clustered instance.
<Cluster network name>\<SQL virtual name>\<instance name>
The database name field may contain a valid database for that instance or be left blank for all databases in that instance.
To determine the component names for the wizard is to gather the information
from the DPM console. The DPM GUI shows the following for a protected cluster
instance.
Cluster Network Name: SQL Server (INSTANCE1).sqlserver.fourthcoffee.com
sqlv1n1\instance1\master
sqlv1n1\instance1\model
sqlv1n1\instance1\msdb
sqlv1n1\instance1\foo
To configure these databases in the SSRT configuration tool the following would be entered for the
SQL server instance name.
"SQL Server (INSTANCE1).sqlserver.fourthcoffee.com\sqlv1n1\instance1"
Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread. Regards, Mike J. [MSFT]
This posting is provided "AS IS" with no warranties, and confers no rights.

Cluster network name resource 'Cluster Name' failed registration of one or more associated DNS name(s) for the following reason: The handle is invalid.

I'm stuck here trying to figure this error out.
2003 domain, 2012 hyper v core 3 nodes. (I have two of these hyper V groups, hvclust2012 is the problem group, hvclust2008 is okay)
In Failover Cluster Manager I see these errors, "Cluster network name resource 'Cluster Name' failed registration of one or more associated DNS name(s) for the following reason: The handle is invalid."
I restarted the host node that was listed in having the error then another node starts showing the errors.
I tried to follow this site: http://blog.subvertallmedia.com/2012/12/06/repairing-a-failover-cluster-in-windows-server-2012-live-migration-fails-dns-cluster-name-errors/
Then this error shows up when doing the repair: there was an error repairing the active directory object for 'Cluster Name'
I looked at our domain controller and noticed I don't have access to local users and groups. I can access our other hvclust2008 (both clusters are same version 2012).
<image here>
I came upon this thread: http://social.technet.microsoft.com/Forums/en-US/85fc2ad5-b0c0-41f0-900e-df1db8625445/windows-2012-cluster-resource-name-fails-dns-registration-evt-1196?forum=winserverClustering
Now, I'm stuck on adding a managed service account (mas). I'm not sure if I'm way off track to fix this. Any advice? Thanks in advance!
<image here>

Thanks Elton,
I restarted 3 hosts after applying the hotfix. Then I did the steps below and got stuck on step 5. That is when I get the error (image above). There
was an error repairing the active directory object for 'Cluster Name'. For more data, see 'Information Details'.
To reset the password on the affected name resource, perform the following steps:
From Failover Cluster Manager, locate the name resource.
Right-click on the resource, and click Properties.
On the Policies tab, select If resource fails, do not restart, and then click OK.
Right-click on the resource, click More Actions, and then click Simulate Failure.
When the name resource shows "Failed," right-click on the resource, click More Actions, and then click Repair.
After the name resource is online, right-click on the resource, and then click Properties.
On the Policies tab, select If resource fails, attempt restart on current node, and then click OK.
Thanks

Can I change which nic is used for a cluster network when more than one nic on the node is on same subnet?

This cluster has been up and working for maybe a year and a half the way it is. There are two nodes, running Server 2012. In addition to a couple network interfaces devoted to VM traffic each node has:
Management Interface: 192.168.1.0/24
iSCSI Interface: 192.168.1.0/24
Internal Cluster Interface: 192.168.99.0/24
The iSCSI interfaces have to be on same subnet as management interfaces due to limitations in the shared storage. Basically if I segregate it I wouldn't be able access the shared storage itself for any kind of management or maintenance tasks.
I have restricted the iSCSI traffic to only use the one interface on each cluster node but I noticed that one of the cluster networks is connecting the management interface on one cluster node member with the iSCSI interface on the other cluster node member.
I would like for the cluster network to be using the management interface on both cluster node members so as not to interfere with iSCSI traffic. Can I change this?
Binding order of interfaces is the same on both boxes but maybe I did that after I created the cluster, not sure.

