Adding Cluster Resources

Red Hat Cluster Suite: Configuring and Managing a Cluster
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# 3.9. Adding Cluster Resources

To specify a device for a cluster service, follow these steps:

1. On the Resources property of the Cluster Configuration Tool, click the Create a Resource button. Clicking the Create a Resource button causes the Resource Configuration dialog box to be displayed.

2. At the Resource Configuration dialog box, under Select a Resource Type, click the drop-down box. At the drop-down box, select a resource to configure. The resource options are described as follows:

   GFS

     Name — Create a name for the file system resource.

     Mount Point — Choose the path to which the file system resource is mounted.

     Device — Specify the device file associated with the file system resource.

     Options — Options to pass to the `mkfs` call for the new file system.

     File System ID — When creating a new file system resource, you can leave this field blank. Leaving the field blank causes a file system ID to be assigned automatically after you click OK at the Resource Configuration dialog box. If you need to assign a file system ID explicitly, specify it in this field.

     Force Unmount checkbox — If checked, forces the file system to unmount. The default setting is unchecked.

   File System

     Name — Create a name for the file system resource.

     File System Type — Choose the file system for the resource using the drop-down menu.

     Mount Point — Choose the path to which the file system resource is mounted.

     Device — Specify the device file associated with the file system resource.

     Options — Options to pass to the `mkfs` call for the new file system.

     File System ID — When creating a new file system resource, you can leave this field blank. Leaving the field blank causes a file system ID to be assigned automatically after you click OK at the Resource Configuration dialog box. If you need to assign a file system ID explicitly, specify it in this field.

     Checkboxes — Specify mount and unmount actions when a service is stopped (for example, when disabling or relocating a service):

     - Force unmount — If checked, forces the file system to unmount. The default setting is unchecked.

     - Reboot host node if unmount fails — If checked, reboots the node if unmounting this file system fails. The default setting is unchecked.

     - Check file system before mounting — If checked, causes `fsck` to be run on the file system before mounting it. The default setting is unchecked.

   IP Address

     IP Address — Type the IP address for the resource.

     Monitor Link checkbox — Check the box to enable or disable link status monitoring of the IP address resource

   NFS Mount

     Name — Create a symobolic name for the NFS mount.

     Mount Point — Choose the path to which the file system resource is mounted.

     Host — Specify the NFS server name.

     Export Path — NFS export on the server.

     NFS and NFS4 options — Specify NFS protocol:

     - NFS — Specifies using NFSv3 protocol. The default setting is NFS.

     - NFS4 — Specifies using NFSv4 protocol.

     Options — NFS-specific options to pass to the `mkfs` call for the new file system. For more information, refer to the nfs(5) man page.

     Force Unmount checkbox — If checked, forces the file system to unmount. The default setting is unchecked.

   NFS Client

     Name — Enter a name for the NFS client resource.

     Target — Enter a target for the NFS client resource. Supported targets are hostnames, IP addresses (with wild-card support), and netgroups.

     Read-Write and Read Only options — Specify the type of access rights for this NFS client resource:

     - Read-Write — Specifies that the NFS client has read-write access. The default setting is Read-Write.

     - Read Only — Specifies that the NFS client has read-only access.

     Options — Additional client access rights. For more information, refer to the exports(5) man page, General Options

   NFS Export

     Name — Enter a name for the NFS export resource.

   Script

     Name — Enter a name for the custom user script.

     File (with path) — Enter the path where this custom script is located (for example, `/etc/init.d/userscript`)

   Samba Service

     Name — Enter a name for the Samba server.

     Work Group — Enter the Windows workgroup name or Windows NT domain of the Samba service.

     | Note
     | When creating or editing a cluster service, connect a Samba-service resource directly to the service, not to a resource within a service. That is, at the Service Management dialog box, use either Create a new resource for this service or Add a Shared Resource to this service; do not use Attach a new Private Resource to the Selection or Attach a Shared Resource to the selection.

3. When finished, click OK.

4. Choose File => Save to save the change to the `/etc/cluster/cluster.conf` configuration file.

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