You can upgrade to the latest version of System Manager from the earlier versions. After the upgrade, you can continue to manage the storage systems that you were managing with the earlier versions.
There is no upgrade path from System Manager 1.x to the current version of System Manager. However, you can install the current version of System Manager even if System Manager 1.x is already installed in your system. Both System Manager 1.x and System Manager 3.x versions can coexist in the same system.
You can launch System Manager and start managing your storage systems.
If you are using both System Manager 1.x and System Manager 3.x versions, then the storage system credentials are not migrated. Therefore, you must provide the credentials before you can use System Manager to manage your storage systems.
If you are upgrading from System Manager 2.x, then the storage system credentials are migrated and you need not provide the credentials.