Hi Victor,
Are you perhaps recording Type 19 records? If not why don't you post your SMF
parms.
Here is our SMFPRMxx and like most sites I expect we exclude type 19. IIRC
this can still cause delays switching SMF data sets. z/OS R6 improves the
handling of SMF buffers considerably and makes it practical to allow SMF more
than 128M.
SYS1.PARMLIB(SMFPRM00) - 01.10 CHARS 'NOTYP
===> Scroll =
******************************** Top of Data *************************
ACTIVE /* ACTIVE SMF RECORDING */
DSNAME(SYS1.&SYSNAME..MAN1,
SYS1.&SYSNAME..MAN2,
SYS1.&SYSNAME..MAN3,
SYS1.&SYSNAME..MAN4)
NOPROMPT /* DO NOT PROMPT OPERATOR */
REC(PERM) /* TYPE 17 PERM RECORDS ONLY */
MAXDORM(1500) /* WRITE IDLE BUFFER AFTER 30 MIN */
MEMLIMIT(4G) /* ALLOW USE OF STORAGE ABOVE BAR */
BUFSIZMAX(512M) /* 4X DEFAULT IBM BUFFERS */
STATUS(003000) /* WRITE SMF STATS AFTER 1 HOUR */
JWT(0015) /* 522 AFTER 15 MINUTES */
SID(&SYSNAME) /* UNIQUE TO EACH LPAR IN SYSPLEX */
LISTDSN /* LIST DATA SET STATUS AT IPL */
SYS(NOTYPE(4,5,19,20,34,35,40,69,120),INTERVAL(010000),NODETAIL,
EXITS(IEFU83,IEFU84,IEFU85,IEFACTRT,IEFUTL,IEFUSI,IEFUJI,IEFU29))
SUBSYS(STC,EXITS(IEFUSI,IEFU29,IEFU83,IEFU84,IEFU85)),
SUBSYS(TSO,
EXITS(IEFACTRT,IEFUJI,IEFUSI,IEFUTL,IEFU29,IEFU83,IEFU84,IEFU85))
Best Regards,
Sam Knutson, GEICO
Performance and Availability Management
mailto:[EMAIL PROTECTED]
(office) 301.986.3574
"Think big, act bold, start simple, grow fast..."
-----Original Message-----
From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On Behalf Of
Víctor de la Fuente
Sent: Monday, January 16, 2006 8:55 AM
To: [email protected]
Subject: How SMFDUMP works?
Hi all!
I was wondering which is the process of clearing SMF datasets. We are having a
problem, and I'd like to know the process to see which is that problem.
When one SMF dataset is full, it should get into DUMP REQUIRED state to be
cleared. The problem we are having is that, sometimes (randomly in time) the
dataset stays in CLOSE PENDING for several minutes). If the charge of the
system is high, that time is plenty to let SMF fill up all of its 128 MBs, so
we start to lose data. Could some of you tell me when the dataset changes its
state, and why?
Thank you very much!!!!
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