Active/Passive Drive assignment

Posted on 2012-04-10
Last Modified: 2012-04-30
We just had our network team setup a new Active/Passive cluster composed of two servers in a cluster configuration.  Per there instruction, to logon, RDP to the Clusters virtual system and that will put you on which ever node is currently active (has the token).
When we want to switch the system (fail over), we then go into the cluster manager and set it move to the other node.

Failover Cluster Mgr.   (start drilling down)
 --> ClusterName.DomainName
    --> Services & Applications
        --> ClusterName
            --> (rt Click) Move this Srv or App to Another Node > "Other Node"

Select the "Other Node" and then 'Log-Off'
LogOn, you are now on the ‘other Node’.

But when I do this the drive mapping to the LUN is not there and IPCofig shows the hostname of the previous node.

The solution provided by the network team is to logon to that virtual system and then 'Reboot' that system. Log back on and then we did have a drive mapping to the LUN and Hostname was correct.

Thanks if you are still reading!

Question: Do I have to down the system to get it to fail correctly ? or is there a config option that will cause to go failover without a real failure ?

Question by:sidwelle
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LVL 22

Expert Comment

ID: 37834512
Not sure I'm following, but;  If one RDP's the virtual cluster name that will take one to the active (hosting) node for that virtual name.
One could RDP each of the nodes separately.
RDPing to the correct virtual name is also reguired, the default cluster group has it's own network name (and IP and disk) as does the file share or application that utlizes the cluster.

Author Comment

ID: 37834664
When I RDP into the virtual system and go through the "FailOverClusterMgr", tell it to move to the other node. It should move, map the drive and take on the name of the other node as host name.  The drive does not map, name does not change.

Our network team stated that to get the drive to map on the other node, you down/cycle the active node. this works, but I don't think that I should have to down a node just to see it failOver ?

LVL 22

Expert Comment

ID: 37834858
In FailOverclusterMgr, one should be able to failover the application group (IP, Disk Network name).
Failing over the default cluster group for me never worked correctly from the GUI, I use the command prompt method.

CLUSTER [[/CLUSTER:]cluster-name] GROUP [group-name] [/STAT[US]]
CLUSTER [[/CLUSTER:]cluster-name] GROUP  group-name /MOVE[TO][:node-name] [/WAIT[:timeout-seconds]]

CLUSTER [[/CLUSTER:]cluster-name] GROUP  group-name /MOVE

should be enough.
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Author Comment

ID: 37834968
I can accept that if it works. I will try and follow-up tomorrow.

LVL 22

Expert Comment

ID: 37835010
Should be able to run this command anytime to list where the groups are:

CLUSTER [[/CLUSTER:]cluster-name] GROUP [group-name] [/STAT[US]]

Author Comment

ID: 37839404
That caused the nodes to move, but I don't have a drive mapped to the common data drive on the 2nd node and the host name did not change.

I did like the way that it moved my RDP session to the other node kind of seamless like ?
LVL 22

Accepted Solution

65td earned 500 total points
ID: 37839523
Is the drive mapped to a virtual name as opposed to the node names and is it mapped to the virtual name that holds the shared disk?
If all resources are on one node then one can see data from either the cluster (administrive) virtual name and the file share groups virtual (CAP - client access point).

Author Closing Comment

ID: 37912310
Thanks for following up, I don't believe we ever did get it to work like I think it should, but your comments helped.


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