Storage and Paging Section

This section contains the statistics on the use of different kinds of storage by the address space and the different kinds of paging activity for the address space.

Triplet Information

This section is located on the record using the following triplet fields, which are located in the ‘header/self-defining’ section:

Offset: SMF30ROF
Length: SMF30RLN
Number: SMF30RON - Reports the number of storage and paging sections on the current record. Because only one storage and paging section can appear on the record, this field is ‘1’ (if the section exists) or ‘0’ (if it doesn't).

Offsets		Name	Length	Format	Description
0	0	SMF30RSV	2		Reserved. Note that SMF30RGN, formerly a two-byte field at this offset, has been increased to four bytes and moved to the end of the Storage and Paging Section.
2	2	SMF30SFL	1	binary	Storage Flags. If storage was not allocated (job step was flushed), these fields equal zero. Bit Meaning when set 0 V=R is specified. This bit has no meaning for subtype 5 records. 1 IEFUSI changed region limit values for the extended private area 2 IEFUSI set MEMLIMIT value (even if IEFUSI did not change the value). 3 If this bit is on, the following fields contain incomplete data: (SRM could not deliver deltas or values for this interval) `SMF30ERS SMF30KIE SMF30POA SMF30BIA SMF30KOA SMF30POE SMF30BIE SMF30KOE SMF30PSC SMF30BOA SMF30LPI SMF30PSF SMF30BOE SMF30NSW SMF30PSO SMF30CPI SMF30PAI SMF30PST SMF30CPM SMF30PEI SMF30VPI SMF30HPI SMF30PIA SMF30VPO SMF30HPO SMF30PIE SMF30VPR SMF30KIA` 4-7 Reserved.
3	3	SMF30SPK	1	binary	Storage protect key, in the form `xxxx`0000 , where `xxxx` is the key.
4	4	SMF30PRV	2	binary	Largest amount of storage used from bottom of private area, in 1 K units. This storage area includes subpools 0-127, 129–132, 244, 251 and 252. If ADDRSPC=REAL is specified, this field equals the amount of contiguous real storage that was used.
6	6	SMF30SYS	2	binary	Largest amount of storage used from top of private area, in 1K units. This storage area includes the local system queue area (LSQA) and the SWA — subpools 229, 230, 236, 237, 249, and 253-255. If ADDRSPC=REAL is specified, this field equals the amount of storage used that was not from the contiguous real storage reserved for the program.
8	8	SMF30PGI (SMF30PIA)	4	binary	Number of pages that were paged in from auxiliary storage.
12	C	SMF30PGO (SMF30POA)	4	binary	Number of pages that were paged out to auxiliary storage.
16	10	SMF30CPM	4	binary	Number of attempts to read data from an ESO hiperspace that were not satisfied because the data has been deleted.
20	14	SMF30NSW	4	binary	Number of address space swap sequences. (A swap sequence consists of an address space swap-out and swap-in. Logical swap-out and swap-in are not included.)
24	18	SMF30PSI	4	binary	Number of pages swapped in from auxiliary storage to central storage. This field includes: (local system queue area (LSQA), fixed pages, and pages that the real storage manager determined to be active when the address space was swapping in. It does not include page reclaims or pages found in storage during the swap-in process (such as pages brought in by the service request blocks (SRB), started after completion of swap-in Stage 1 processing).
28	1C	SMF30PSO	4	binary	Number of pages swapped out from central storage to auxiliary storage. This field includes: local system queue area (LSQA), private area fixed pages, and private area non-fixed changed pages.
32	20	SMF30VPI	4	binary	Number of VIO page-ins from auxiliary storage to central storage for this step. This field includes page-ins resulting from page faults or specific page requests on a VIO window. It does not include VIO swap-ins or page-ins for the common area.
36	24	SMF30VPO	4	binary	Number of VIO page-outs from central storage to auxiliary storage for this step. This field includes page-outs resulting from specific page requests on a VIO window as well as those pages stolen by the paging supervisor through infrequent use. It does not include VIO swap-outs or page-outs for the common area.
40	28	SMF30VPR	4	binary	Number of VIO reclaims.
44	2C	SMF30CPI	4	binary	Number of common area page-ins (LPA + CSA) from auxiliary storage to central storage.
48	30	SMF30HPI	4	binary	Number of hiperspace page-ins from auxiliary to processor storage.
52	34	SMF30LPI	4	binary	Number of LPA page-ins from auxiliary storage to central storage.
56	38	SMF30HPO	4	binary	Number of hiperspace page-outs from processor to auxiliary storage.
60	3C	SMF30PST	4	binary	Number of pages stolen from this address space.
64	40	SMF30PSC	8	binary	Number of CPU page seconds for this address space, in page millisecond units. (A page millisecond unit equals 1.024 milliseconds.)
72	48	SMF30RGB	4	binary	Private area size in bytes (less than 16 megabytes).
76	40	SMF30ERG	4	binary	Private area size in bytes (greater than 16 megabytes).
