HP Surestore 64 HP Surestore Director FC-64 Product Manager User's Guide - Page 111

Monitoring and Managing the Director • Link failures A link failure was recorded in response to a not operational sequence (NOS), protocol timeout, or port failure. At the Port Card View, a yellow triangle appears to indicate a link incident, or a blinking red and yellow diamond appears to indicate a port failure. • Sync losses A loss of synchronization was detected because the attached device was reset or disconnected from the port. At the Port Card View, a yellow triangle appears to indicate a link incident. • Signal losses A loss of signal was detected because the attached device was reset or disconnected from the port. At the Port Card View, a yellow triangle appears to indicate a link incident. • Primitive sequence errors An incorrect primitive sequence was received from the attached device, indicating a Fibre Channel link-level protocol violation. At the Port Card View, a yellow triangle appears to indicate a link incident. • Discarded frames A received frame could not be routed and was discarded because the frame timed out (insufficient buffer-to-buffer credit) or the destination device was not logged into the director. • Invalid transmission words The number of times that the director detected invalid transmission words from the attached device. This indicates that a frame or primitive sequence arrived at the director's port corrupted. This corruption can be due to the attached device performing a reset, plugging or unplugging the link, bad optics at either end of the cable, bad cable, or a dirty or poor connection. Moving the connection around or replacing cables can isolate the problem. Some number of invalid transmission words are expected and acceptable. Invalid transmission words within a frame are used to produce the bit-error threshold link Performance View 95