1. A method comprising: replaying, to a single database server, a simulation workload identifying a plurality of workload parts, wherein each workload part of the plurality of workload parts is at least a portion of a respective captured workload; wherein the plurality of workload parts comprises a first workload part that is a portion of a first workload executed relative to a first capture database server and a second workload part that is a portion of a second workload executed relative to a second capture database server; wherein replaying the simulation workload comprises replaying at least a portion of the first workload part and a portion of the second workload part concurrently.