Logical partitioning in redundant systems

Details Logical partitioning in redundant systems Logical partitioning in redundant systems

2007-02-27

2007-02-27

Beausoliel, Robert (Department: 2113)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

Reexamination Certificate

active

10675323

ABSTRACT:
Provided are a method, system, and article of manufacture, wherein a plurality of processing nodes in a storage system are partitioned into a plurality of logical processing units, and wherein the plurality of logical processing units can respond to I/O requests from a host coupled to the storage system. At least two logical processing units are grouped, wherein data in a first storage coupled to a first logical processing unit of the least two logical processing units is mirrored by data in a second storage coupled to the second logical processing unit of the at least two logical processing units. In response to a failure of the first logical processing unit, an I/O request from the host is responded to via the second logical processing unit.

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Compaq/HP, “TruCluster Server Product”[online]http://h30097.www3.hp.com/docs/cluster—doc/cluster—50/TCR—HCFG/CHNTRXXX.HTM.

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