Discovery collects information about storage area networks from specialized devices,
such as storage arrays and Fibre Channel (FC) switches, and creates specific references between
the tables in the SAN schema.
ServiceNow SAN schema
This diagram shows the tables in the SAN schema and the default references defined between
them.
Multipath SAN storage example
This diagram shows the relationship of SAN storage volumes to a host computer. Storage
accessible to the Linux host consists of two physical fibre channel (FC) disks, mpatha and
mpathb, connected to the host via a multipath FC SAN. The two HBAs on the host interface are
connected with two fibre cables each to separate FC switches for failover capability. The FC
fabric switches are connected to two FC storage processors on the storage server. In this
example, each storage processor is connected to the storage volume's, LUN
1 and LUN 2.
