Patent ID: 9286209
Filing Date: 2016-03-15
CPC Classification: G06F,G11B

Claim Text:
1. A method for accessing data in a redundant array of inexpensive disks (RAID) storage array, comprising: receiving a write request including a host address and a data block; identifying a primary map table entry in response to the host address, the primary map table having a plurality of primary map table entries, each primary map table entry identifying one of a plurality of secondary map tables; identifying a secondary map table in response to an identified primary map table entry identified by the host address, each secondary map table having a plurality of secondary map table entries, each secondary map table entry identifying a storage location in the RAID storage array; identifying an indicated secondary map table entry in response to the host address; serializing the write request into a RAID stripe including the data block; storing a block address in the identified secondary map table entry; and writing the RAID stripe including the data block to the RAID storage array, the block address stored in the identified secondary map table entry indicating a location of the data block in the RAID storage array.