Swap reasons
When an address space is not currently in real
memory, a swap reason appears. The Exchange and Unilateral swaps are
also flagged as Swapped by the SRM; this is because these swap reasons
are due to an SRM decision to adjust the system Multi-Programming
Level.
For a detailed description of these swap types,
refer to the IBM® MVS Initialization and Tuning Guide.
The swap reason might be one of the following:
- APPC-Wt
- APPC wait swap
- Aux-Strg
- Auxiliary storage swap
- Cent-Str
- Central storage
- Det-Wait
- Detected wait swap
- Enq-Xchg
- Enqueue exchange swap
- Exchange
- Exchange on recommendation
- Long-Wat
- Long wait swap
- Real-Str
- Real storage swap
- Request
- Request swap
- Sys-Page
- System paging swap
- Term-In
- Input terminal wait swap
- Term-Out
- Output terminal wait swap
- Too-Long
- Out too long
- Transwap
- Transition swap
- Unilatrl
- Unilateral swap