RDF System Management Manual for J-series and H-series RVUs (RDF 1.10)

request must wait to be performed until the current lockstep transaction is committed on the backup
system. That could also increase response times.
Lockstep and Auxiliary Audit Trails
You cannot use lockstep processing in an RDF subsystem that is protecting auxiliary audit trails.
Lockstep and Network Transactions
You cannot use lockstep to protect data associated with network transactions because the lockstep
protocol only pertains to operations on a single system. If lockstep is used with network transactions,
consistency between lockstep operations and the distributed application database files cannot be
guaranteed after an RDF takeover.
For a description of lockstep operation event messages, see “Lockstep Gateway Event Messages”
(page 297)
Lockstep Gateway Event Messages
Lockstep gateway messages are sent to the configured EMS event log (collector). You specify the
EMS event log by using the SET RDF command described in Chapter 8 (page 176).
1
I/O completed on an unknown file number.
Cause
While reading $RECEIVE, the lockstep gateway received an I/O completion on an unknown
file number.
Effect
The lockstep gateway stops.
Recovery
This is an internal error, but the gateway is restarted. If the problem persists, contact the Global
Mission Critical Solution Center (GMCSC) or your service provider.
2
A STARTUPMSG argument is missing for the lockstep gateway.
Cause
You are missing either the ENABLE/DISABLE argument, or you have not specified the name of
the RDF extractor.
Effect
The lockstep gateway stops.
Recovery
In your SCF script for starting the lockstep gateway, you must specify either ENABLE or DISABLE
and the RDF extractor process name with the STARTUPMSG attribute. The process name must
not include a node name.
3
The first argument of the STARTUPMSG attribute for your lockstep gateway
was neither ENABLE nor DISABLE.
Cause
You did not specify ENABLE or DISABLE as the first argument of the STARTUPMSG attribute in
your SCF script.
Lockstep and Auxiliary Audit Trails 297