HP Surestore 64 fw 05.01.00 and sw 07.01.00 - Director Product Manager - User - Page 109
Sync losses, Port Card View, Signal losses, Primitive sequence errors, Discarded frames - bit
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Monitoring and Managing the Director ■ 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 displays 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 displays 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 displays 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 incident. If one or more invalid transmission words are detected in 12 separate 1.5-second samples within five minutes, a bit-error threshold link incident is generated. ■ CRC errors-A received frame failed a cyclic redundancy check (CRC) validation, indicating the frame arrived at the director's port corrupted. Frame corruption may be caused by device disconnection, an optical transceiver failure at the device, a bad fiber optic cable, or a poor cable connection. ■ Delimiter errors-The number of times that the director detected an unrecognized start-of-frame (SOF) delimiter, an unrecognized end-of-frame (EOF) delimiter, or an invalid class of service. This indicates that the frame arrived at the director's port corrupted. This corruption can be due to plugging/unplugging the link, bad optics at either end of the cable, bad cable, or dirty or poor connections. Moving the connection around or replacing cables can isolate the problem. Director Product Manager User Guide 109
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