IBM System Storage N series OnCommand Unified Manager Operations Manager Administration Guide For Use with Core Package 5.1 GA32-1015-01 Contents Preface ..... 20 Supported features ..... 20 Websites ...... 20 Getting information, help, and service .... 20 Before you call .... 21 Using the documentation ..... 21 Hardware service and support ..... 21 Firmware updates .... 22 How to send your comments ..... 22 Introduction to Operations Manager ... 23 What DataFabric Manager server does ... 23 What a license key is ..... 23 Access to Operations Manager .... 23 Information to customize in the DataFabric Manager server .. 24 Administrator accounts on the DataFabric Manager server .. 24 Authentication methods on the management server ... 25 Authentication with native operating system .. 25 Authentication with LDAP .... 25 Understanding information relevant to 7-Mode and Cluster-Mode environments .... 26 7-Mode: List of tasks and information ... 27 Cluster-Mode: List of tasks and information .. 44 What the discovery process is .... 56 Discovery by the DataFabric Manager server ... 56 What SNMP is ..... 56 When to enable SNMP .... 56 SNMP versions to discover and monitor storage systems .. 57 What the Preferred SNMP Version option is .. 58 How the DataFabric Manager server chooses network credentials for discovery .... 58 Discovery process using SNMPv1 or SNMPv3 .. 59 Monitoring process using SNMPv1 .... 59 Monitoring process using SNMPv3 .... 60 Setting SN
