HP StorageWorks Scalable File Share - Manual (Page 244)

Troubleshooting 9–20
9.25.4 Connection and data transfer problems
If a server has connection or data transfer problems over a Voltaire InfiniBand interconnect, check whether
the
rx/tx/error
counters are correct by entering the following command on the server:
# /usr/mellanox/bin/get_pcounter -p 1
If the
rx/tx/error
counters are correct, the output will be as follows. Note that all of the error counters
are set to 0 (zero):
HCA_DEVICE=InfiniHost0
PORT=1
Status
------
Request Status: 0x0
PortSelect: 0x1
CounterSelect: 0x0
Error counters
--------------
PortRcvErrors: 0
PortRcvRemotePhysicalErrors: 0
PortRcvSwitchRelayErrors: 0
PortXmitDiscards: 0
PortXmitConstraintErrors: 0
PortRcvConstraintErrors: 0
LocalLinkIntegrityErrors: 0
ExcessiveBufferOverrunErrors: 0
VL15Dropped: 0
SymbolErrorCounter: 0
LinkErrorRecoveryCounter: 0
LinkDownedCounter: 0
Packet counters
--------------
PortXmitData: 2520
PortRcvData: 2520
PortXmitPkts: 35
PortRcvPkts: 35
If the output is not correct, check that the interconnect cable is firmly connected, and that the cable is not
damaged. If necessary, try replacing the cable.
CAUTION: InfiniBand interconnect cables are very fragile; never fold the cables or step on them.
9.25.5 AD_TAVOR : vvi_mlx_poll_for_completion messages
In systems where an InfiniBand interconnect is used, messages similar to the following may be seen in the
event log when a client node or server disconnects:
2005/08/12 03:30:25 kern i s2 : ERROR : AD_TAVOR :
vvi_mlx_poll_for_completion:(adaptor-tavor.c):Voltaire:
work_completion->completion_status == 5 (MLX: 5)
Such messages are benign and may be ignored.