Computer Storage System
First Claim
1. A computer-implemented storage system comprising:
- a plurality of redundant storage servers, each redundant storage server coupled to each of a plurality of disk servers, each disk server having at least one mass storage disk operable to store data, the data segmented according to a plurality of logical blocks, each logical block having an associated logical block identifier, the plurality of redundant storage servers operable to;
replicate each logical block of at least two of the plurality of disk servers; and
at least one cache server comprising a cache memory, the at least one cache server coupled to each redundant storage server, the at least one cache server operable to;
access the replicated logical blocks according to the associated plurality of logical block identifiers; and
cache, in the cache memory, a portion of the replicated logical blocks according to the associated plurality of logical block identifiers.
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Accused Products
Abstract
According to one embodiment, a computer storage system includes one or more redundant storage servers coupled to one or more cache servers. A redundant storage server is coupled to each disk server. A disk server comprises at least one mass storage disk operable to store data. The data is segmented according to logical blocks, where each logical block has an associated logical block identifier. The redundant storage servers are operable to replicate each logical block of at least two of the disk servers. The cache servers comprise a cache memory and are coupled to each redundant storage server. Each cache server is operable to access the replicated logical blocks according to the associated logical block identifiers, and cache, in the cache memory, the replicated logical block according to the associated logical block identifier.
38 Citations
21 Claims
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1. A computer-implemented storage system comprising:
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a plurality of redundant storage servers, each redundant storage server coupled to each of a plurality of disk servers, each disk server having at least one mass storage disk operable to store data, the data segmented according to a plurality of logical blocks, each logical block having an associated logical block identifier, the plurality of redundant storage servers operable to; replicate each logical block of at least two of the plurality of disk servers; and at least one cache server comprising a cache memory, the at least one cache server coupled to each redundant storage server, the at least one cache server operable to; access the replicated logical blocks according to the associated plurality of logical block identifiers; and cache, in the cache memory, a portion of the replicated logical blocks according to the associated plurality of logical block identifiers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A computer-implemented method comprising:
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accessing, by a plurality of redundant storage servers, a plurality of disk servers, each redundant storage server coupled to each disk server, each disk server having at least one mass storage disk operable to store data, the data segmented according to a plurality of logical blocks, each logical block having an associated logical block identifier; replicating each logical block of at least two of the plurality of disk servers; accessing the replicated logical blocks according to the associated plurality of logical block identifiers, the at least one cache server comprising a cache memory, the at least one cache server coupled to each redundant storage server; and caching, in the cache memory, a portion of the plurality of replicated logical blocks according to the associated plurality of logical block identifiers. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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21. A computer-implemented storage system comprising:
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a plurality of redundant storage servers, each redundant storage server coupled to each of a plurality of disk servers using a storage area network protocol, each disk server having a plurality of mass storage disks operable to store data, the data segmented according to a plurality of logical blocks, each logical block having an associated logical block identifier, the plurality of redundant storage servers comprising a spare redundant storage server, the plurality of redundant storage servers operable to; replicate each logical block of at least two of the plurality of disk servers; and at least one cache server comprising a cache memory, the at least one cache server coupled to each redundant storage server using a storage area network protocol, the plurality of cache servers comprising a spare cache server, the at least one cache server operable to; access the plurality of replicated logical blocks according to the associated plurality of logical block identifiers; and cache, in the cache memory, a portion of the replicated plurality of logical blocks according to the associated plurality of logical block identifiers.
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Specification