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Showing posts with label Cluster. Show all posts
Showing posts with label Cluster. Show all posts

Monday, November 30, 2009

The operation failed because either the specified cluster node is not the owner of the group or the node is not possible owner of the group

Hi

If you have this error:

"The operation failed because either the specified cluster node is not the owner of the group or the node is not possible owner of the group..."


You dont have installed the SQL services, Exchange Services and so on in this node.

Maybe you have installed a SQL instance in the first node, but you dont have add the second and thrid ... node again.

Regards
Santos
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Monday, October 26, 2009

SQL2008 Cluster error. 'RequireKerberos is 1'

Hi

I am installing a SQL 2008 cluster in a 3 node guest cluster.

I had this error:
'RequireKerberos is 1'

I followed this Q to solve the problem
We need to stream SQL 2008 dVD with SP1
http://support.microsoft.com/kb/955392/en-us

sAntos
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Sunday, October 4, 2009

Virtual Machine Manager 08 R2 , Hyper-V 1 Cluster error

Hi
It is so funny (or sad).
I testing Virtual Machine Manager 08 R2. VMM08 R2.
I migrated without problem, but the hyper-V 1 cluster (Windows Server 2008) give me this error:
That is, because I have 3 VM in the cluster to do quick migration.
The Hyper-V 2 cluster (Windows Serve 2008 R2) runs well inside VMM08.
It is weird that a new product dont support the first cluster version for VM.
This is a negative point for VMM08 R2.
sAnTos
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Saturday, October 3, 2009

Host Clustering. Guest Clustering. About Blades and Clustering, File Share Majority and fail.

Hi
I have host clustering with guest clustering.
Host clustering with Windows Server 2008 R2 and CSV (Cluster Shared Volumes).
I have guest clustering (a file cluster an a SQL 08 cluster).
I have 2 blade chassis
The cluster has 3 nodes. Why?
The Node 1 and Node 2 are in the first Chassis
The Node 3 is in the second Chassi.
Everybody says that the chassis never fails. But I dont know. Maybe !!!!! ;-)

And
When I installed the therd node, the wizard advise me about the quorum disk,
Wich option is the best?
Well, Althoug No Majority disk is a bad option in the wizard, in my lab is the best option.
I shutdown The node 1 and node 2 (that is, the first chassis is down), and I can continue working with the Node 3 in the chassis 2.
I try to test other options, and I cant setup the cluster because I have 2 nodes out.
sAnTos
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Wednesday, September 30, 2009

Windows 2008 Cluster. Blade, HA and so on

Hi
I have a discussion
I have 2 chassis blade.
The main chassi has a Hyper-V R2 Cluster. I have a SQL08 Cluster in VM.
In the second chassis, I installed a Node3.
If the first chassis fail, I have another chassis with one node.
But , he we are the problem
I have Node and File Share Witness for the cluster.
I have a notice about the cofiguration when I introduced the Node 3.
WICH is the best option?
The first option is not enough. If the first chassis is down. I only have the Node 3.
The last option is a solution, but It is not recommended.
Did Microsoft think in this problem?
I have VM for the cluster, but the Quorum options are wrong!!!!!!!!!!!!
sAnTos
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Sunday, September 20, 2009

A Hyper-V R2 Cluster R2 with a Cluster Shared Volumes (CSV)

Hi
I installed Windows Server 2008 R2.
I would like to test a Hyper-V Cluster with CSV (Cluster Shared Volumes)
I follow this link: (yes, I know , There are many links about that, so I am not going to explain again).
http://blogs.msdn.com/clustering/archive/2009/02/19/9433146.aspx

I upload some pictures with some notes:


The cluster validation was well

I put the VM in the cluster without problems.
I have several problems because the virtual NICs in both nodes havent the same name.
When I fixed the name. Everything went well
The CSV files worked very well. I have a LeftHand iSCSI SAN.
The live migration ran very well. I didnt lost any ping.
sAnTos









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Saturday, January 24, 2009

Windows Server 2008 R2 and SQL 2008 Cluster Error

hi

Yes, I am very daring.

I was installing Windows Serve 2008 R2 and SQL Server 2008 in Cluster.

Windows Server 2008 R2 was well.
Cluster W2008 R2, was well.
SQL 2008 Clusterd was bad, very bad.

At the end of the process I got this error:

Require Kerberos to value 1

I didn´t find a solution
I think is for Windows 2008 R2.

The same lab over Windows 2008 runs well, very well.

sAnTos
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Thursday, January 8, 2009

Hyper-V Performance, Hyper-V Cluster , Virtual Cluster and Iometer

hi
I like this spanish post:
http://blogs.technet.com/davidcervigon/archive/2008/12/17/sobre-clusters-de-hyper-v-y-clusteres-virtuales.aspx

This post speak about Host Clustering and Guest Clustering with Microsoft Hyper-V and Windows 2008.
I did a firts test with Iometer to test disk performance with the Equallogic iSCSI V.2.
I disable DEP for Iometer.

I didnt upload any picture about Iometer because I hope you know this piece of software. ;-)

I configured iSCSI options in the Equallogic iSCSI SAN and the Windows 2008 .
I did installed any software from Equallogic (Dell). I used the Windows 2008 options.
I configured 3 LUNs. I will use only one for the test.


I did the performance test with Iometer in a physical machine.


I started the lab with 1 DC, and 2 servers in Hyper-V.
I configured iSCSI options in the VM server. The configuration is the same. In this virtual machine I configured only one LUN.


I did the performance test with Iometer again.

NOTE: This picture is the performance window from iSCSI Equallogic SAN. I need to study the logs from Iometer ;-).

The iSCIS performance is very similar with the host machine and the Hyper-V machine.
Maybe 6-7% less of performance. I will read the results in detail.

The idea is to set up a lab with Exchange 2007. One lab with physical machines. Another with virtual (Hyper-V) machines.
In this lab , I will run LoadGen (Exchange Stress Tool).

Regards
PS: I will speak with the Storage Dell Consultant to understant the results. ;-)
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