Seagate Technology Incorporated

Yunaldi Yulizar

Ryan James Goss

Sumanth Jannyavula Venkata

Luke William Friendshuh

James David Sawin

Akhila Tadinada

An occurrence of at least one storage error is determined in an addressable portion of a primary storage storing a block of data. In response to determining the occurrence of the at least one storage error, it is determined whether the block of data is available in cache storage. In response to determining the block of data is cached, the cached block of data is used rather than the block of data from the addressable portion of the primary storage.

Using cache to manage errors in primary storage

Approaches for implementing a controller for a hybrid memory that includes a main memory and a cache for the main memory are discussed. The controller comprises a hierarchy of abstraction layers, wherein each abstraction layer is configured to provide at least one component of a cache management structure. Each pair of abstraction layers utilizes processors communicating through an application programming interface (API). The controller is configured to receive incoming memory access requests from a host processor and to manage outgoing memory access requests routed to the cache using the plurality of abstraction layers.

Layered architecture for hybrid controller

An apparatus includes a controller capable of being coupled to a magnetic data storage media and a cache. The cache includes non-volatile, solid-state memory. The controller is configured to detect a defect in the data storage media requiring a recovery operation and allocate a portion of the cache for storage of a journal to be used in the recovery operation. The controller is further configured to log steps of the recovery operation to the journal.

Growing community of inventors

Shakopee, MN, United States of America

Yunaldi Yulizar