This report summarizes the coupling facility storage-class
memory (SCM) utilization for CHECK(XCF_CF_STR_SCM_UTILIZATION).
When
the check is run in verbose mode, IXCH0925I is issued to list all
allocated coupling facility structures with assigned storage-class
memory (SCM). The structures that are exceeding a defined threshold
utilization percentage for SCM are listed first followed by structures
that have not exceeded any threshold utilization percentage.
Structure
Name:
The structure name.
CFNAME:
The coupling facility name where the structure resides.
SCM
Utilization:
The current SCM utilization for the coupling
facility structure. SCM Utilization is the percentage
of SCM frames eligible for use by the structure that are currently
being used by the coupling
facility to hold migrated
structure data.
Eligible To Be Assigned SCM:
Total amount of SCM available to a coupling facility structure
that may be used as structure
extensions.
Severity:
The exception severity level for an individual coupling facility
structure.
The severity level is based on the defined
utilization thresholds for the check. The severity can
be NONE, LOW, MED and HIGH. The overall check exception severity
will be the highest
severity found by the check for
an individual coupling facility structure.
text
Explanation
Where
text is:
STRUCTURE SCM SCM ELIGIBLE
NAME CF NAME UTILIZATION TO BE ASSIGNED SEVERITY
--------- ------- ----------- -------------- --------
strname cfname used eligible scm severity
This
is a report for CHECK(IBMXCF,XCF_CF_STR_SCM_UTILIZATION) that displays
the SCM utilization percentage for coupling facility structures configured
to use storage-class memory.
When the check is run in verbose
mode, IXCH0925I lists all allocated coupling facility structures with
assigned SCM. The structures that are exceeding a defined threshold
utilization percentage for SCM are listed first followed by structures
that have not exceeded any threshold utilization percentage.
In
the report:
- strname
- The name of an allocated structure using SCM, and the structure status. The status
can be one of the following:
- OLD
- A structure rebuild process is in progress and two instances of the
structure are allocated. This is the old instance of the structure. The
structure rebuild process type is either rebuild or duplexing rebuild.
- NEW
- A structure rebuild process is in progress and two instances of the
structure are allocated. This is the new instance of the structure. The
structure rebuild process type is either rebuild or duplexing rebuild.
- PND
- Deallocation is pending for this structure because a structure dump is
associated with this structure. The structure deallocation remains pending
until the structure dump is either forced or written to a dump data set.
- cfname
- The name of the coupling facility in which the structure is allocated.
- used
- The percentage of the total amount of storage-class memory available to
the structure that is currently in use.
- eligible scm
- Total amount of storage-class memory available to the structure that may be used
as structure extensions. The total amount of coupling facility SCM available for use
by structures is expressed in units of kilobytes (K), megabytes (M), gigabytes (G),
or terabytes (T).
- severity
- The exception severity level for an individual coupling facility structure. The
severity level is based on the defined utilization thresholds for the check. The
overall check exception severity will be the highest severity found by the check for
an individual coupling facility structure. Severity is one of the following:
System action
The system continues processing.
Operator response
System programmer response
Problem determination
Source
Cross System Coupling Facility (SCXCF)
Module
Routing code
Descriptor code