Geographically Dispersed Clustering - All Comments

re: Adding a disk to a Windows 2008 Failover Cluster using cluster.exe commands

Rob — Tue, 17 Nov 2009 16:42:57 GMT

no teme

arthur_pokesh — Fri, 13 Nov 2009 06:40:25 GMT

Dear Author msmvps.com !

Brilliant idea and it is duly

re: New Feature in 2008 R2 - Cluster Shared Volumes

Jiri Formacek — Mon, 02 Nov 2009 20:53:04 GMT

Yes, it is not supported in multi-site, and the behavior of CSV is weird in this scenario: on non-owning node, any process that tries to access CSV, just hangs and it does not start responding until you move CSV ownership to this node.

Reason for this is that DCM computes the topology between nodes according the static information in cluster configuration: it searches for cluster network that has both owning and non-owning node's NIC connected. In case it does not find such network, it mounts the CSV in something like 'Paused' state, so any calls through CSV driver to CSV will end in CSV driver waitng for volume to be ready....

In my opinion, this is not what product team exactly wanted - seems to me that CSV design was done not considering multi-subnet scenarios at all...

re: EMC SRDF/CE for MSCS

Sinu Thomas — Tue, 14 Jul 2009 06:10:01 GMT

The SRDF-CE 3.1/4.0/4.1 will blow your mind away. Be it performance, features, stability or DR capabilities...its a generation ahead.

re: SQL Strikes Again

LJ — Wed, 22 Apr 2009 23:58:49 GMT

John,

Any updates that you are aware of to get around this yet? I read the feedbacks and I'm running into the exact same problem install SQL 2008 on windows 2008 geo cluster. Can't add a second SQL cluster node right now.

re: EMC MV/CE Support for VMware

KC — Mon, 20 Apr 2009 18:16:08 GMT

John - Does EMC plan to release an MV/CE version that supports VMware? Thx

re: SQL 2008 Team - Please Add multi-subnet support!

... — Wed, 11 Mar 2009 07:19:27 GMT

Gute Arbeit hier! Gute Inhalte.

re: SQL 2008

Christian Campa — Fri, 20 Feb 2009 18:06:03 GMT

one our custumers has the same solution implemented into infraestructure, but he needs an automatic solution with sql 2005 or 2008 failover cluster, for move all the instances installed need to apply a manual proccess, and the availabilty of his operation is in risk.

re: SQL 2008

Carlos Silva Zavalza — Fri, 20 Feb 2009 17:56:25 GMT

This is a constraint that has been around since the release of SQL 2008. There are many customers in Mexico that would like to have a geo-cluster SQL solution. I'd like to see this happen!.

Thanks for all John!

re: SQL 2008

Accival — Tue, 17 Feb 2009 23:30:22 GMT

Here we have a Multi-Site Cluster with Windows 2008 and SQL 2005. We are in need for the support of Geographically dispersed clusters for SQL (2005 or 2008)

Please... we really neeed it!!

re: Adding a disk to a Windows 2008 Failover Cluster using cluster.exe commands

John Toner — Mon, 16 Feb 2009 18:04:35 GMT

I'd recommend that we discuss this further on the Cluster support forum here:

social.technet.microsoft.com/.../threads

I would ask that you provide the 'cluster res "Disk x:" /priv' output along with the error message that you are receiving. You should also run a "cluster log /g" command and review the ERR messages in the c:\windows\cluster\reports\cluster.log file.

re: Adding a disk to a Windows 2008 Failover Cluster using cluster.exe commands

Mustapha — Mon, 16 Feb 2009 17:51:35 GMT

Hello,

When I try to bing my disks online in the cluster GUI or by using cluster.exe command:

cluster res "Disk X:" /on

I get an error and disks are still offline.

Any help please ?

Thanks

Clustering Docs, Blogs & Webcasts

Clustering and High Availability — Tue, 10 Feb 2009 08:19:41 GMT

Hi Cluster Fans, The cluster team has been busy working on some great new features for Failover Clustering

Clustering Docs, Blogs & Webcasts

Clustering and High Availability — Tue, 10 Feb 2009 08:18:34 GMT

Hi Cluster Fans, The cluster team has been busy working on some great new features for Failover Clustering

Clustering Docs, Blogs & Webcasts

Clustering and High Availability — Tue, 10 Feb 2009 08:15:22 GMT

Hi Cluster Fans, The cluster team has been busy working on some great new features for Failover Clustering

re: EMC Cluster Enabler Updates

John Toner — Sat, 07 Feb 2009 16:15:28 GMT

No, SQL 2005/2008 does not support multiple subnets. See my posts on the topic here:

msmvps.com/.../default.aspx

re: EMC Cluster Enabler Updates

Will — Sat, 07 Feb 2009 04:15:59 GMT

Is there anyway to use SRDF/CE for SQL 2005 on Windows2008 Cluster to work on Multi-site cluster with different sub-nets?

re: Adding a disk to a Windows 2008 Failover Cluster using cluster.exe commands

John Toner — Tue, 03 Feb 2009 14:14:40 GMT

Just bring it online in the cluster GUI. Alternatively, you could also bring it online using cluster.exe command:

cluster res "Disk X:" /on

re: Adding a disk to a Windows 2008 Failover Cluster using cluster.exe commands

shahbaz ali — Tue, 03 Feb 2009 09:21:58 GMT

Dear I have added the hard disks in my cluster using above commands . I can see them off line now in cluster. Any idea how to make them online.

Regards,

Shahbaz Ali

shahbaz.ali@netsolpk.com

re: Multiple Subnets with Windows 2008 Clusters

ChrisW — Fri, 30 Jan 2009 14:23:31 GMT

In our four-node geocluster environment we have noticed the the time is dependent on arp cache refresh.

More specfically with the network switches\routers. If after a failover the arp cahe is not flushed some clients can not find the resources. Sometimes our network admins need to set a static configuration.

Granted this is with our 2003 servers since it affects network config's I'd expect you might find the same with 2008.