Novell Doc: OES 2 SP3: Dynamic Storage Technology Administration Guide - Cluster Setup with Manual Login to the Remote Server

D.3 Cluster Setup with Manual Login to the Remote Server

The cluster setup in this section describes how to set up the Novell Client connection to the remote server and define the DST shadow volume for each DST node. The remote volume’s mount point is always active on each of the DST nodes. When the primary pool cluster resource is active on a DST node, DST activates the shadow volume relationship that you defined on that node. When the pool cluster resource is offline or migrated to another server, the DST shadow volume is deactive for that node.

Whenever a DST node is rebooted, the Novell Client connection is broken. You can log in manually to each remote server, or you can put the nwlogin commands in the server startup script so that they happen automatically on reboot.

If the remote server is rebooted, you must manually log in again to the remote server from each DST node in the cluster.

To set up this DST cluster solution:

In iManager, create a dstuser identity and assign the user name as a trustee with the Supervisor right for the remote NSS volume.
If the primary NSS pool cluster resource and volume do not already exist, create a pool cluster resource on the cluster, create an NSS volume on it to use as the primary volume, then configure the cluster resource Preferred Nodes list and the load, unload, and monitoring scripts. Ensure that you specify only DST nodes in the Preferred Nodes list.

For information, see Configuring Cluster Resources for Shared NSS Pools and Volumes in the OES 2 SP3: Novell Cluster Services 1.8.8 Administration Guide for Linux.
For each DST node in the cluster, log in to the remote server and set up the shadow volume relationship:
1. Log in to a DST node as the root user, then open a terminal console.
2. Cluster migrate the primary pool cluster resource to the DST node by entering
```
cluster migrate resource_name node_name
```
  Replace resource_name with the name of the primary pool cluster resource. Replace node_name with the hostname of the DST node.
3. Use the Novell Client for Linux to log in to the remote server and mount the remote NSS volume. At the console prompt, enter
```
nwlogin --server remote_servername_or_IP_address --tree tree_name 
--user dst_username --context username_context --password dst_password
```
  For example, enter
```
nwlogin --server 10.10.10.41 --tree MYCOMPANY_TREE
--user dstuser --context users.context --password novell
```
  If the server hostname is server41 and the remote volume is SHVOL1, the mount path is:
  
  /var/opt/novell/nclmnt/.Servers/SERVER41/SHVOL1
4. In a Web browser, open Novell Remote Manager on the DST node, then log in as the root user.
  
  You must be logged in as the root user in order to have the file system rights necessary to access the Linux path for the mount point of the remote NSS volume.
5. In Novell Remote Manager, select View File Systems > Dynamic Storage Technology Options, click Add Shadow next to the primary NSS volume, then configure the shadow volume.
  - Primary volume: The shared NSS volume.
  - Secondary path: The Linux path of the mount point for the remote secondary NSS volume.
    
    /var/opt/novell/nclmnt/.Servers/<servername>/<volumename>
    
    The path is case sensitive.
6. Repeat Step 3.a to Step 3.e for each DST node in the cluster.
Use the normal load, unload, and monitoring scripts for managing the primary NSS pool cluster resource.