Error detection/correction and fault detection/recovery – Data processing system error or fault handling – Reliability and availability
Reexamination Certificate
2006-09-19
2006-09-19
Portka, Gary (Department: 2188)
Error detection/correction and fault detection/recovery
Data processing system error or fault handling
Reliability and availability
C707S793000, C707S793000, C711S162000
Reexamination Certificate
active
07111194
ABSTRACT:
A technique includes a set of procedures utilized during the transfer of service of a failed storage system to a surviving storage system of a cluster failover (CFO) configuration during a system outage, such as a disaster scenario. The procedures are executed by a RAID subsystem of the surviving storage system during disaster takeover, storage healing and node restart operations. The procedures prevent the possibility that clients accessing the storage system will see out-of-date versions of the data either during transfer of service of the system during the disaster scenario or subsequently after the storage system is healed and service on the failed system has been restored.
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Coatney Susan M.
Rodrigues Steven H.
Rowe Alan L.
Sarma Joydeep sen
Schoenthal Scott
Cesari and McKenna LLP
Network Appliance Inc.
Portka Gary
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