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Source: VCAVOA file at the DETAIL timespan
HARDVA file at the DAYS timespan
Function: Concisely summarizes performance and capacity
information at the volume group level. This
information is reported for each volume and for
the entire volume group.
Many installations tend to group volumes with
similar attributes and functions. This pooling
can be done manually, or with automated software
products. Regardless of the method chosen, this
report makes it easier to monitor and run these
groups, as it reports at both the individual
volume and the group level. This makes it easy to
monitor the performance and availability of the
entire group, or to detect problems with
individual volumes in a group.
Users planning for products that do automatic
volume pooling can use this report to simulate
various groupings in order to find the combination
that provides optimum performance and
availability.
Features: For SMS users, grouping for this report is
automatically done based on the storage group
assigned to each volume.
For non-SMS users, grouping is done by means of a
volume table that is created by the StorageMate
product and maintained by you.
Even after volume pooling is implemented, both SMS
and non-SMS users can use this volume table to
simulate proposed changes before they are made.
Two different CA MICS files are combined to
produce this report; one provides space
information and the other provides performance
information. The HARDVA file can be filtered at
the hour or zone level so that the performance
information reflects a specific time period.
SMS
Issues: Prior to SMS implementation, this report can be
used to plan and simulate your SMS storage groups.
After implementation, the report is useful in
monitoring and tuning these same groups, and to
simulate proposed changes to the groups.
COLUMN DESCRIPTIONS
Volume Group
The volume group to which the information that
follows will apply. Volume group is determined
automatically for SMS users, as it is the same as
the SMS storage group. For non-SMS users, volumes
can be assigned to volume pools (at least for
reporting purposes) by specifying a Volume Group
Table name on the report options screen.
Device Address
The physical address of an I/O device.
C.U. Path
The control unit path (MVS/XA users) or logical
channel (non-XA users) through which this volume
is attached to the I/O subsystem. For some volume
pools, it is suggested that volumes in the pool be
connected through several paths, to reduce the
impact of a hardware failure. For other volume
groups, it may be better to isolate the path
connections to a smaller group.
Volume Serial Number
The volume serial number of the storage medium.
Device Type
The type of I/O device.
Frag. Index
A measure of how fragmented the allocated space is
on the current volume.
Total Data Sets
The total number of data sets residing on this
volume.
Non-VSAM Data Sets
The number of Non-VSAM data sets residing on this
volume.
VSAM Data Sets
The number of VSAM data sets residing on this
volume.
Total Tracks Allocated
The total number of tracks allocated by all the
data sets on this volume.
Non-VSAM Tracks Allocated
The number of tracks allocated by the Non-VSAM
data sets on this volume.
VSAM Tracks Allocated
The number of tracks allocated by the VSAM data
sets on this volume.
Free Tracks
The amount of space on this volume that is
available for allocation by data sets.
Percent Free
The percent of space that is available for
allocation on this volume.
Average I/O Rate
The average number of I/O requests per second
being received by this volume.
Average Response Time
The average time a user of this volume waits, in
thousandths of a second (milliseconds), for an I/O
request to complete.
VOLUME GROUP CONFIGURATION (STGEHA) 1 CA MICS StorageMate - DETAIL ABC CORPORATION ---------------------------------------- System Identifier=SYS7 / Volume Group=(NONE) -------------------------------------------- Device C.U. Volume Device Frag. +---- Data Sets ----+ +-- Tracks Allocated --+ +-- Free --+ +- Average -+ Address Path Serial Type Index Total Non- VSAM Total Non- VSAM Tracks Per- I/O Response Number VSAM VSAM cent Rate Time 140 0001 WORK41 3380 0.314 60 59 1 8069 8066 3 5061 38% 2.42 22.3 251 0002 IPL4BB 3380 0.392 127 127 0 12930 12930 0 329 2% 0.13 16.4 252 0002 WORK44 3380 0.284 41 40 1 7334 7331 3 5865 44% 0.62 22.1 255 0002 WORK45 3380 0.196 40 39 1 4020 4017 3 9179 69% 1.00 22.6 25B 0002 WORK46 3380 0.114 37 36 1 3881 3878 3 9093 70% 0.68 23.4 25E 0002 WORK47 3380 0.226 33 32 1 3655 3652 3 9477 72% 0.62 21.1 25F 0002 WORK48 3380 0.145 30 29 1 4886 4883 3 8193 62% 0.73 22.5 322 0003 WORK42 3380 0.222 59 58 1 8350 8347 3 4773 36% 4.29 19.3 5A0 000B WORK43 3380 0.264 66 65 1 3837 3834 3 9422 71% 2.63 19.9 ---- ------ ------ ------ ------ ------ ------ ------ ------ ---- ------ ------ 009 Volumes 0.240 493 485 8 56962 56938 24 61392 52% 13.11 20.8 ---------------------------------------- System Identifier=SYS7 / Volume Group=CICS-PRD -------------------------------------------- Device C.U. Volume Device Frag. +---- Data Sets ----+ +-- Tracks Allocated --+ +-- Free --+ +- Average -+ Address Path Serial Type Index Total Non- VSAM Total Non- VSAM Tracks Per- I/O Response Number VSAM VSAM cent Rate Time 143 0001 LNR902 3380 0.948 351 348 3 12876 12710 166 338 3% 0.22 35.3 147 0001 LNR904 3380 0.805 248 245 3 12679 12358 321 535 4% 0.81 24.1 14B 0001 LNR906 3380 0.793 202 201 1 12850 12847 3 364 3% 0.36 24.1 14D 0001 LNR907 3380 0.689 198 197 1 12750 12735 15 464 3% 0.56 27.1 14F 0001 LNR908 3380 0.803 345 339 6 12456 12327 129 758 6% 0.32 23.0 241 0002 LNR909 3380 0.652 159 149 10 12521 12034 487 693 5% 0.73 22.7 5A2 000B LNR903 3380 0.950 514 513 1 13081 13066 15 133 1% 0.43 35.5 5A4 000B LNR901 3380 0.896 558 555 3 12700 12246 454 544 4% 0.58 27.8 5B2 000B LNR900 3380 1.086 509 504 5 12970 12785 185 274 2% 0.39 22.5 5B6 000B LNR905 3380 0.674 343 332 11 12212 11953 259 1002 8% 0.44 20.7 ---- ------ ------ ------ ------ ------ ------ ------ ------ ---- ------ ------ 010 Volumes 0.830 3427 3383 44 127095 125061 2034 5105 4% 4.84 25.7 ---------------------------------------- System Identifier=SYS7 / Volume Group=CICS-TST -------------------------------------------- Device C.U. Volume Device Frag. +---- Data Sets ----+ +-- Tracks Allocated --+ +-- Free --+ +- Average -+ Address Path Serial Type Index Total Non- VSAM Total Non- VSAM Tracks Per- I/O Response Number VSAM VSAM cent Rate Time 248 0002 DAT001 3380 0.521 39 38 1 12745 12742 3 469 4% 0.11 31.8 326 0003 DAT002 3380 0.485 89 89 0 10719 10719 0 2495 19% 0.10 46.0 ---- ------ ------ ------ ------ ------ ------ ------ ------ ---- ------ ------ 002 Volumes 0.503 128 127 1 23464 23461 3 2964 11% 0.21 38.4
Figure 4-77. Volume Group Configuration / Detail
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