Grid-oriented storage: Difference between revisions

Revision as of 23:50, 14 June 2013

Revision as of 14:06, 22 November 2013

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== Description ==

GOS was a successor of the term [[network-attached storage]] (NAS). A GOS-specific Filesystems Systemcontained (GOS-FS)hard disks, aoften [[peer-to-peerRAID]]s clustering(redundant technique, the single-purpose intentarrays of aindependent GOS [[operating system]]disks), and a browser-based management console motivate and enablelike thistraditional newfile architectureservers.

GOS systems contained hard disks, often arranged into logical, redundant storage containers or [[RAID]]s (redundant arrays of independent disks), as traditional file servers.

[[Image:gosongrid.jpg |thumb |upright=1.4]]

GOS was designed to deal with long-distance, cross-___domain and single-image file operations, which is typical in Grid environments. GOS behaves like a file server via the file-based GOS-FS protocol to any entity on the grid. InspiredSimilar by the success ofto [[Advanced Resource Connector|GridFTP]], GOS-FS integrates a parallel stream engine and [[Grid Security Infrastructure]] (GSI). Conforming to the universal VFS (Virtual Filesystem Switch), GOS-FS can be pervasively used as an underlying platform to best utilize the increased transfer bandwidth and accelerate the [[Network File System (protocol)|NFS]]/[[CIFS]]-based applications. GOS can also run over [[SCSI]], [[Fibre Channel]] or [[iSCSI]], which does not affect the acceleration performance, offering both file level protocols and block level protocols for [[storage area network]] (SAN) from the same system.

Conforming to the universal VFS (Virtual Filesystem Switch), GOS-FS can be pervasively used as an underlying platform to best utilize the increased transfer bandwidth and accelerate the [[Network File System (protocol)|NFS]]/[[CIFS]]-based applications. GOS can also run over [[SCSI]], [[Fibre Channel]] or [[iSCSI]], which does not affect the acceleration performance, offering both file level protocols and block level protocols for [[storage area network]] (SAN) from the same system.

Geographically distributed nature of resources that make up the grid infrastructure, along with their heterogeneity and different control policies in different domains, make the availability of these resources dynamic and conditional upon local constraints. Centralized management techniques for these resources are limited in their scalability both in terms of execution efficiency and fault tolerance. Provision of services across such platforms requires a distributed resource management mechanism and the peer-to-peer clustered GOS appliances allow a single storage image to continue to expand, even if a single GOS appliance reaches its capacity limitations. The cluster shares a common, aggregate presentation of the data stored on all participating GOS appliances. Each GOS appliance manages its own internal storage space. The major benefit of this aggregation is that clustered GOS storage can be accessed by users as a single mount point.

GeographicallyIn distributeda naturegrid ofinfrastructure, resources thatmay makebe upgeographically thedistant gridfrom infrastructureeach other, alongproduced withby theirdiffering heterogeneitymanufacturers, and differenthave differing access control policies. inThis differentmakes domains,access maketo the availability of thesegrid resources dynamic and conditional upon local constraints. Centralized management techniques for these resources are limited in their scalability both in terms of execution efficiency and fault tolerance. Provision of services across such platforms requires a distributed resource management mechanism and the peer-to-peer clustered GOS appliances allow a single storage image to continue to expand, even if a single GOS appliance reaches its capacity limitations. The cluster shares a common, aggregate presentation of the data stored on all participating GOS appliances. Each GOS appliance manages its own internal storage space. The major benefit of this aggregation is that clustered GOS storage can be accessed by users as a single mount point.

GOS products fit the thin-server categorization. Compared with traditional “fat server”-based storage architectures, thin-server GOS appliances deliver numerous advantages, such as the alleviation of potential network/grid bottle-necks, CPU and OS optimized for I/O only, ease of installation, remote management and minimal maintenance, low cost and Plug and Play, etc. Examples of similar innovations include NAS, printers, fax machines, routers and switches.