PER FILE SYSTEM USAGE OF NETWORKS

• US 20100153526A1
• Filed: 12/12/2008
• Published: 06/17/2010
• Est. Priority Date: 12/12/2008
• Status: Active Grant

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: CHAUDHARY, PUNEET, Shah, Gautam Haridas, Gunda, Kalyan C.
• Granted Patent: US 8,171,106 B2
• Time in Patent Office: Days
• US Class Current: 709/222
• CPC Class Codes: H04L 67/1097 for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]

Abstract

A method, information processing system, and computer program product access data in a system. The system includes a plurality of Network Shared Disk servers and at least one set of Network Shared Disks. Each of the Network Shared Disks are served by at least one of the Network Shared Disk servers across a multiple networks. Configuration data that includes information indicating which of the networks is associated with each of the Network Shared Disks for the one node is analyzed. A first of the Network Shared Disks to be accessed is identified. One of the networks that is associated with the first Network Shared Disk is selected based on the configuration data. The first Network Shared Disk is accessed via the one network that was selected.

Claims

1. A method for accessing data in a system, the system including a plurality of Network Shared Disk servers and at least one set of Network Shared Disks, each of the Network Shared Disks being served by at least one of the Network Shared Disk servers across a plurality of networks, the method comprising the steps of:

analyzing, by one node in a cluster of nodes, configuration data that includes information indicating which of the networks is associated with each of the Network Shared Disks for the one node;

identifying, by the one node, a first of the Network Shared Disks to be accessed;

selecting, by the one node, one of the networks that is associated with the first Network Shared Disk based on the configuration data; and

accessing, by the one node, the first Network Shared Disk via the one network that was selected.

2. The method of claim 1, wherein the selecting step comprises:

determining a subnet that the one node is on;

determining, from the file system configuration data, which of the Network Shared Disk servers are on the subnet that the on node is on; and

selecting one of the Network Shared Disk servers from the Network Shared Disk servers that are determined to be on the subnet that the one node is on.

3. The method of claim 1, wherein the Network Shared Disks use a General Parallel File System.

4. The method of claim 1, further comprising the steps of:

identifying, by the one node, a second Network Shared Disk to be accessed;

selecting, by the one node, a second of the networks that is associated with the second Network Shared Disk based on the configuration data; and

accessing, by the one node, the second Network Shared Disk via the second network that was selected,

wherein the second network is different than the first network.

5. The method of claim 1, wherein the configuration data further includes access data that indicates the network that is to be selected by the one node for accessing each of the Network Shared Disks.

6. The method of claim 5, further comprising the steps of:

receiving new access data comprising information indicating another network that is to be selected for accessing one of the Network Shared Disks; and

updating the configuration data based on the new access data,

wherein the other network is different than the first network.

7. The method of claim 6, further comprising the steps of:

selecting, by the one node, the other network that is associated with the one Network Shared Disk based on the configuration data; and

accessing, by the one node, the one Network Shared Disk via the other network that was selected.

8. The method of claim 1, further comprising the steps of:

selecting, by a second node in the cluster of nodes, a second of the networks that is associated with the first Network Shared Disk based on the configuration data; and

accessing, by the second node, the first Network Shared Disk via the second network that was selected,

wherein the second network is different than the first network.

9. An information processing system for accessing data in a system, the system including a plurality of Network Shared Disk servers and at least one set of Network Shared Disks, each of the Network Shared Disks being served by at least one of the Network Shared Disk servers across a plurality of networks, the information processing system comprising:

a memory;

a processor communicatively coupled to the memory; and

a data access manager coupled to the memory and the processor, wherein the data access manager is adapted to;

analyze configuration data that includes information indicating which of the networks is associated with each of the Network Shared Disks for the information processing system;

identify a first of the Network Shared Disks to be accessed;

select one of the networks that is associated with the first Network Shared Disk based on the configuration data; and

access the first Network Shared Disk via the one network that was selected.

10. The information processing system of claim 9, wherein the data access manager is further adapted to selected by:

determining a subnet that the information processing system is on;

determining, from the file system configuration data, which of the Network Shared Disk servers are on the subnet that the information processing system is on; and

selecting one of the Network Shared Disk servers from the Network Shared Disk servers that are determined to be on the subnet that the information processing system is on.

11. The information processing system of claim 9, the data access manager is further adapted to:

identify a second Network Shared Disk to be accessed;

select a second of the networks that is associated with the second Network Shared Disk based on the configuration data; and

access the second Network Shared Disk via the second network that was selected,

wherein the second network is different than the first network.

12. The information processing system of claim 9, wherein the configuration data further includes access data that indicates the network that is to be selected by the data manager for accessing each of the Network Shared Disks.

13. The information processing system of claim 12, wherein the data access manager is further adapted to:

receive new access data comprising information indicating another network that is to be selected for accessing one of the Network Shared Disks; and

update the configuration data based on the new access data,

wherein the other network is different than the first network.

14. The information processing system of claim 13, wherein the data access manager is further adapted to:

select the other network that is associated with the one Network Shared Disk based on the configuration data; and

access the one Network Shared Disk via the other network that was selected.

15. The information processing system of claim 9, wherein the data access manager is further adapter to:

selecting a second of the networks that is associated with the first Network Shared Disk based on the configuration data; and

accessing the first Network Shared Disk via the second network that was selected, wherein the second network is different than the first network.

16. A computer program product operable on at least one node for accessing data in a system, the system including a plurality of Network Shared Disk servers and at least one set of Network Shared Disks, each of the Network Shared Disks being served by at least one of the Network Shared Disk servers across a plurality of networks, the computer program product comprising instructions for:

analyzing configuration data that includes information indicating which of the networks is associated with each of the Network Shared Disks for the at least one node;

identifying a first of the Network Shared Disks to be accessed;

selecting one of the networks that is associated with the first Network Shared Disk based on the configuration data; and

accessing, by the one node, the first Network Shared Disk via the one network that was selected.

17. The computer program product of claim 16, the instructions for selecting further comprise instructions for:

determining a subnet that the at least one node is on;

determining, from the file system configuration data, which of the Network Shared Disk servers are on the subnet that the at least one node is on; and

selecting one of the Network Shared Disk servers from the Network Shared Disk servers that are determined to be on the subnet that the at least one node is on.

18. The computer program product of claim 16, further comprising instructions for:

identifying a second Network Shared Disk to be accessed;

selecting a second of the networks that is associated with the second Network Shared Disk based on the configuration data; and

accessing the second Network Shared Disk via the second network that was selected,

wherein the second network is different than the first network.

19. The computer program product of claim 16, wherein the configuration data further includes access data that indicates the network that is to be selected for the at least one node for accessing each of the Network Shared Disks.

20. The computer program product of claim 19, further comprising instructions for:

receiving new access data comprising information indicating another network that is to be selected for accessing one of the Network Shared Disks; and

updating the configuration data based on the new access data,

wherein the other network is different than the first network.