Storage Discovery via SMI-S and CIM Discovery can explore storage devices that contain a Storage Management Initiative Specification (SMI-S) provider that is a specialized Common Information Model (CIM) server. To see the current list of vendors and products conforming to SMI-S as tested by SNIA, see the SNIA website. Other types of storage, such as storage that is attached via a host, VM storage that is available on VMware ESX servers, and storage for Kernel VM (KVM), use a separate set of probes and sensors. Discovery collects information about storage area networks (SAN) and network-attached storage (NAS) from specialized devices, such as storage arrays and Fibre Channel (FC) switches. Discovery collects and creates CIs in the CMDB for the following information items: Array disks, pools, and volumes Fibre Channel HBAs, ports, and controllers FC exports Fabrics, including endpoints, zoning, and switches Dependencies between storage sub-components Data collected Discovery uses the following tables and probes to gather information about storage devices that are managed by a SMI-S provider. Table 1. Data Collected Table Probe Disk [cmdb_ci_disk] SMI - Storage Server Fibre Channel Export [cmdb_ci_fc_export] SMI - Storage Server Fibre Channel Port [cmdb_ci_fc_port] SMI - Storage Server SAN Export [cmdb_ci_san_export] SMI - Storage Server Storage Controller [cmdb_ci_storage_controller] SMI - Storage Server Storage Export [cmdb_ci_storage_export] SMI - Storage Server Storage File Share [cmdb_ci_storage_fileshare] SMI - Array - File Shares Storage Pool [cmdb_ci_storage_pool] SMI - Storage Server Storage Server [cmdb_ci_storage_server] CIM - Identity Storage Switch [cmdb_ci_storage_switch] CIM - Identity Storage Volume [cmdb_ci_storage_volume] SMI - Storage Server Storage Device [cmdb_ci_storage_device] SMI - Storage Server Storage Area Network [cmdb_ci_san] SMI - Fabric SAN Connection [cmdb_ci_san_connection] SMI - Fabric SAN Endpoint [cmdb_ci_san_endpoint] SMI - Fabric SAN Fabric [cmdb_ci_san_fabric] SMI - Fabric SAN Zone [cmdb_ci_san_zone] SMI - Fabric SAN Zone Alias [cmdb_ci_san_zone_alias] SMI - Fabric SAN Zone Alias Member [cmdb_ci_san_zone_alias_member] SMI - Fabric SAN Zone Member [cmdb_ci_san_zone_member] SMI - Fabric SAN Zone Set [cmdb_ci_san_zone_set] SMI - Fabric Requirements A CIM server using SMI-S 1.5 or later. NAS and SAN systems from major vendors such as EMC, Hitachi, HP, and NetApp. SAN storage devices must use FC. FC switches from major vendors such as Brocade and Cisco. The CIM credentials must be available for SMI-S configuration. The CIM credentials can be different than the credentials for the system hosting the CIM server. The CIM user requires the administrator role. Note: Because the SMI-S Provider caches storage device information, the Discovery query to the provider does not affect storage device performance. CIM Discovery architectureCIM probes can explore any device based on the Common Information Model (CIM) by querying a CIM server, also referred to as a CIMOM - Common Information Model Object Manager. By default, Discovery uses CIM probes to explore storage systems as well as to get the serial numbers of ESX servers.How CIM Discovery worksThis is the processing flow for classifying Common Information Model (CIM) storage systems.Configure Discovery for a standalone storage deviceUse this procedure for configuring a standalone storage device with the required SMI-S Provider for Discovery.Data collected by Discovery on storage devicesDiscovery identifies and classifies information about storage devices.