When an external storage system is connected to your storage system and is supported with the generic UVM profile, the following support conditions exist.
- Vendor name that corresponds to the external storage system is displayed.
- Product name is displayed as (generic).
Note: If multiple generic storage systems of the same vendor are connected, they are displayed as a single storage system. As a result, if Disconnect External Storage Systems or Reconnect External Storage Systems is run for generic storage systems, all the generic storage system volumes are disconnected or reconnected. For disconnecting or reconnecting a particular generic storage system volume, the best practice is to run the command in the external volume unit rather than the external storage system unit.
- Serial number is not displayed.
- Volume Properties (device information). LUN assigned to the path with the highest priority is displayed.
- Path Mode and Load Balance
Mode. Load Balance Mode is set to Disable by default.
Three Path Mode settings are available:
- Normal Round-robin (For Multi Path)
- Extended Round-robin (For Multi Path)
- Disable (For Single Path and ALUA)
By default, Load Balance Mode is set to Disable for the generic UVM profile. As a result, UVM uses Single Mode (Active/Passive). If the attached external storage supports Multi pathing (Active/Active), the Load Balance Mode setting must be changed to Extended Round-robin or Normal Round-robin.
The Load Balance Mode can be changed in the Add External Volumes window of Device Manager - Storage Navigator.
Note: If you need a profile that models your specific storage system, contact
customer support.
Hitachi Vantara will gather the required information and might provide the requested profile in a microcode update. Upgrading to the new microcode will allow the
Universal Volume Manager to display the vendor name, product name, serial number, and path mode of the external volumes.