In mainframe platforms (that is, z/OS), limit file names to eight characters.
The following example demonstrates using PERFFILE to create a Performance log file:
ARCMAIN PERFFILE=C:\baruser\ARC_Test_perf.txt
Contents of Performance log: C:\baruser\ARC_Test_perf.txt
BG 12/02/2008 16:37:43 LG 12/02/2008 16:37:43 LOGON TDPID/dbc,; ST 12/02/2008 16:37:46 ST 12/02/2008 16:37:46 copy data tables ST 12/02/2008 16:37:46 (DB1), ST 12/02/2008 16:37:46 release lock, ST 12/02/2008 16:37:46 file=ARCH1; VB 12/02/2008 16:37:47 ARCHIVED AT 12-02-08 13:34:03 VB 12/02/2008 16:37:47 ARCHIVED FROM ALL AMP DOMAINS VB 12/02/2008 16:37:47 UTILITY EVENT NUMBER IN ARCHIVE - 770 VB 12/02/2008 16:37:47 RELEASE:13.00.00.00; VERSION:13.00.00.00; OS 12/02/2008 16:37:47 D "DB1"."" ER 12/02/2008 16:37:47 4 3803 *** Warning 3803:Table 'tb1' already exists. VB 12/02/2008 16:37:50 Starting table "tb1" VB 12/02/2008 16:37:50 Table "tb1" is not a deferred object TB 12/02/2008 16:37:50 12/02/2008 16:39:07 12/02/2008 16:39:07 436,208,086 "DB1"."tb1" VB 12/02/2008 16:39:07 Clearing build flag for index 0. OE 12/02/2008 16:37:47 12/02/2008 16:39:07 D "DB1"."" ST 12/02/2008 16:39:07 ST 12/02/2008 16:39:07 logoff; EN 12/02/2008 16:39:07 4