1. A method of managing an accelerator cache in a data storage system that interfaces with a host storage client, the method comprising: detecting, by a storage processor of the data storage system, presence of an accelerator cache storage device in the data storage system; automatically configuring, by the storage processor, an accelerator cache using at least a portion of the storage space of the accelerator cache storage device; detecting removal of the accelerator cache storage device from the data storage system; and when the removed storage device was not the last storage device associated with the accelerator cache, continuing use of remaining accelerator cache storage without reinitializing the remaining accelerator cache storage.