I/O operations for a storage array

Details I/O operations for a storage array I/O operations for a storage array

2011-04-12

2011-04-12

Gu, Shawn X (Department: 2189)

Electrical computers and digital processing systems: memory

Storage accessing and control

Specific memory composition

C711S117000, C711S141000, C711S156000, C711S170000, C711S221000

Reexamination Certificate

active

07925829

ABSTRACT:
Handling I/O operations for a storage array includes distributing metadata among separate memories of a plurality of directors of the storage array, where the metadata correlates logical device data with physical device data. A first one of the directors receives an I/O operation for a particular logical device. Handling I/O operations may also include determining which of the plurality of directors contains metadata corresponding to the particular logical device, and, in response to the metadata being on a different one of the directors, the first director providing a request to the different one of the directors. The directors may be interconnected by an interconnect fabric. The first one of the directors may provide a request to the second one of the directors via the interconnect fabric. Determining which of the plurality of directors contains metadata correspond to the particular logical device may include using a lookup table.

REFERENCES:
patent: 5206939 (1993-04-01), Yanai et al.
patent: 5778394 (1998-07-01), Galtzur et al.
patent: 5845147 (1998-12-01), Vishlitzky et al.
patent: 5857208 (1999-01-01), Ofek
patent: 6148377 (2000-11-01), Carter et al.
patent: 2003/0158836 (2003-08-01), Venkatesh et al.
patent: 2007/0180188 (2007-08-01), Fujibayashi et al.

Affiliated with

Also associated with

Rating

I/O operations for a storage array does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with I/O operations for a storage array, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and I/O operations for a storage array will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2727488