|
|
|
Source: VCADAA file at the DETAIL timespan
HSMMIG file at the DETAIL timespan
Tape library information (external)
Function: Monitors your users' allocation and use of
Generation Data Groups (GDGs).
The report allows analysis of generation data set
allocation and usage patterns, and detects
potential problems, such as duplicate or missing
generations.
Features: User reports have three levels of summarization--
detail, base name, and data set prefix.
This report is summarized by the GDG Base Name.
The report also provides usage information, such
as the total amount of space allocated to
generation data groups at the installation.
If you are establishing or revising your standards
related to the number of generations that will be
retained, this report can help that process by
allowing you to simulate the effects of using
differing values.
Limits: VSAM data sets cannot be included in this report,
as the GDG structure is not supported in VSAM
environments.
SMS
Issues: Users installing SMS can determine the number of
generations of a GDG that are being kept online.
This is important to know, because the SMS
Management class can be used to control the number
of generations that will be kept online, and the
action to take when older generations "roll off".
COLUMN DESCRIPTIONS
Base GDG Name
This lists the base Generation Data Group (GDG)
name that is summarized on this line of the
report. All generations of this group will start
with this name, suffixed with a 'GnnnnV00' value,
where 'nnnn' represents the generation number.
# of GENS
The number of generations of this GDG that were
found in the data being scanned. For example, if
the following data sets were found in the scanned
data:
PAYROLL.BACKUP.G0045V00
PAYROLL.BACKUP.G0046V00
PAYROLL.BACKUP.G0046V00
PAYROLL.BACKUP.G0048V00
the GDG Base Name would be PAYROLL.BACKUP, and the
value of this column would be 4, indicating four
data sets were found.
Min GEN #
The minimum (oldest) generation number found for
this GDG in the data being scanned. For example,
if the following data sets were found in the
scanned data:
PAYROLL.BACKUP.G0045V00
PAYROLL.BACKUP.G0046V00
PAYROLL.BACKUP.G0046V00
PAYROLL.BACKUP.G0048V00
the GDG Base Name would be PAYROLL.BACKUP, and the
value of this column would be 45, indicating that
generation 45 was the oldest generation found.
Max GEN #
The maximum (newest) generation number found for
this GDG in the data being scanned. For example,
if the following data sets were found in the
scanned data:
PAYROLL.BACKUP.G0045V00
PAYROLL.BACKUP.G0046V00
PAYROLL.BACKUP.G0046V00
PAYROLL.BACKUP.G0048V00
the GDG Base Name would be PAYROLL.BACKUP, and the
value of this column would be 48, indicating that
generation 48 was the most recent generation
found.
Dupe GENS
The number of duplicate generations found for this
GDG in the data being scanned. For example, if
the following data sets were found in the scanned
data:
PAYROLL.BACKUP.G0045V00
PAYROLL.BACKUP.G0046V00
PAYROLL.BACKUP.G0046V00
PAYROLL.BACKUP.G0048V00
the GDG Base Name would be PAYROLL.BACKUP, and the
value of this column would be 1, because
generation 46 is duplicated in the data. Any
value other than zero should be considered a
potential error. But first make sure you do not
have duplicate data being read by the report.
# of Gaps
The number of gaps found in the generation numbers
for this GDG in the data being scanned. For
example, if the following data sets were found in
the scanned data:
PAYROLL.BACKUP.G0045V00
PAYROLL.BACKUP.G0046V00
PAYROLL.BACKUP.G0046V00
PAYROLL.BACKUP.G0048V00
the GDG Base Name would be PAYROLL.BACKUP, and the
value of this column would be 1, because
generation 47 is missing from the data. Any value
other than zero should be considered a potential
error.
# of Vols
The number of unique volumes on which the
generations of this GDG reside. This number is an
indication of how well the different members of a
GDG are distributed across your volumes. Take
note of GDGs that only reside on one volume, as
that could cause a potential loss of all data if
that volume were lost.
Min MB Alloc
The minimum amount of space allocated, expressed
in millions of bytes (megabytes), by the smallest
generation within this GDG.
Max MB Alloc
The maximum amount of space allocated, expressed
in millions of bytes (megabytes), by the largest
generation within this GDG.
Avg MB Alloc
The average amount of space allocated, expressed
in millions of bytes (megabytes), by each of the
generations within this GDG. This is calculated
by dividing the total space allocated by all
generations by the number of generations.
Total MB Alloc
The total amount of space allocated, expressed in
millions of bytes (megabytes), by all of the
generations within this GDG.
Simulated Space Savings - Data Sets Moved
The number of generations within this GDG that
would have been rolled off the system based on the
simulation values coded on the report option
screen. This feature allows you to simulate the
effects of keeping only a certain number of
generations of each GDG online.
Simulated Space Savings - MB Saved
The amount of space, expressed in millions of
bytes (megabytes) that would be released by
causing certain generations within this GDG to be
rolled off the system based on the simulation
values coded on the report option screen. This
feature allows you to simulate the effects of
keeping only a certain number of generations of
each GDG online.