Hi MnM Show,
Tim is correct, if you are using ISCSI Storage and using the network to get to it, it is recommended that the iSCSI Storage fabric have a dedicated and isolated network. This
network should be disabled for Cluster communications so that the network is dedicated to only storage related traffic.
This prevents intra-cluster communication as well as CSV traffic from flowing over same network. During the creation of the Cluster, ISCSI traffic will be detected and the network
will be disabled from Cluster use. This network should set to lowest in the binding order.
The related article:
Configuring Windows Failover Cluster Networks
http://blogs.technet.com/b/askcore/archive/2014/02/20/configuring-windows-failover-cluster-networks.aspx
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]

Failover Cluster Network Name Failed and Can't be Repaired

I have an issue that seem to be a different problem than any others have encountered.
I've scoured everything I can find and nothing has fixed my problem.
The problem starts with the common problem of the cluster network name failing on my 2 node server 2012 file server cluster. The computer object was still in AD and appeared to be fine so it was not the common problem of the object
getting deleted somehow. At the time, there was no other object with that name in the recycling bin, so I don't think it was mistakenly deleted and quickly recreated to cover any tracks, so to speak.
Following one guide, I tried to find the registry key that corresponded with the GUID of the object, but neither node in the cluster had it in its registry (which may be part of the problem).
Since it was in the failed state, I tried to do the repair on the object to no avail.
We run a "locked down" DC environment so all computer objects have to be pre-provisioned. They were all pre-provisioned successfully and successfully assigned during cluster creation. The cluster was running with no issues for a month
or so before this problem came up.
When I do a repair on the object while taking diagnostic logs the following 4609 error appears:
The action 'Repair' did not complete. - System.ApplicationException: An error occurred resetting the password for 'Cluster Name'. ---> System.ComponentModel.Win32Exception: Unknown error (0x80005000)
There appears to be a corresponding 4771 error with a failure code 0x18 that comes from the security log of the DC that states there was a Kerberos pre-authentication failure for the cluster network name object (Domain\Clustername$)
I believe this is what is causing the repair failure. All the information I found related to security error 4771 was either a bad credentials given for a user account or the fix was to reconnect the computer to the domain. I can't seem to find
a way to do this with the cluster network name. If there's a way please let me know.
I've tried a number of things, like resetting the object, disabling it, deleting and creating a new object with the same name, deleting that new object and recovering the original, etc...
Can anyone shed some light on what is going on and hopefully how to fix it other than rebuilding the cluster? I'm quite close to just tearing it down and building it back up but am hesitant because this cluster in currently in production...
Any help would be appreciated

Hi,
I don’t find out the similar issue with yours, base on my experience, the 4096 error
often caused by the CSV disk issue, and the 0x80005000 error some time caused by the repetitive computer object in OU. Please check the above related part or run the validate test then post the error information.
Although I do have a CSV, there doesn't seem to be any problems with it and it was running just fine for a month or so before the problem started. I double checked and there is no duplicate computer objects, maybe I don't understand what you mean by
repetitive, could you explain further?
The cluster validates successfully with a few warnings:
Validating cluster resource Name: DT-FileCluster.
This resource is marked with a state of 'Failed' instead of
'Online'. This failed state indicates that the resource had a problem either
coming online or had a failure while it was online. The event logs and cluster
logs may have information that is helpful in identifying the cause of the
failure.
- This is because the cluster name is in the failed state
Validating the service principal names for Name:
DT-FileCluster.
The network name Name: DT-FileCluster does not have a valid
value for the read-only property 'ObjectGUID'. To validate the service principal
name the read-only private property 'ObjectGuid' must have a valid value. To
correct this issue make sure that the network name has been brought online at
least once. If this does not correct this issue you will need to delete the
network name and re-create it.
- This is definitely related to the problem and the GUID probably got removed when we attempted a fix by resetting the object and trying the repair from the failover cluster manager.
The user running validate, does not have permissions to create
computer objects in the 'ad.unlv.edu' domain.
- This is correct, we run a restricted domain. I have a delegated OU that I can pre-provision accounts in. The account was pro-provisioned successfully and was at one point setup and working just fine.
There are no other errors nor warnings.