80	50	SMF30ARB	4	binary	Maximum virtual storage in bytes allocated from the local system queue area (LSQA) and the SWA subpools (less than 16 megabytes).
84	54	SMF30EAR	4	binary	Maximum virtual storage in bytes allocated from the local system queue area (LSQA) and the SWA subpools (greater than 16 megabytes).
88	58	SMF30URB	4	binary	Maximum virtual storage in bytes allocated from the user subpools (less than 16 megabytes).
92	5C	SMF30EUR	4	binary	Maximum virtual storage in bytes allocated from the user subpools (greater than 16 megabytes).
96	60	SMF30RGN	4	binary	Region size established, in 1K units, rounded up to a 4K boundary. The contents of this field is determined as follows: If the ADDRSPC=REAL parameter is specified in the JCL, the contents of this field equals the amount of contiguous central storage reserved for the program. If the REGION= parameter value in the JCL exceeds 16 megabytes: If the IEFUSI exit changes the region limit or size above 16 megabytes, the contents of this field equals the changed region limit or size Otherwise, the contents of this field equals the REGION parameter value (minimum value of 32 megabytes). If the REGION= parameter value in the JCL equals or is less than 16 megabytes: If the IEFUSI exit changes the region limit or size below 16 megabytes, the contents of this field equals the changed region limit or size Otherwise, the contents of this field equals the REGION parameter value. Note: If both the region limit and size are changed, but do not match, the contents of this field equals the smaller of the changed region limit or size.
100	64	SMF30DSV	4	binary	Amount of user key data space and hiperspace virtual storage (high water mark) used during the step/job (in megabytes). Must be in key 8 or higher, and the creator of the dataspace must be in problem program state. If these two conditions are not true, this field contains zeros.
104	68	SMF30PIE	4	binary	Number of unblocked pages that were paged in from expanded storage.
108	6C	SMF30POE	4	binary	Number of unblocked pages that were paged out to expanded storage.
112	70	SMF30BIA	4	binary	Number of blocked pages that were paged in from auxiliary storage.
116	74	SMF30BOA	4	binary	Number of blocked pages that were paged out to auxiliary storage.
120	78	SMF30BIE	4	binary	Number of blocked pages that were paged in from expanded storage.
124	7C	SMF30BOE	4	binary	Number of blocked pages that were paged out to expanded storage.
128	80	SMF30KIA	4	binary	Number of blocks that were paged in from auxiliary storage.
132	84	SMF30KOA	4	binary	Number of blocks that were paged out to auxiliary storage.
136	88	SMF30KIE	4	binary	Number of blocks that were paged in from expanded storage.
140	8C	SMF30KOE	4	binary	Number of blocks that were paged out to expanded storage.
144	90	SMF30PSF	8	binary	Number of CPU page seconds for the IARVSERV shared central storage frames in use by this address space, in page milliseconds.
152	98	SMF30PAI	4	binary	Number of IARVSERV shared pages that were paged in from auxiliary storage in this address space.
156	9C	SMF30PEI	4	binary	Number of IARVSERV shared pages that were paged in from expanded storage in this address space.
160	A0	SMF30ERS	8	binary	Expanded storage page residency time in page-milliseconds.
168	A8	SMF30MEM	8	binary	MEMLIMIT value in 1MB units as determined at step initialization time, after IEFUSI processing. An increase in the system default memlimit value is not reflected here. The maximum value of this field is '00000FFFFFFFF000'x that is equivalent to MEMLIMIT having no limit.
176	B0	SMF30MES	1	binary	Source of Memlimit, which is one of the following: Value Meaning X'01' MEMLIMIT set by SMF. X'02' MEMLIMIT set explicitly in the JCL with MEMLIMIT parameter on JOB or EXEC statement. X'03' MEMLIMIT is unlimited based on REGION=0 specification. X'04' MEMLIMIT set by IEFUSI (even if IEFUSI did not change the value). X'OA' System provided a default for MEMLIMIT based on REGION=0 specification and a subsequent curtailment of REGION in the IEFUSI exit.
177	B1		7		Reserved.
184	B8	SMF30HVR	8	binary	High water mark for the number of real storage frames that is used to back 64-bit private storage.
192	C0	SMF30HVA	8	binary	High water mark for the amount of auxiliary storage that is used to back 64-bit private storage. This value is a total of the number of paging data set slots and storage-class memory (SCM) blocks.
200	C8	SMF30HVO	8	binary	Amount of 64-bit private storage in bytes that is obtained by this step or job. This includes guarded virtual storage.
208	D0	SMF30HVH	8	binary	High water mark for the number of usable bytes of 64-bit private storage that is obtained by this step or job. This does not include guarded virtual storage.
216	D8	SMF30HSO	8	binary	Amount of 64-bit shared storage in bytes, which this step or job has addressability or access to.
224	E0	SMF30HSH	8	binary	High water mark for the number of usable bytes of 64-bit shared storage, which this step or job has access to.