Patent ID: 9405487
Filing Date: 2016-08-02
CPC Classification: G06F,Y10S

Claim Text:
1. A storage system comprising: a computer; a plurality of vdisks in communication with the computer, each vdisk containing a plurality of persistent storage segments, each segment providing a specific class of service (CoS) for storage different from the CoS for storage of the other segments; each vdisk storing one or more files with data and meta data distributed among its storage segments, each file's meta data including a search tree indexed by logical block number, each file described by a single inode, a first storage segment of the plurality of storage segments being a first disk drive having a low latency and storing a first portion of one of the files, a second storage segment of the plurality of storage segments storing a second portion of the one file being a second disk drive and having a higher latency than the first storage segment so when the computer finishes reading the first portion of the file, the second portion of the file with the second storage segment is ready to be read by the computer because the second disk drive has come up to operational speed.