发明名称 |
Data hardening in a storage system |
摘要 |
A storage system, and a method of data hardening in the storage system, including: a de-glitch module configured for a detection of a power failure event; a write page module, coupled to the de-glitch module, the write page module configured for an execution of a cache write command based on the power failure event to send a cache page from a cache memory to a storage channel controller, wherein the cache memory is a volatile memory; and a signal empty module, coupled to the write page module, the signal empty module configured for a generation of a sleep signal to shut down a host bus adapter, wherein the host bus adapter interfaces with the storage channel controller to write the cache page back to the cache memory upon a power up of the host bus adapter and the storage channel controller. |
申请公布号 |
US9170941(B2) |
申请公布日期 |
2015.10.27 |
申请号 |
US201314081992 |
申请日期 |
2013.11.15 |
申请人 |
SANDISK ENTERPRISES IP LLC |
发明人 |
Ellis Robert W.;Herman Lace J.;Southerland Bobby Ray |
分类号 |
G06F12/08;G06F12/02;G06F11/10;G06F11/14 |
主分类号 |
G06F12/08 |
代理机构 |
Morgan, Lewis & Bockius LLP |
代理人 |
Morgan, Lewis & Bockius LLP |
主权项 |
1. A method of data hardening in a storage system comprising:
detecting a power failure event; executing a cache write command based on the power failure event to send a cache page from a cache memory to nonvolatile memory in the storage system, wherein the cache memory is volatile memory, wherein executing the cache write command includes writing the cache page and meta-data to nonvolatile memory in the storage system using logical block addresses outside a predetermined logical address space, and the predetermined logical address space includes logical addresses allocated for storing data during normal operation of the storage system; and generating a sleep signal to shut down a host bus adapter, wherein the host bus adapter interfaces with a storage channel controller to write the cache page back to the cache memory upon a power up of the host bus adapter and the storage channel controller. |
地址 |
Milpitas CA US |