ActiveStorage: A Storage Server with Mobile Code Engine

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ActiveStorage: A Storage Server with Mobile Code Engine

Michael Golm,Christian Wawersich,Meik Felser,Jürgen Kleinöder-1997-01-01

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TL;DRAbstract

Many applications must examine a large amount of file data and have only a very small result set. Moving such a computation to the network storage server saves network bandwidth and improves response time. Executing a find 1 on an NFS mounted directory that contains the linux-2.4.6 kernel sources needs 2.86 sec. The same command executed locally needs 0.05 sec 2 . The ActiveStorage architecture allows a client to transfer a code component - a StoreLet - to the NFS storage server. This StoreLet can communicate with the file system using fast local invocations instead of NFS RPCs. An exact resource control renders &quot;Denial of Service&quot; attacks impossible and guarantees a certain quality of service level for the storage server.

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Many applications must examine a large amount of file data and have only a very small result set. Moving such a computation to the network storage server saves network bandwidth and improves response time. Executing a find 1 on an NFS mounted directory that contains the linux-2.4.6 kernel sources needs 2.86 sec. The same command executed locally needs 0.05 sec 2 . The ActiveStorage architecture allows a client to transfer a code component - a StoreLet - to the NFS storage server. This StoreLet can communicate with the file system using fast local invocations instead of NFS RPCs. An exact resource control renders &quot;Denial of Service&quot; attacks impossible and guarantees a certain quality of service level for the storage server.

Keywords

Computer scienceOperating systemComputer networkNetwork File SystemRemote procedure callFile systemDistributed computingSSH File Transfer Protocol

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