Clientless software defined grid
First Claim
1. A method, comprising:
- configuring multiple servers coupled to a network as a software defined storage (SDS) grid, the SDS grid comprising the multiple servers storing a grid data map of a data distribution among the multiple servers of the SDS grid;
wherein the grid data map stores a plurality of entries, each of the plurality of entries including a data identifier and a server identifier;
receiving, by a first given server of the SDS grid, an input/output (I/O) request from a host computer via the network;
wherein the host computer connects to the SDS grid over a standard Internet Small Computer Systems Interface (iSCSI) protocol such that the host computer does not execute a specialized kernel driver nor client software to access data stored within the SDS grid; and
wherein the host computer does not have access to the grid data map indicating the data distribution of the data stored among the multiple servers of the SDS grid; and
upon identifying that a second given server of the SDS grid is configured to process the I/O request, forwarding the I/O request to the second given server;
wherein identifying the second given server comprises performing, by the first given server, a calculation comprising an algorithm that uses a Logical Block Address (LBA) received with the I/O request such that the LBA is used as an input parameter to the calculation, and wherein a result of the calculation, when used in conjunction with the grid data map, indicates the second given server by locating a given one of the plurality of entries in the grid data map which matches the data identifier according to the result of the calculation and retrieving the server identifier associated with the second given server.
1 Assignment
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Accused Products
Abstract
Methods, computing systems and computer program products implement embodiments of the present invention that include configuring multiple servers coupled to a network as a software defined storage (SDS) grid. A first given server receives, via the network, an input/output (I/O) request from a host computer, and determines a location of data associated with the I/O request. In some embodiments, each of the servers maintains a local grid data map that store locations for all data managed by the SDS grid. Upon identifying, in its respective local grid data map, that a second given server is configured to process the I/O request, the first given server forwards the I/O request to the second given server for processing, and upon receiving a result of the I/O request from the second given server, the first given server conveys the result of the I/O request to the host computer.
73 Citations
12 Claims
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1. A method, comprising:
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configuring multiple servers coupled to a network as a software defined storage (SDS) grid, the SDS grid comprising the multiple servers storing a grid data map of a data distribution among the multiple servers of the SDS grid;
wherein the grid data map stores a plurality of entries, each of the plurality of entries including a data identifier and a server identifier;receiving, by a first given server of the SDS grid, an input/output (I/O) request from a host computer via the network;
wherein the host computer connects to the SDS grid over a standard Internet Small Computer Systems Interface (iSCSI) protocol such that the host computer does not execute a specialized kernel driver nor client software to access data stored within the SDS grid; and
wherein the host computer does not have access to the grid data map indicating the data distribution of the data stored among the multiple servers of the SDS grid; andupon identifying that a second given server of the SDS grid is configured to process the I/O request, forwarding the I/O request to the second given server;
wherein identifying the second given server comprises performing, by the first given server, a calculation comprising an algorithm that uses a Logical Block Address (LBA) received with the I/O request such that the LBA is used as an input parameter to the calculation, and wherein a result of the calculation, when used in conjunction with the grid data map, indicates the second given server by locating a given one of the plurality of entries in the grid data map which matches the data identifier according to the result of the calculation and retrieving the server identifier associated with the second given server. - View Dependent Claims (2, 3, 4)
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5. A data facility, comprising:
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a network; one or more host computers coupled to the network; and multiple servers coupled to the network, and configured as a software defined storage (SDS) grid, the SDS grid comprising the multiple servers storing a grid data map of a data distribution among the multiple servers of the SDS grid;
wherein the grid data map stores a plurality of entries, each of the plurality of entries including a data identifier and a server identifier, each of the servers comprising;multiple storage devices, and a processor configured; to receive at a receiving server of the SDS grid, from a given host computer, an input/output (I/O) request;
wherein the host computer connects to the SDS grid over a standard Internet Small Computer Systems Interface (iSCSI) protocol such that the host computer does not execute a specialized kernel driver nor client software to access data stored within the SDS grid; and
wherein the host computer does not have access to the grid data map indicating the data distribution of the data stored among the multiple servers of the SDS grid, andupon identifying that a given server of the SDS grid, different from the receiving server is configured to process the I/O request, to forward the I/O request to the given server;
wherein identifying the second given server comprises performing, by the first given server, a calculation comprising an algorithm that uses a Logical Block Address (LBA) received with the I/O request such that the LBA is used as an input parameter to the calculation, and wherein a result of the calculation, when used in conjunction with the grid data map, indicates the second given server by locating a given one of the plurality of entries in the grid data map which matches the data identifier according to the result of the calculation and retrieving the server identifier associated with the second given server. - View Dependent Claims (6, 7, 8)
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9. A computer program product, the computer program product comprising:
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a non-transitory computer readable storage medium having computer readable program code embodied therewith, the computer readable program code comprising; computer readable program code configured to arrange multiple servers coupled to a network as a software defined storage (SDS) grid, the SDS grid comprising the multiple servers storing a grid data map of a data distribution among the multiple servers of the SDS grid;
wherein the grid data map stores a plurality of entries, each of the plurality of entries including a data identifier and a server identifier;computer readable program code executing on a first given server of the SDS grid and configured to receive an input/output (I/O) request from a host computer via the network;
wherein the host computer does connects to the SDS grid over a standard Internet Small Computer Systems Interface (iSCSI) protocol such that the host computer does not execute a specialized kernel driver nor client software to access data stored within the SDS grid; and
wherein the host computer not have access to the grid data map indicating the data distribution of the data stored among the multiple servers of the SDS grid; andcomputer readable program code configured, upon identifying that a second given server of the SDS grid is arranged to process the I/O request, to forward the I/O request to the second server;
wherein identifying the second given server comprises performing, by the first given server, a calculation comprising an algorithm that uses a Logical Block Address (LBA) received with the I/O request such that the LBA is used as an input parameter to the calculation, and wherein a result of the calculation, when used in conjunction with the grid data map, indicates the second given server by locating a given one of the plurality of entries in the grid data map which matches the data identifier according to the result of the calculation and retrieving the server identifier associated with the second given server. - View Dependent Claims (10, 11, 12)
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Specification