Patent ID: 9037787
Filing Date: 2015-05-19
Classification: G06F,G11C

Abstract:
1. A storage system comprising: a system memory configured to store flash tables and having a bank of volatile RAM modules; a physically-addressed solid state disk (SSD) addressable using physical addresses associated with user data to be stored in or retrieved from the physically-addressed SSD in blocks, wherein the flash tables including at least one table used to map logical block addresses to physical block addresses, the physical block addresses identifying the location of stored user data in the physically addressed SSD, the physically-addressed SSD configured to store a copy of the flash tables; a non-volatile memory module, located externally to the physically-addressed SSD and configured to store changes to the flash tables upon the flash tables being moved to the physically-addressed SSD, wherein the changes to the flash tables are used to avoid reconstruction of the flash tables upon power interruption.