6. DATA SOURCES › 6.2 VTS Component Data Sources › 6.2.2 StorageTek VSM SMF Data › 6.2.2.1 StorageTek VSM SMF Record Description
6.2.2.1 StorageTek VSM SMF Record Description
Note: In this section, the StorageTek SMF record type is
assumed to be type 255. The actual record type generated is
specified by the StorageTek administrator.
The SMF Type 255 StorageTek tape library statistics record
predated StorageTek VSM virtual tape systems. Originally,
the record contained subtypes that only applied to the host
and real tape drive activity in the StorageTek tape silo.
With the introduction of StorageTek VSM, additional subtypes
were added over time to collect performance and event data
for the virtual tape system.
Each SMF type 255 record subtype represents specific events
in the virtual tape system or performance statistics
collected over an interval. The storage system administrator
can selectively specify a subset of the following subtypes.
The StorageTek Virtual Tape Control System Installing and
Configuring VTCS guide recommends subtypes to collect. There
are 17 SMF type 255 record subtypes pertaining to VSM:
Subtype 10 The subtype 10 record is the VTSS subsystem
(SVTSSP) performance record. This subtype is
generated at 15-minute intervals. It
provides information on the back-end (disk
buffer) capacity and usage.
Subtype 11 The subtype 11 record is the VTSS channel
(SVTCIP) interface performance record. This subtype
is generated at 15-minute intervals. It
provides usage information on the channels
defined between the host to the VTSS, and
the VTSS to the Real Tape Drives (RTD).
Subtype 13 The subtype 13 record is the Virtual Tape
(SVTVMR) Volume (VTV) Mount record. This subtype is
generated for every VTV mount event. It
provides information on the virtual drive,
VTV volser, mount types, mount durations,
and the job that requested the mount.
Subtype 14 The subtype 14 record is the VTV Dismount
(SVTVDR) record. This subtype is generated for
every VTV dismount event. It provides
information on the virtual drive, VTV
volser, VTV size, and the job that
requested the mount.
Subtype 15 The subtype 15 record is the VTV Delete
(SVTVXR) record. This subtype is generated for
every VTV delete event. It provides
information on the VTV volser and VTV age.
Subtype 16 The subtype 16 record is the RTD Mount
(SVTRMR) record. This subtype is generated for
every RTD mount event. It provides
information on the reason for the mount and
the elapsed time for the mount to complete.
Subtype 17 The subtype 17 record is the RTD Dismount
(SVTRDR) record. This subtype is generated for
every RTD dismount event. It provides
information on the multivolume cartridge
(MVC), RTD device, and error sense codes.
Subtype 18 The subtype 18 record is the VTV Migrate
(SVTVGR) record. This subtype is generated for
every VTV migrate event. It provides
information on the MVC volser, RTD device,
VTV volser, the amount of data migrated and
the migration duration.
Subtype 19 The subtype 19 record is the VTV Recall
(SVRVRR) record. This subtype is generated for
every VTV recall event. It provides
information on the MVC volser, RTD device,
VTV volser, the amount of data migrated and
the migrate duration.
Subtype 20 The subtype 20 record is the RTD
(SVTRPR) Performance record. This subtype is
generated at 15 minute intervals. It
provides information on the RTD device,
data transfered, and connect times.
Subtype 21 The subtype 21 record is the RTD Vary
(not supported record. This subtype is generated for
at this time) every RTD Vary command event. It provides
information on the RTD device and its
status after a Vary command was issued.
This subtype is not processed by the VTS
Analyzer.
Subtype 25 The subtype 25 record is the MVC Status
(SVTMVC) record. This subtype is generated for
every change to a multivolume cartridge.
It provides information on MVC free space,
how much is usable, and how many holes have
been created as a result of VTVs that were
deleted or expired.
Subtype 26 The subtype 26 record is the VTV Movement
(SVTVVR) record. This subtype is generated for
every VTV movement event. It provides
information on the the MVC where the VTV
was originally, the MVC where it currently
resides, and the reason for the movement.
Subtype 27 The subtype 27 record is the VTV Scratch
(SVTVSS) Status record. This subtype is generated
for every VTV scratch event. It provides
information on the reason for scratch.
This record is currently not processed by
the VTS Analyzer.
Subtype 28 The subtype 28 record is the VTV
(not supported Replication record. This subtype is
at this time) generated for every VTV replication event.
It provides information on the VTV
replicated, how much data was replicated,
how long replication took, and the
secondary VTSS where the replication took
place. This subtype is currently not
processed by the VTS Analyzer.
Subtype 29 The subtype 29 record is the VTV and MVC
(not supported Unlink record. This subtype is generated
at this time) for every VTV and MVC unlink event. It
provides information on the VTV volser, the
MVC volser, and the reason for the unlink.
This subtype is currently not processed by
the VTS Analyzer.
Subtype 30 The subtype 30 record is the Vary Cluster
(not supported Link (CLINK) record. This subtype is
at this time) generated for every Vary CLINK event. It
provides information on the primary and
partner CLINK names and whether they were
varied on or offline. This subtype is
currently not processed by the VTS
Analyzer.
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