MFE SCF: How to determine SRP usage for a device or for an application

How to determine SRP usage for a device or for an application:

1) This process is a manual calculation procedure. This method is a workaround until the engineering enhancement requests are approved. The enhancements are designed to provide data that makes the SRP usage determination simpler. 

2) The SRP usage calculation requires a calculation of the Standard Allocations counts for source and target volumes. The Shared Owned allocations from the CREATE ONLY of SNAPSHOTs, SNAPSETs, and HardLinks are used to obtain the replicated data. This can be accomplished by collecting these two reports:

The QUERY ALLOC report:
 

EMCU500I QUERY ALLOC LOCAL(UNIT(8010)) DEV(040-042)                                
EMCU060I Thin Allocations on 0001976-00361                      API Ver: 8.40      
EMCU014I Device#      Alloc      Used    Shared   Persist   SRP Name                 
EMCU015I 00000040     30020     30020     30017      N      SRP_0x102             
EMCU015I 00000041        17        17         0      N      SRP_0x102              
EMCU015I 00000042     30020         3     30017      N      SRP_0x102

The QUERY ALLALLOCS report:

The QUERY ALLALLOCS is used when there is more than one pool under an SRP. This can occur when adding devices to an existing SRP, since all devices in a pool have to have the same physical characteristics. In this manner, the two pools' allocations are added together. 
In the following example, pools DG1_C_7 and DG2_C_7 are operating as one for device 0024:
 

EMCU500I QUERY ALLALLOCS         LOCAL(UNIT(8010)) DEV(0024)     
EMCU060I Thin Allocations on 0001976-00361                      API Ver: 8.40   
EMCU015I 00000024     76981                                         DG1_C_7
EMCU015I 00000024    288232                                         DG2_C_7

The QUERY SNAPSHOT with the MLQ(YES) report is used for SNAPVX (Legacy SNAP requires QUERY VOLUME with the MLQ(YES) report). For zDP, can use the QUERY SNAPSHOT with the MLQ(YES) or the EIPINIT program QUERY VDG(vdgname) with SNAPSET parameter.
 

EMCP001I QUERY SNAPSHOT(UNIT(8010) DEV(040-047))
ESNP1AAI   SRC     CUU    VOLSER TGT     CUU    VOLSER NAME                             YYDDD/HH:MM:SS STATUS     ACT 
ESNP1AAI   ----------------------------------------------------------------------------------------------------------
ESNP1AAI   00000040(N/A )        FFFFFFFF(N/A )        BOP8010SEQ1                      20149/11:11:17 CREATE SOFT Y 
ESNP1AAI          UNIQUE TRACKS:                          0000000000                                                 
ESNP1AAI          SRC MODIFIED TRACKS (UNIQUE+SHARED):    0000000000                                                 
ESNP1AAI          TGT MODIFIED TRACKS (UNIQUE+SHARED):    0000000000                                                 
ESNP1AAI          TRACKS TO BE COPIED:                    0000000000                                                 
ESNP1AAI          TIME TO LIVE DDDD/HH:MM:SS:             0000/00:00:00                                              
ESNP1AAI          TIME SINCE CREATION DDDD/HH:MM:SS:      0000/00:01:22                                              
ESNP1AAI          SNAPSHOT ID:                            ADAD0001                                                   
ESNP1AAI          SECURE SNAPSHOT:                        NO                                                         
ESNP1AAI          COPY MODE:                              N/A                                                        
ESNP1AAI          TARGET HOLD:                            N/A                                                        
ESNP1AAI                                                                                                             
ESNP1AAI   -----------------------------------------------------------------------------------------------------------
ESNP1AAI                                                                                                             
ESNP1AAI     TOTAL UNIQUE TRACKS IN REQUEST:                           0000000000000000                              
ESNP1AAI     TOTAL TRACKS TO BE COPIED IN REQUEST:                     0000000000000000                              
ESNP1AAI     TOTAL SRC MODIFIED TRACKS (UNIQUE+SHARED) IN REQUEST:     0000000000000000                              
ESNP1AAI     TOTAL TGT MODIFIED TRACKS (UNIQUE+SHARED) IN REQUEST:     0000000000000000 

3) The SRP usage calculation is calculated by totaling the Used column for a device (or all devices in a job) from the QUERY ALLOC report. Then add that count to the TOTAL UNIQUE TRACKS at the bottom of the Query SNAPSHOT report. Do the count for the CREATE SNAPSHOTs ONLY of that device (or all devices in an application or job).    

Note:  From the QUERY SNAPSHOT report, do not include linked target tracks as these are copies of the CREATE SNAPSHOTs. These tracks are counted in the QUERY ALLOC STD USED for the target devices.

For more details, review the Mainframe Enablers (MFE) product guides for the target release.