HP Surestore 6164 QuickLoop User's Guide - Page 28

Error Handling, Configuration 3, Switch Level Errors

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Note Issue the qlPartner Telnet command on both the master and the slave. Configuration 3 Two switches up to 10 km apart are connected with a long-wave laser to make up a QuickLoop. Note For further information, see the Distributed Fabrics User's Guide, version 2.2. The Telnet commands are the same as in Configuration 2. Note Issue the qlPartner Telnet command on both the master and the slave. Error Handling QuickLoop isolates faulty switches or ports by excluding them from the initialization process. This minimizes 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. Switch Level Errors Switch level errors affect dual-switch quickloops, and include the following conditions: • 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. If an error is detected on a switch, the partner re-initializes to form a separate QuickLoop containing only the devices on the partner switch, 28 QuickLoop User's Guide

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28
QuickLoop User’s Guide
Note
Issue the qlPartner Telnet command on both the master and the slave.
Configuration 3
Two switches up to 10 km apart are connected with a long-wave laser to
make up a QuickLoop.
Note
For further information, see the
Distributed Fabrics User’s Guide,
version 2.2.
The Telnet commands are the same as in Configuration 2.
Note
Issue the qlPartner Telnet command on both the master and the slave.
Error Handling
QuickLoop isolates faulty switches or ports by excluding them from the
initialization process. This minimizes 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.
Switch Level Errors
Switch level errors affect dual-switch quickloops, and include the following
conditions:
•
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.
If an error is detected on a switch, the partner re-initializes to form a
separate QuickLoop containing only the devices on the partner switch,