Cluster Network name resource could not be updated in domain

Hi,
I have the following error and need clarification on the below solution in bold:
Event Id 1206 -
The computer object associated with the cluster network name resource 'Cluster Name' could not be updated in domain 'xxxxx.xxxx'. The error code was 'Password change'. The cluster identity 'ClusterGroup1$' may lack permissions required to update the object.
1 - Move CNO back to the Computers Container
2- Give the Cluster Node Computer Accounts Change Password permission on the CNO
3 - Take the Cluster Name Resource offline
4 - Repair Cluster Name Resource
5 - Bring Cluster Name Resource back online
Firstly, is there any implication?
Secondly if ClusterGroup1$ is my CNO (Cluster Name Object) then is my
cluster node computer account the server nodes in the cluster? E.g. ClusterGroup1$ is the cluster, the nodes are hyperv01 and hyperv02, do I add hyperv01 and hyperv02 to clustergroup1 -- properties -- security?
Thank you.

Hi SPD IT,
If you have pre-stage your cluster object to a specific OU, you needn’t move them to default computer OU, with your current error information it most possible caused by the
lack permission of cluster nodes or some unless GPO applied to cluster nodes, please exclude the cluster from any GPO, then test this issue.
If it does not work please follow this repair action then monitor this issue:
1. Open Failover Cluster manager
2. Select Clustername
3. Under Cluster Core Resources right click on Cluster Name and select Take offline
4. Right click on Cluster Name and select repair.
I’m glad to be of help to you!
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Network protocols are not showing in sql server network configuration manager

Hi,
We are running 64 bit SQL server 2012 SP1 version. Everything was working fine but suddenly SQL server network configuration showing blank.
So please suggest how do I get it back.

Hello,
Could you please try to repair the installation?
http://technet.microsoft.com/en-us/library/cc646006(v=sql.110).aspx
Hope this helps.
Regards,
Alberto Morillo
SQLCoffee.com

Server 2008 R2 Failover cluster network configuration

Hi
We have a customer with a Server 2008 R2 Hyper-V failover cluster. They have 2 cluster networks, "Cluster Network 1" and "Cluster Network 2".
"Cluster Network 1": NIC team on 172.16.1.0/24 for private cluster network communication
"Cluster Network 2": NIC team on 192.168.1.0/24 for production network communication
I can see that "Cluster Network 1" is configured to "Allow cluster network communication on this network" and "Allow clients to connect through this network".
If "Cluster Network 1" is ONLY for communication between the to cluster nodes then I assume the selection in "Allow clients to connect through this network" should be removed?
/Lasse

It will cause a lost network connection for any client that is accessing through that network. Those clients would need to reconnect.
Did you configure both IPs on the cluster resource name that clients are accessing? If you only configured the one you want, there should be no issue. If you configured both, then it is possible some clients might be connected via the private
network.
Another thing you should, and if you have already done this you will most likely not have issues at all, is that you should disable DNS registration on any network you do not want client access coming through. If the clients can only find the resource
through the DNS name registered, that is the way they will be coming in. In my clusters, which often have 7 or more NICs, there is only one with a published DNS record.
. : | : . : | : . tim

Sharepoint 2010 farm Sql cluster

hello,
i have sharepoint farm with 3 server ( Web front , Sql , search server )
can i make sql cluster to sql with 3 sql server or it be must before begin install sharepoint farm
thanks
Nour

Your question isn't very clear but i think i understand.
You have an existing farm with a single SQL server.
You want to upgrade your single SQL server to a clustered SQL installation.
Doing so is not easy, you can't upgrade a single server SQL install to a clustered install as far as I know. You'd need to re-build the SQL server as a single node cluster and add the new servers to make the full cluster before moving the SharePoint databases
over.
In addition you'd need to use SQL Aliases to point to the new clustered SQL address. If you've already used them then that's great, if not you'd need to use the old, single server, address as the Alias address and point it to the cluster.
In short: You can do it later but it's quite tricky and best done before you install SharePoint.

Sql cluster network

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