GDG MANAGEMENT AND RETENTION (STGEFE) 7 CA MICS StorageMate - BASE NAME REPORT ABC CORPORATION ----------------------------------------------------- System Identifier=TST1 ----------------------------------------------------- Base GDG Name # Min Max Dupe # of # of Min Max Avg Total +-Simulated Space Savings-+ of GEN GEN GENS Gaps Vols MB MB MB MB Data Sets MB Saved GENS # # Alloc Alloc Alloc Alloc Moved CBM00T.CARDTAPE.NCB00110.MS000IN0 2 1 2 0 0 2 0.0 0.0 0.0 0 0 0.0 CBM00T.CARDTAP2.NCB00110.MS000IN0 1 2 2 0 0 1 0.0 0.0 0.0 0 0 0.0 CBM00T.CBFCSOUT.NCB00110.MS000IN0 1 2 2 0 0 1 0.0 0.0 0.0 0 0 0.0 CBM00T.CBPINEXT.NCB00110.MS000IN0 2 1 2 0 0 2 0.0 0.0 0.0 0 0 0.0 CBM00T.CBPNUNLD.NCB00110.MS000IN0 2 1 2 0 0 2 0.0 0.0 0.0 0 0 0.0 CBM00T.MLERTAPE.NCB00110.MS000IN0 2 1 2 0 0 1 0.0 0.0 0.0 0 0 0.0 CIS00T.BCPRNT00.RPT#0001 1 2 2 0 0 1 0.0 0.0 0.0 0 0 0.0 CIS00T.BCPRNT00.RPT#0002 1 1 1 0 0 1 0.0 0.0 0.0 0 0 0.0 CIS00T.DLDARPGS.ICI00211.MS000IN0 1 3 3 0 0 1 0.1 0.1 0.1 0 0 0.0 CIS00T.DLRPTA00.RPT#0001 2 1 2 0 0 2 0.0 0.0 0.0 0 0 0.0 DAB10P.DCIPTSTB.RPT#B001 1 1 1 0 0 1 0.2 0.2 0.2 0 0 0.0 DCI.PRMST135.DCIM0S0F.FNB1GDG 1 183 183 0 0 1 3.2 3.2 3.2 3 0 0.0 DPS00T.DLCRBUGS.IDP00621.MS000IN0 1 1 1 0 0 1 0.0 0.0 0.0 0 0 0.0 DPS00T.DLRPT000.RPT#0006 3 2 4 0 0 3 0.0 0.0 0.0 0 0 0.0 DPS00T.DLRPT000.RPT#0008 1 4 4 0 0 1 0.0 0.0 0.0 0 0 0.0 DPS00T.DPAAXTGS.IDP00621.MS000IN0 1 2 2 0 0 1 0.0 0.0 0.0 0 0 0.0 DPS00T.DPBULKGS.IDP00621.MS000IN0 3 4 6 0 0 3 11.4 11.4 11.4 34 0 0.0 DPS00T.DPCOFRGS.IDP00621.MS000IN0 3 4 6 0 0 3 0.7 0.7 0.7 2 0 0.0 DPS00T.DPCONRGS.IDP00621.MS000IN0 3 1 5 0 1 2 0.2 28.3 18.9 57 0 0.0 DPS00T.DPCRIMGS.IDP00621.MS000IN0 3 4 6 0 0 2 9.2 9.2 9.2 28 0 0.0 DPS00T.DPDARPGS.IDP00621.MS000IN0 1 3 3 0 0 1 2.2 2.2 2.2 2 0 0.0 DPS00T.DPDLBLGS.IDP00621.MS000IN0 2 4 5 0 0 2 2.8 2.8 2.8 6 0 0.0 DPS00T.DPEXPSGS.IDP00621.MS000IN0 2 4 5 0 0 2 11.4 11.5 11.5 23 0 0.0 DPS00T.DPTRCVCH.NDP00621.MS000IN0 1 9 9 0 0 1 0.0 0.0 0.0 0 0 0.0 DPS00T.DPTRRTV0.RPT#0006 1 4 4 0 0 1 0.0 0.0 0.0 0 0 0.0 DPS00T.FLOATINP.NDP00621.MS000IN0 2 5 6 0 0 2 0.0 0.0 0.0 0 0 0.0 DPS00T.MEMOTRAN.NDP00621.MS000IN0 3 2 4 0 0 3 0.0 0.0 0.0 0 0 0.0 DPS00T.MLTPOFLD.NDP00621.MS000IN0 1 1 1 0 0 1 0.0 0.0 0.0 0 0 0.0 DPS00T.OFFLDINP.NDP00621.MS000IN0 3 5 7 0 0 3 0.1 0.1 0.0 0 0 0.0 DPS00T.PENDUNLD.NDP00621.MS000IN0 3 1 8 0 1 2 0.0 0.0 0.0 0 0 0.0 DPS00T.PEPINPUT.NDP00621.MS000IN0 2 5 6 0 0 2 0.0 0.0 0.0 0 0 0.0 DPS00T.RETTAPE0.NDP00621.MS000IN0 3 6 8 0 0 3 0.0 0.0 0.0 0 0 0.0 DPS00T.RIMINPUT.NDP00621.MS000IN0 3 2 6 0 1 2 0.0 0.0 0.0 0 0 0.0 LNS00T.CILNACPG.ILN00330.MS000IN0 2 3 4 0 0 2 3.7 3.7 3.7 7 0 0.0 LNS00T.COKEYWRD.NLN00330.MS000IN0 3 4 6 0 0 2 1.5 1.5 1.5 5 0 0.0 LNS00T.COUPON00.ILN00330.MS000IN0 3 2 4 0 0 3 5.2 5.2 5.2 15 0 0.0 ----- ---- ---- -------- ------- ------- SYSID 253 5 14 866 6 0.2
Figure 4-38. GDG Management and Retention / Base Name
| Copyright © 2012 CA. All rights reserved. | Tell Technical Publications how we can improve this information |