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Source: VCAVOA file at the MONTHS timespan
Function: This facility allows the storage administrator to
monitor key storage indicators on a month-by-month
basis. These indicators enable the user to
project long-term storage needs, both at the
hardware unit level (volume, volume group, or
device type) and the system level. The indicators
reported by this facility are also useful for
detecting problems with storage resources that are
not being used efficiently. These reports, along
with the Daily DASD Resource Usage reports,
provide both a long view and a short view of
storage capacity and performance problems,
measured at the hardware level.
The Daily/Monthly DASD Resource Usage reports
complement the Daily/Monthly Application Resource
Usage reports to give a complete picture of
storage usage and capacity. While the application
reports tend to measure storage capacity and
consumption at the application level, the DASD
reports take a more hardware-oriented look at
similar data. These reports are useful for tasks
such as planning for new DASD, or balancing
volumes between volume groups or SMS storage
groups. Both sets of reports allow you to measure
and control growth at both the application and
hardware levels.
The types of data that can be selected for
reporting include the number of data sets, the
amount of space being allocated, percentages of
data sets and space in certain categories, the
amount of allocated versus used space, and other
measures of performance and capacity.
Features: Summarization options allow you to analyze the
data based on volume serial number, device type,
volume group or SMS storage group, or to provide
totals for each system.
Data filtering allows you to include data from
selected groups. For example, you can choose to
report on specific volumes, device types, or SMS
storage groups.
Output reports from this facility include tabular
reports, printer plots, or color graphic plots.
When plots are requested, up to nine different
elements can be plotted on the same chart.
SMS
Issues: The ability to summarize by SMS storage groups
makes it easy to monitor the long-term activity
within each of your defined groups. Many of the
elements you can select for reporting are useful
for monitoring an SMS migration effort, or to make
sure SMS is operating correctly after migration is
complete.
COLUMN DESCRIPTIONS
TITLE 4
The fourth report title line on each tabular
report page indicates the indicator or element
that is being reported on that page. Note the
values displayed for each item will vary,
depending on the input sources specified for the
report. Any or all of the following values may
appear:
Data Set Count: Total
Represents the total number of data sets found
in the input data for this particular summary
group.
Data Set Count: SMS-Managed
Represents the number of data sets found in
the input data for this particular summary
group that are managed by SMS.
Data Set Count: Unmanaged
Represents the number of data sets found in
the input data for this particular summary
group that are not managed by SMS.
Data Set Count: Non-VSAM
Represents the number of data sets found in
the input data for this particular summary
group that are not VSAM data sets.
Data Set Count: VSAM
Represents the number of data sets found in
the input data for this particular summary
group that are VSAM data sets.
Space Allocated (MB): Total
Represents the total space allocated, in
megabytes, by all the data sets found in the
input data for this particular summary group.
Space Allocated (MB): Managed
Represents the total space allocated, in
megabytes, by all the data sets found in the
input data for this particular summary group
that are managed by SMS.
Space Allocated (MB): Unmanaged
Represents the total space allocated, in
megabytes, by all the data sets found in the
input data for this particular summary group
that are not managed by SMS.
Space Allocated (MB): Non-VSAM
Represents the total space allocated, in
megabytes, by all the data sets found in the
input data for this particular summary group
that are not VSAM data sets.
Space Allocated (MB): VSAM
Represents the total space allocated, in
megabytes, by all the data sets found in the
input data for this particular summary group
that are VSAM data sets.
Percentage of Data Sets: Managed
Represents the percentage of all the data sets
found in the input data for this particular
summary group that are managed by SMS.
Percentage of Data Sets: Unmanaged
Represents the percentage of all the data sets
found in the input data for this particular
summary group that are not managed by SMS.
Percentage of Data Sets: Non-VSAM
Represents the percentage of all the data sets
found in the input data for this particular
summary group that are not VSAM.
Percentage of Data Sets: VSAM
Represents the percentage of all the data sets
found in the input data for this particular
summary group that are VSAM.
Percentage of Space: Managed
Based on the total space allocated by all the
data sets in this summary group, the
percentage of that space belonging to data
sets that are managed by SMS.
Percentage of Space: Unmanaged
Based on the total space allocated by all the
data sets in this summary group, the
percentage of that space belonging to data
sets that are not managed by SMS.
Percentage of Space: Non-VSAM
Based on the total space allocated by all the
data sets in this summary group, the
percentage of that space belonging to data
sets that are not VSAM data sets.
