A virtual name agent creates the names that can replace the Window based servers.
In other words, it adds another virtual computer name to the existing computer name.
If a virtual names are assigned to nodes grouped in a cluster, clients can access the online nodes through these virtual names.
Table of Contents
Adding
There are two way to add a resource which one is select this from a group name and another is select this from a resource type.
In order to use Virtual Name resource, Server service must be running.
Adding in Group
- When add a resource from a group name, select a group → right click → 'Add Resource'.
[Figure] Adding Resource in a group - Select 'Service' from Resource Type lists and click 'Next' button.
[Figure] Select Resource Wizard View - Next steps are same as adding in resource type.
Adding in Resource Type
- ResourceType → Right Click → Click Add Resource
[Figure] Adding Resource in a resource type - This is initial screen for add virtual name resource
[Figure] Adding Virtual Name Resource View - Enter virtual computer name.
[Figure] Enter virtual computer name - As Additional Setting, IP Resource, DNS Server, Domain Name option is available.
[Figure] Additional Setting of Virtual name resource Additional settings screen, you can enter the following options:
IP Resource: Select the IP address resource to bind with virtual computer name.
DNS Server: Enter IP address of DNS server.
Domain Name: Enter domain name.
[Figure] Example of Additional Setting for virtual Name resources- Click 'Finish' button and virtual name resource is added.
[Figure] Adding Virtual name resource is completed
Deleting
Select resource type → right click → delete resource.
Select "Delete Resource".
[Figure] Remove Virtual name resource view
Status
The following table explains the status switching of the MCCS resource caused by a user's command and the status.
The command assumes that it is generated by a user.
Virtual name agent: It manages the Windows based NetBIOS names.
| Status | Agent command | Description | Note |
|---|---|---|---|
Online It can be accessed by a virtual name. | Offline | A virtual name assigned is removed. | |
| Monitoring | Checks the status of server service and the existence of a virtual name. | ||
Offline A virtual name is deleted from the server. | Online | A node is assigned to a unique virtual name. | |
| Monitoring | Checks the status of server service and the existence of a virtual name. | ||
Trouble When the server service is stopped or the resource is switched to offline without using the agent termination command, it is defined as the trouble state. | Online | A node is assigned to a unique virtual name. | |
| Offline | A virtual name assigned is removed. |
Attribute
[Figure] Virtual Name Attribute View
Attribute | Description | Type | Default | Edit | Note |
DNSServer | Defined an IP address of DNS server. Allowed up to two IP addresses separated by commas. If this property is not set up, the A record and CNAME record will not be applied. To use DNS server, the A record or CNAME record must be registered on DNS server before resource is enabled. | IP ADDRESS | O | ||
DomainName | Defined an FQDN which is needed in order to register the A record or CNAME record in the DNS. If thie property is not set, the current domain name of node will be set automatically. | STRING | WORKGROUP | O | |
IPResName | Defined the name of IP address resource which is already configured. | STRING | O | ||
| VirtualName | Defined virtual name which will be access from clients. | STRING | X | 15 upper case letters are used. If a lower case letter is entered, it will be automatically converted into a upper case letter. |
Attribute value of ArgList arguments are the values that are added resources and the value can be changed or viewed through ’Specified Attribute’ list on the detailed information panel.
NetBios Command
Syntax
netbiosutil [option] [name]
Options
This utility support users to easily use the virtual name resource by using the NetBios commands.
It provides the following options. (NetBios name should be entered as an uppercase.)
Option | Description |
-addfile name | Add the NetBios name to the server service. |
-delfile name | Delete the NetBios name registered in the server service. |
| -addmesg name | Add the NetBios name to the messenger service. |
| -delmesg name | Delete the NetBios name registered in the messenger service. |
| -addwork name | Add the NetBios name to the workstation service. |
| -chkfile name | Enter the NetBios name registered in the server service to check the information.
|
| -chkmesg name | Enter the NetBios name registered in the messenger service to check the information. |
| -chkwork name | Enter the NetBios name registered in the workstation service to check the information. |
-flush | Refresh the NatBios table. |
| no option | If there is no option, help words will be displayed. |