System Wide - LUNs

System Wide LUN reports provide detailed information about the monitored LUNs in your system.

Select [Magnifying glass button] beside the LUN name for which you want to view detailed information.

You can generate and sort the data within LUN reports using the following By Clauses:

Each row in the report gives you information for each LUN. The following table describe the fields available through each of the By Clauses:

Field Name

Description

Storage Subsystem

name/alias of storage subsystem containing a LUN

LUN Name

name assigned to a LUN by a storage subsystem. For IBM FAStT, it is the user-created name that was provided when the LUN was created.

Capacity

total usable storage capacity of a LUN

LUN WWN

WWN (World Wide Name) is a 64-bit identifier that uniquely identifies a LUN in a IBM FAStT storage system.

Overhead

storage space used by mirroring or RAID

Surfaced

indicates whether a LUN is accessible via a front-end port on the storage subsystem

VCM Database

indicates whether a LUN is a VCM database and not usable for a filesystem (EMC only)

Detachable Mirror

Indicates whether a LUN is a BCV (EMC only)

Primary

if synchronized BCV, this field displays the name of the primary LUN

Replication

indicates N/A, NONE, SOURCE, and TARGET.

For EMC, the values can be:

  • NONE - no SRDF replication (normal LUN)
  • SOURCE - SRDF source
  • TARGET - SRDF target

For non-EMC, the value in this field is N/A.

LUN Format

indicates N/A, Fixed Block, or zSeries

LUNs for mainframe use will be labelled as zSeries. All other LUNs are labelled Fixed Block. (This field in not applicable for IBM FAStT subsystems.)

Manufacturer

name of the manufacturer of a storage subsystem

Model

model number of a storage subsystem

Probe Last Run

data/time when a probe was last run against the storage subsystem

See Asset Reporting - System Wide Overview for more information.