Previous Topic: MUF_COVEREDVIRTUAL (MFC)Next Topic: MUF_IDENTITY (MFI)


MUF_DATA_SHARING (MFD)

This table is provided to allow the monitoring of the MUF in a Data Sharing environment. It provides real-time information about the types and frequencies of requests being made through the Coupling Facility to/from this MUF.

Column Name

SQL Data Type

Nullable

Description

ALL_CALLS

INTEGER

No

Total number of calls made to the Coupling Facility using XES.

ENT_RATIO

SMALLINT

No

Denominator of fraction representing ratio of elements to entries.

EL_RATIO

SMALLINT

No

Numerator of the fraction representing ratio of elements to entries. The mean list entry size should be approximated by EL_RATIO * 256 / ENT_RATIO.

HIGH_USED_LIST_ENT

INTEGER

No

High water mark for number of entries in list structure.

HIGH_USED_LIST_EL

INTEGER

No

High water mark for number of 256-byte entries in list structure.

HIGH_USED_BUFL_ENT

INTEGER

No

High water mark for number of 256-byte entries used for buffers.

LIST_CALLS

INTEGER

No

Total calls made to the Coupling Facility to support list structure processing.

LIST_READS

INTEGER

No

Times a list record was requested for read.

LIST_RESETS

INTEGER

No

Times a list lock was released.

LIST_SETS

INTEGER

No

Times a list lock was requested.

LIST_WRITES

INTEGER

No

Times a list record was requested to be written or deleted.

LOCK_ALTERS

INTEGER

No

Times a lock structure lock was escalated from share to exclusive (excluding buffers).

LOCK_B_ALTERS

INTEGER

No

Times a lock structure buffer lock was escalated from share to exclusive.

LOCK_B_CONTENTIONS

INTEGER

No

Times contentions occurred for a lock structure buffer lock.

LOCK_B_OBTAINS

INTEGER

No

Times a lock structure buffer lock was requested.

LOCK_B_RELEASES

INTEGER

No

Times a lock structure buffer lock was released.

LOCK_CALLS

INTEGER

No

Total calls made to the Coupling Facility to support lock structure processing.

LOCK_CONTENTIONS

INTEGER

No

Times contentions occurred for a lock structure lock (excluding buffers).

LOCK_OBTAINS

INTEGER

No

Times a lock structure lock was requested (excluding buffers).

LOCK_RELEASES

INTEGER

No

Times a lock structure lock was released (excluding buffers).

MAX_LIST_ENT

INTEGER

No

The approximate maximum number of entries allowed in the list structure.

MAX_LIST_EL

INTEGER

No

The approximate maximum number of 256-byte entries allowed in the list structure.

MAX_LIST_STR_SIZE

DECIMAL(11,0)

No

Maximum storage of list structure.

MESSAGES_IN

INTEGER

No

Times a message was received from another MUF in support of Data Sharing processing.

MESSAGES_OUT

INTEGER

No

Times a message was sent to another MUF in support of Data Sharing processing.

MUF_NAME

CHAR(8)

No

Logical name for this MUF.

REFUSED_LOCK_RQ

INTEGER

No

Number of times that contention processing rejected a lock request.

SRB_USES

INTEGER

No

Times an SRB was executed in support of the Coupling Facility processing.