HP StorageWorks Fabric OS 5.0.0 Fabric Watch User Guide (AA-RW1TA-TE, May 2005)

Fabric Watch concepts24
Fabric
Reconfiguration
Tracks the number of reconfigurations of the fabric. Fabric
reconfiguration occurs when:
• Two fabrics with the same domain ID are connected.
• Two fabrics are joined.
• An E_Port has gone offline.
• A principal link has segmented from the fabric.
Loss of E_Port Tracks the number of times that an E_Port goes down. E_Ports go
down each time you remove a cable or an SFP (where there are SFP
failures or transient errors).
Segmentation
Changes
Tracks the cumulative number of segmentation changes. Segmentation
changes occur due to:
• Zone conflicts.
• Incompatible link parameters. During E_Port initialization, ports
exchange link parameters, and incompatible parameters result in
segmentation. This is a rare event.
• Domain conflicts.
• Segmentation of the principal link between two switches.
SFP State Changes Indicates whether the state of the SFP is normal or faulty, on or off. A
faulty or off state means that you must reinsert, turn on, or replace the
SFP. Fabric Watch monitors only Digital Diagnostic SFP.
Zoning Changes Tracks the number of zone changes. Because zoning is a security
provision, frequent zone changes might indicate a security breach or
weakness. Zone change messages occur whenever there is a change
in zone configurations.
Table 5 Fabric class sreas (continued)
Area Description