Cache synchronization in a RAID subsystem using serial...

Details Cache synchronization in a RAID subsystem using serial... Cache synchronization in a RAID subsystem using serial...

2008-07-29

2008-07-29

Beausoliel, Robert (Department: 2113)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C714S006130, C714S042000, C711S114000

Reexamination Certificate

active

07406619

ABSTRACT:
A RAID system includes a pair of RAID controllers adapted to operate in active-active mode, each controller including a cache memory and at least one SAS/SATA I/O chip connected to a plurality of hard disk drives. Each SAS/SATA I/O chip includes more SAS/SATA ports than required to carry data to the hard drives. The caches in the respective controllers are synchronized via the extra SAS/SATA ports in each controller.

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