The Pre-Migration Tool uses a mapping scheme to assign timeshare workloads one of four access level values based on allocation group relative weight values in SLES 10.
| SLES 10 Allocation Group Relative Weight | SLES 11 Access Level |
|---|---|
| > 10% | Top |
| > 5% to 10% | High |
| > 2% to 5% | Medium |
| 0 to 2% | Low |
Access level affects access rate (that is, resource volume received by a query) at a ratio of 2:1. So queries running in a timeshare workload of a given access level receive twice the resource volume as queries running in a timeshare workload of the access level immediately below.
| Access Level | Access Rate |
|---|---|
| Top | 8 |
| High | 4 |
| Medium | 2 |
| Low | 1 |
Use the Pre-Migration tool to change the access level value automatically assigned to each timeshare workload for each planned environment, if necessary to meet priority-scheduling goals. To minimize required changes to individual workload access level values, adjust the mapping scheme of relative weight values to access level values for each planned environment as a first step.