Cluster I/O Protocols (CIP) Configuration and Management Manual (H06.16+, J06.05+)

It does not affect other interfaces that are migrating at the same time. The SWITCH command
does not complete until the outcome of the failover is known. If the duplicate-address check
and resource migration may take some time, there could be a delay before SCF issues the
next command prompt.
• Failover migrates nearly all interface resources, but not TCP or SCTP connections. If a TCP or
SCTP connection would be lost during a manual failover, SCF issues a warning and the
operator must confirm that execution is desired, unless the FORCED option is specified.
TRACE Commands
TRACE is a sensitive command that controls trace-data collection for the specified object in a
NonStop system. Trace data is saved in a disk file. You can later read the file by using the Ptrace
utility, which is described in the PTrace Reference Manual.
NOTE: When logging the trace records to a file using the "log" command, PTrace abends if the
log file exceeds 99,999 lines because a file on the NonStop host system can support a maximum
of 99,999 lines only.
All TRACE commands accept these options:
TRACE Command Syntax
{,STOP |,TO file-spec
[,{BULKIO|NOBULKIO}]
[,COUNT count]
[,LOCKSIZE locksize]
[,NOCOLL]
[,PAGES pages
[,RECSIZE size]
[,SELECT {select-option|select-option ...}][,WRAP]}
STOP
Ends the trace currently in progress. A TRACE command must include either the STOP option
or the TO option.
TO file-spec
Starts the trace collection and specifies the name of the file in which to store the results of the
trace. A TRACE command must include either the STOP option or the TO option.
BULKIO | NOBULKIO
Designates whether TRACE should use bulk I/O for tracing. Bulk I/O is faster than conventional
I/O, reducing the number of missing frame errors reported by PTrace, but only one user can
access the file at a time. The default value is BULKIO. BULKIO cannot be used with the NOCOLL
option.
COUNT count
Specifies the number of trace records to be captured. The count is an integer in the range -1
through 32767. If it is omitted or equals -1, records are accumulated until the trace is stopped
with the STOP option.
LOCKSIZE locksize
Designates how much memory space, in units of pages, is locked down at one time. The value
must be less than or equal to the value of PAGES. The default value is the lesser of PAGES and
64 pages.
NOCOLL
Indicates that the trace collector process should not be initiated. The disk file is to be written
to by Guardian. The attributes WRAP and NOCOLL cannot be specified together.
PAGES pages
Designates how much space, in pages, is allocated in the extended data segment used for
tracing. Valid range is from 4 to 1024 pages. The default value is 64 pages.
CIPMAN SCF Commands 275