Error statistics – HP StorageWorks 2.64 Director Switch User Manual
Page 123
Monitoring Products
123
Embedded Web Server User Guide
■
LIPs Detected — A loop initialization primitive (LIP) was detected, which
means the loop was completed.
■
LIPs Generated — A loop initialization primitive was created to initialize a
loop.
Error Statistics
The Error Statistics include these transmit and receive values:
■
Link failures — Number of link failures recorded because a not operational
sequence (NOS), protocol timeout, or port failure was detected.
■
Sync losses — Number of loss-of-synchronizations detected because an
attached device was reset or disconnected from the port.
■
Signal losses — Number of loss-of-signal errors detected because the
attached device was reset or disconnected from the port.
■
Primitive sequence errors — Number of primitive sequence protocol errors
received from an attached device, which indicates a Fibre Channel link-level
protocol violation.
■
Discarded frames — A received frame could not be routed and was
discarded because the frame timed out due to an insufficient buffer-to-buffer
credit, or the destination device was not logged into the product.
■
Invalid transmission words — Number of invalid transmission words from
an attached device. This indicates that a frame or primitive sequence arrived
at the port corrupted.
■
CRC errors — A received frame failed a cyclic redundancy check (CRC)
validation, indicating the frame arrived at the port corrupted. Frame
corruption may be caused by device disconnection, an optical transceiver
failure at the device, a bad fiber cable, or a poor cable connection.
■
Delimiter errors — Number of times that the switch detected an
unrecognized start-of-frame (SOF), an unrecognized end-of-frame (EOF)
delimiter, or an invalid class of service. This indicates that the frame arrived
at the switch’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.
■
Address ID errors — A received frame had an unavailable or invalid Fibre
Channel destination address, or an invalid Fibre Channel source address. This
typically indicates the destination device is unavailable.