HP StorageWorks 2/140 - Director Switch, Service Manual

Page: 174 / 396

Repair Information
174 Director 2/140 Service Manual
— Primitive sequence errors—Incorrect primitive sequences are received
from an attached device, indicating Fibre Channel link-level protocol
violations. At the Hardware View, a yellow triangle displays to indicate
a link incident.
— Discarded frames—Received frames could not be routed and were
discarded because the frame timed out (insufficient buffer-to-buffer
credit) or the destination device was not logged in to the director.
— Invalid transmission words—Several transmission words were received
with encoding errors, indicating an attached device is not operating in
conformance with the Fibre Channel specification.
— CRC errors—Received frames failed CRC validation, indicating the
frames arrived at the director 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—Received frames had frame delimiter errors,
indicating the frame arrived at the director 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.
— Address ID errors—Received frames had unavailable or invalid Fibre
Channel destination addresses, or invalid Fibre Channel source addresses.
This typically indicates the destination device is unavailable.
— Frames too short—Received frames were less than the Fibre Channel
minimum size, indicating the frame arrived at the director 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.
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Operational statistics—These entries provide information about port
operation, including:
— Offline sequences received and transmitted.
— Link resets received and transmitted.
— LIPs generated and detected.
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Traffic statistics—These entries provide information about port traffic,
including:
— Percent link utilization (receive and transmit).
— Fibre Channel frames received and transmitted.
— Four-byte words received and transmitted.