/sys$common/syshlp/CTF$HELP.HLB  —  START  /BLOCKS
  /BLOCKS=n

 	Specifies the size, in blocks, of the trace file to which
 	trace records from the specified tracepoints are written.

 	If a trace file reaches its maximum size, a new version of the
 	trace file is created.

 	The default file size is 200 blocks. The minimum file size is
 	20 blocks.
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