Upgrading a standalone DS-System to an N1 DS-System
Before you upgrade a standalone DS-System to an N+1 DS-System, you must determine how many nodes you require in the N+1 configuration and prepare the required hardware accordingly.
IMPORTANT: For Windows DS-Systems, if the storage locations are configured as local drives, you must change them to UNC paths in the DS-System dssys.cfg file and in the storage_locations table of the database.
To upgrade a standalone DS-System to and N+1 DS-System:
1. Use the DS-License Server application to configure the DS-System.
• Change the DS-System configuration from Standalone to N+1.
• Configure the IP address(es) for each node in the N+1 configuration. The DS-License Server will validate the license for the DS-System only if a connection is established with one of the IP addresses.
2. Stop the DS-System service or daemon on the standalone DS-System.
3. Install the DS-System software on each node in the N+1 configuration.
a) Ensure all DS-System nodes can access the standalone DS-System database and online storage.
b) During the installation process, select the database instance being used by the standalone DS-System and the existing primary storage location.
4. Update the dssys.cfg file for all the N+1 DS-System nodes and add the following line:
ClusterID : <number>
where <number> is a value from 1 to n that identifies the DS-System node in the N+1 configuration.
5. Update the N+1 configuration file:
<backup_root>/cluster/config
a) In the backup root of the DS-System, create a sub-folder named cluster.
b) In the folder, create a text file called config and add the required lines to this text file in the following format:
IP_of_node_#1 port_number
IP_of_node_#2 port_number
IMPORTANT: Ensure the IP addresses are listed in the same order as the numbering of the N+1 nodes from the dssys.cfg file.
6. Start the N+1 nodes one-by-one to join the N+1 configuration, and then connect to the N+1 DS-System using the DS-Operator.