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Storage Discovery via a host

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Storage Discovery via a host

Discovery can find information about direct-attached storage (DAS), network-attached storage (NAS) and storage area network (SAN) storage units that connect to a host via a local I/O port or host bus adapter (HBA).

Discovery of storage via a host reconciles data and creates relationships between the host's file systems and associated local storage devices. The local storage devices represent the storage available to the host, whether it's directly attached or provided by Fibre Channel or iSCSI. This reconciliation assumes that the storage server has been discovered first.

Discovery collects and creates CIs in the CMDB for the following information:
  • File systems (local and NAS).
  • Disks (both SAN disks and DAS drives).
  • Fibre Channel (FC) HBAs and ports.
  • Linux Volume Manager (LVM) volumes. LVM volume data resides in the Storage Pool [cmdb_ci_storage_pool] table.
  • Veritas Volume Manager disks, subdisks, disk groups, plexes, and volumes.

This diagram shows the relationship of storage devices to a host computer.

Figure 1. Storage relationship to a host