During recovery, Adaptive Server uses only the 2K pool of the default data cache. If you shut down the server using shutdown with nowait, or if the server goes down due to power failure or machine failure, the number of log records to be recovered may be quite large.
To speed recovery, you can edit the configuration file to do one or both of the following:
Increase the size of the 2K pool in the default data cache by reducing the size of other pools in the cache
Increase the prefetch limit for the 2K pool
Both of these configuration changes are dynamic, so you can use sp_poolconfig to restore the original values after recovery completes, without restarting Adaptive Server. The recovery process allows users to log into the server as soon as recovery of the master database is complete. Databases are recovered one at a time and users can begin using a particular database as soon as it is recovered. There may be some contention if recovery is still taking place on some databases, and user activity in the 2K pool of the default data cache is heavy.