Can search time limit be applied by index?

[timgren]

Can a search time limit be applied differently by index rather than by role? 

Currently, we have a search roll limit of 6 weeks. However, this limit defeats the purpose of summary indexing which are often required to examine a much longer spread.

Any thoughts or work-arounds? 

[richgalloway]

No, search time limits cannot be applied by index.

Perhaps Workload Management Admission Rules will help.