Error Handling; Switch Level Errors; Port Level Errors - HP StorageWorks MSA 2/8 - SAN Switch User Manual

Error Handling

QuickLoop isolates faulty switches or ports by excluding them from the
initialization process. This allows minimization of the impact of a faulty looplet or
switch on normal QuickLoop operations, and is particularly important for
QuickLoops that contain multiple looplets distributed across two switches.
Topics in this section include:

Switch Level Errors

Switch-level errors that can affect dual switch QuickLoops, include the following
conditions:
If one of the above errors is detected on a switch, the partner re-initializes to form
a separate QuickLoop containing only the devices on the partner switch, creating
two QuickLoops. If the error condition is removed, the QuickLoops are
re-initialized to form a single QuickLoop.

Port Level Errors

Port-level errors include the following:
If an error is detected on a looplet, the QuickLoop is re-initialized with the looplet
excluded. The error condition is monitored, and if the condition is removed, the
looplet is added back to the QuickLoop.
QuickLoop Fabric Assist Version 3.1.x User Guide
Switch Level Errors
Port Level Errors
No switch with the configured partner switch's WWN can be found in the
fabric.
No response is received from the partner switch during the initial handshake.
Inconsistent responses are received from the partner switch.
Responses are not received in time during QuickLoop initialization.
Any physical level errors occur, such as loss of synchronization or laser fault.
The frequency of LIPs received from a port exceeds a threshold.
A port fails to become the Loop Initialization Master within a time-out period
after LIPs are either received from or sent to the port.
A port does not receive a loop initialization sequence back within a time-out
period after the sequence is sent.
Using QuickLoop
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