A semi-static distribution technique distributes parity across disks of an array. According to
the technique, parity is distributed (assigned) across the disks of the array in a manner that …

A takeover system and method for high availability in the face of component failures for a
multiple-node storage system cluster is provided. When a takeover is triggered either …

We present the WEAVER codes, new families of simple highly fault tolerant XOR-based
erasure codes for storage systems (with fault tolerance up to 12). The design features of …

We present a new family of XOR-based erasure codes primarily targeted for use in disk
arrays. These codes have a unique data/parity layout, with both horizontal and vertical parity …

AGGREGAEB AGGREGAEC fails, new data may still be accessed by the system (the striped
aggregates), both to write new data, and to read data stored on the failed aggregate. In …

Abstract A “row-diagonal”(RD) parity technique reduces overhead of computing diagonal
parity for a storage array adapted to enable efficient recovery from the concurrent failure of …

US7200715B2 - Method for writing contiguous arrays of stripes in a RAID storage system using
mapped block writes - Google Patents US7200715B2 - Method for writing contiguous arrays of …

Dynamic erasure coding for computing and data storage systems. A method embodiment
commences upon accessing a set of fault tolerance policy attributes associated with the …

5,519,844 A 5, 1996 Stallmo failures to be tolerated, wherein the one or more parity data
comprises a row parity, a first diagonal parity, and a second diagonal parity, wherein the one …

Erasures codes, particularly those protecting against multiple failures in RAID disk arrays,
provide a code-specific means for reconstruction of lost (erased) data. In the RAID …