FW V06.XX/HAFM SW V08.02.00 HP StorageWorks Director Element Manager User Guide (AA-RTDUC-TE, July 2004)

Monitoring and managing the Director
102 Director Element Manager User Guide
■ Busied Frames—The number of F_BSY frames generated by this F_Port
against Class 2 frames. This can occur if frames are received before the switch
completes initialization or if the switch is servicing so many requests that it
can not process a new request. The port generates frames if the switch is not
ready to accept commands. This may indicate temporary congestion.
■ Rejected Frames—The number of F_RJT frames generated by this F_Port
against Class 2 frames.
These frames usually occur because of attached device errors. The device is
expected to correct the error based on the reject code, then retry its request. If
the device is able to recover, there is no cause for concern. If not, further
troubleshooting may be necessary. There are no thresholds for this value.
Typically, this occurs because the destination is not available due to the
device’s action.
■ Four-Byte Words Rx—The number of four-byte words received.
■ Four-Byte Words Tx—The number of four-byte words transmitted.
Class 3 Statistics
The Class 3 statistics include:
■ Received Frames—The number of Class 3 frames received by this F_Port
from its attached N_Port.
■ Transmitted Frames—The number of Class 3 frames transmitted by this
F_Port to the attached N_Port.
■ Discarded Frames—The number of Class 3 frames discarded, including
multicast frames with bad destination identifiers (D_IDs).
The director increments this count when it discards a frame that cannot be
routed. This occurs most frequently when a destination becomes unavailable
without the source realizing the destination is unavailable. There are no
thresholds for this value. Typically, this occurs when the destination is not
available due to the destination device’s action.
■ Four-Byte Words Rx—The number of four-byte words received.
■ Four-Byte Words Tx—The number of four-byte words transmitted.