Service Messages
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Continuous Access Storage Appliance Installation and Maintenance Guide
I/O events
This section describes the messages generated by I/O events between the appliance and the
storage network components, including storage arrays, routers, and switches:
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I/O timeout
An I/O timeout, which is defined as an instance when a confirmation for a data packet
transmission is not received by the appliance within a configured time period, causes the
following error message to appear:
RPIC DPF : IOFD ioto : IO timed out
This message is not recorded in the event log, because additional error checking will classify
the error more precisely. If this issue stems from a hardware error, a log entry describes the
issue.
This message could be caused by an error condition on a networked router or switch. In this
case, the appliance is operating properly, but maintenance on the networked host, router, or
switch may be necessary.
I/O failure
An I/O failure, which is defined as an instance when a data packet transmission cannot be sent
to the desired target, causes the following error message to appear:
RPIC DPF : IOFD iofd : IO failure
This message is not recorded in the event log, because additional error checking classifies the
error more precisely. In the event that this issue stems from a hardware error, a log entry
describes the issue.
This message could be caused by an error condition on a networked host, router, or switch. In
this case, the appliance is operating properly, but maintenance on the networked host, router,
or switch may be necessary. Other possible causes for this error include cable disconnections
or misconfigured network identifiers (such as world wide names or IP addresses), or incorrect
parameters in a SCSI CDB passed from a host.
