SAP ABAP Data Element DB2CBINUSE (Percentage of Buffers Currently in Use)
Hierarchy
☛
SAP_BASIS (Software Component) SAP Basis Component
⤷
BC-DB-DB2 (Application Component) DB2 for z/OS
⤷
STU3 (Package) Development Class for Database Monitor
SAP_BASIS (Software Component) SAP Basis Component⤷
BC-DB-DB2 (Application Component) DB2 for z/OS⤷
STU3 (Package) Development Class for Database Monitor
Basic Data
| Data Element | DB2CBINUSE |
| Short Description | Percentage of Buffers Currently in Use |
Data Type
| Category of Dictionary Type | D | Domain |
| Type of Object Referenced | No Information | |
| Domain / Name of Reference Type | DB2CHAR06 | |
| Data Type | CHAR | Character String |
| Length | 6 | |
| Decimal Places | 0 | |
| Output Length | 6 | |
| Value Table |
Further Characteristics
| Search Help: Name | ||
| Search Help: Parameters | ||
| Parameter ID | ||
| Default Component name | ||
| Change document | ||
| No Input History | ||
| Basic direction is set to LTR | ||
| No BIDI Filtering |
Field Label
| Length | Field Label | |
| Short | 0 | |
| Medium | 15 | Buff. curr.used |
| Long | 22 | Buffers curr. in use |
| Heading | 0 |
Documentation
Definition
The percentage of current in-use buffers is defined as
100 * QBSTCBA / QBSTVPL
where
QBSTCBA:
Number of current active (nonstealable) buffers.
Instantaneous sample of the number of buffers in the buffer pool that were active (in the nonstealable status) at the time of the request to transfer the buffer manager statistical data to the SMF record being produced.
This field is not accumulated.
QBSTVPL:
Number of buffers allocated for a virtual buffer pool.
Because the ratio gives a snapshot value at statistics collection time, it only shows a problem if it happens at this time. The buffer pool might be too small if the value is greater that 50%.
History
| Last changed by/on | SAP | 20070813 |
| SAP Release Created in | 710 |
