release notes
| Book:
1.9.5,
1.9.12 (opt, FHS),
2.11 (FHS),
2.12 (FHS),
2.13 (FHS),
2.14 (FHS),
| Wiki
| Q&A
set breakeven
set breakeven — Set the breakeven parameter - used within the cost calculations.
Synopsis
set breakeven {<breakevenPara>}
- breakevenPara
The breakeven parameter has to be a positive number smaller than 1.0. It specifies the impact of the age of the least recently used file on space cost. It the LRU file is one week old, the space cost will be equal to
(1 + breakeven). Note that this will not be true, if the breakeven parameter has been set to a value greater or equal to 1.
Description
The breakeven parameter is used within the space cost calculation scheme described in the section called “The Space Cost”.