公开(公告)号：US20110082842A1

公开(公告)日：2011-04-07

申请号：US12574470

申请日：2009-10-06

申请人： MICHAEL R. GROSECLOSE, JR. ,  LARRY JUAREZ ,  DAVID MONTGOMERY ,  JASON L. PEIPELMAN ,  JOSHUA M. RHOADES

发明人： MICHAEL R. GROSECLOSE, JR. ,  LARRY JUAREZ ,  DAVID MONTGOMERY ,  JASON L. PEIPELMAN ,  JOSHUA M. RHOADES

IPC分类号： G06F17/30

CPC分类号： G06F17/30306 ,  G06F3/0608 ,  G06F3/0638 ,  G06F3/067 ,  G06F17/30501 ,  H03M7/30

摘要： A data storage subsystem having a plurality of data compression engines configured to compress data, each having a different compression algorithm. A data handling system is configured to select at least one sample of data; operate a plurality of the data compression engines to compress the selected sample(s); determine the compression ratios of the operated data compression engines with respect to the selected sample(s); and select the data compression engine having the greatest compression ratio with respect to the selected sample(s), to compress the data. Further, the data compression engines may be in tiers from low to high in accordance with expected latency to compress data and to uncompress compressed data; and a data compression engine is selected from a tier that is inverse to the present rate of access.

摘要翻译： 数据存储子系统具有多个数据压缩引擎，其被配置为压缩数据，每个具有不同的压缩算法。 数据处理系统被配置为选择至少一个数据样本; 操作多个数据压缩引擎来压缩所选择的样本; 确定所操作的数据压缩引擎相对于所选择的样本的压缩比; 并选择相对于所选择的样本具有最大压缩比的数据压缩引擎来压缩数据。 此外，数据压缩引擎可以根据预期的等待时间从低到高分级来压缩数据并解压缩压缩数据; 并且从与当前访问速率相反的层中选择数据压缩引擎。