Patent ID: 6279078
Filing Date: 2001-08-21
Classification: G06F

Abstract:
A method for synchronizing a cache mode in a cache memory system in a computer, the cache memory system having a first controller and a second controller and a first cache module and a second cache module and operating in a plurality of cache modes, said method comprising steps of:initializing the first controller and the second controller to a startup state;detecting initialization has been completed by the first controller;setting the first controller to a lock all state allowing the first controller access to the first and the second cache modules;determining by the first controller a cache mode stored in a first metadata in the first cache module and a second metadata in the second cache module;setting a cache mode state in the first controller in accordance with the cache mode determined;determining the cache mode state in the first controller by the second controller; andsetting the cache mode state in the second controller to synchronize the first controller and the second controller in the same cache mode state.