Percentage of Space: VSAM
Based on the total space allocated by all the
data sets in this summary group, the
percentage of that space belonging to data
sets that are VSAM data sets.
Percentage of Space Used: All Data
Represents the percentage of space allocated
versus used for all the data sets found in the
input data for this particular summary group.
This is calculated by dividing the total
tracks used by the data sets in this group by
the total tracks allocated. Note that HSM
data sets are not included in this
calculation.
Percentage of Space Used: Non-VSAM
Represents the percentage of space allocated
versus used for the non-VSAM data sets found
in the input data for this particular summary
group. This is calculated by dividing the
total tracks used by the non-VSAM data sets in
this group by the total tracks allocated by
the non-VSAM data sets. Note that HSM data
sets are not included in this calculation.
Percentage of Space Used: VSAM
Represents the percentage of space allocated
versus used for the VSAM data sets found in
the input data for this particular summary
group. This is calculated by dividing the
total tracks used by the VSAM data sets in
this group by the total tracks allocated by
the VSAM data sets. Note that DFHSM data sets
are not included in this calculation, because
they are always fully used.
Total Storage Capacity (MB)
Represents the total published storage
capacity for all the volumes in this
particular summary group, expressed in
megabytes.
Total Capacity Allocated (MB)
Represents the total amount of space within
this particular summary group that has been
allocated, and is no longer available for
allocation by other data sets. This value is
expressed in megabytes, and represents the
space allocated by data sets and system areas
such as VTOCs.
Total Capacity Free (MB)
Represents the total amount of space within
this particular summary group that is
available for allocation by other data sets.
This value is expressed in megabytes.
Percentage of Capacity Allocated
Represents the percentage of space within this
particular summary group that has been
allocated, and is no longer available for
allocation by other data sets. This value
represents the space allocated by data sets
and system areas such as VTOCs.
Percentage of Capacity Free
Represents the percentage of space within this
particular summary group that is available for
allocation by other data sets.
Average Fragmentation Index
Represents the average of all the
fragmentation indexes for all the volumes in
this summary group. The fragmentation index
is used as a measurement of space
fragmentation on each volume, with a low
number indicating little fragmentation, and
higher numbers indicating greater amounts of
fragmentation.
Free VTOC Index Records
Represents the total number of free VTOC index
records for all of the volumes in this
particular summary group. For volumes with
indexed VTOCs, this number indicates the
amount of index expansion that may be done
before running out of index space.
SYSID
Unless summarization by SYSID is chosen, this
value appears at the top of each page and
identifies the System Identifier (system) to which
this data applies.
SYSID
Volume
Volume Group
Device Type
The left-most data column on each report line
indicates the summary group to which the values on
that line apply. Depending on the report option
chosen, this summarization will be done by volume,
volume group (SMS storage group), device type, or
system (SYSID). The label at the top of the
column will be one of the values shown above,
depending on the summarization option chosen.
Value mmm yyyy
Indicates the value for this particular element
for this particular summary group during the month
indicated in the column heading. The month is
represented in the format 'mmm yyyy'.
Compound Growth Rate (%)
Reports the monthly compound growth rate (CGR)
calculated for this group using the values from
the months shown on this report. A value of 5.00,
for example, indicates a growth rate of
approximately 5% per month for this group, based
on the monthly values included in this report.
MONTHLY DASD RESOURCE USAGE (STGERH) CA MICS StorageMate ABC CORPORATION Space Allocated (MB): Managed ----------------------------------------------------------- SYSID=IMS8 ------------------------------------------------------------ Volume | Value Value Value Value Value Value Value Value Value Value | Compound Group | Mar Apr May Jun Jul Aug Sep Oct Nov Dec | Growth | 1991 1991 1991 1991 1991 1991 1991 1991 1991 1991 | Rate (%) LARGE | 23446 19504 23594 26118 26561 29217 26771 29376 25415 25919 | 1.12 TECHSUP | 7348 7001 7736 11415 10181 10221 10996 11344 11746 11881 | 5.48 TEMP | 404 488 777 574 1372 1024 427 1205 1090 357 | -1.36 TSO | 31301 32379 36368 40962 43134 46017 44826 44992 40037 35683 | 1.47 -------- --------- --------- --------- --------- --------- --------- --------- --------- --------- --------- SYSID 62499 59372 68475 79069 81247 86478 83020 86918 78289 73840 ========= ========= ========= ========= ========= ========= ========= ========= ========= ========= 62499 59372 68475 79069 81247 86478 83020 86918 78289 73840
Figure 4-45. Monthly DASD Resource Usage / Summary
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