Method and system for deploying networked storage devices

• US 20040088294A1
• Filed: 11/01/2002
• Published: 05/06/2004
• Est. Priority Date: 11/01/2002
• Status: Abandoned Application

• Current Assignee: Dell Products LP (Dell Technologies Inc.)
• Original Assignee: Dell Products LP (Dell Technologies Inc.)
• Inventors: Lerhaupt, Gary S.
• Application Number:
  US10/286,245
• Publication Number:
  US 20040088294A1
• Time in Patent Office: Days
• US Class Current: 707/8
• CPC Class Codes: G06F 16/10 File systems; File servers

Abstract

Networked storage devices are accessed by user nodes through a consistent symbolic link naming convention that associates a symbolic link to a storage device unique identifier. User node operating system storage device directory naming conventions are mapped to the symbolic links by selecting a user node as a master and mapping symbolic links to directory names and unique identifiers for the networked storage devices with a master configuration engine. A configuration file with the symbolic link mapping generated by the master configuration engine is provided to configuration engines associated with other user nodes so that the other user nodes are configured to have the symbolic links point to consistent storage devices by reference to the unique identifiers. In the event of differences in user node directory names and subsequent changes to directory names for one or more user nodes, symbolic links remain associated with predetermined storage devices by reference to the unique identifiers.

Claims

1. A system for deploying networked storage devices, the system comprising:

plural storage devices, each storage device having a unique identifier;

plural user nodes operable to retrieve information from the storage devices, each user node having an operating system, each operating system having a naming convention for the storage devices;

a network interfacing the storage devices and the user nodes; and

a configuration engine associated with each user node, a selected user node configuration engine operable to generate a configuration file that maps the selected user node naming convention for the storage devices with the storage device unique identifiers by associating a symbolic link with each storage device, the selected user node configuration engine further operable to deploy the configuration file to the remaining user nodes for mapping the storage devices to each user node'"'"'s naming convention with the symbolic links by reference to the unique identifiers.

2. The system of claim 1 wherein the configuration engine is further operable to manage changes to a user node naming convention by re-mapping the naming convention and symbolic links by reference to the unique identifiers, the re-mapping maintaining the symbolic links associations with the storage devices.

3. The system of claim 1 wherein the user nodes are operable to retrieve data from a selected storage device by reference to a symbolic link associated with the storage device.

4. The system of claim 1 wherein the operating system naming convention presents storage devices as directories labeled in order of discovery of the storage devices at boot.

5. The system of claim 1 wherein the operating system comprises Linux.

6. The system of claim 5 wherein the storage devices comprise SCSI disk drives.

7. The system of claim 5 wherein the storage devices comprise raw devices operable to store information as an Oracle database.

8. A method for deploying storage devices to a network for access of stored information by plural information handling system nodes, the method comprising:

interfacing plural storage devices and plural user nodes through a network;

naming each storage device at each user node with a directory name;

selecting one of the user nodes for configuration;

mapping symbolic links for the selected user node, each symbolic link associating a storage device directory name and unique identifier;

providing the mapping of the selected user node to a second of the user nodes; and

referencing the storage device unique identifiers to map the symbolic links to the storage device directory names of second user node.

9. The method of claim 8 further comprising mapping the symbolic links to the storage device directory names for each user node interfaced with the network.

10. The method of claim 8 wherein naming each storage device further comprises:

labeling the storage devices alphanumerically in the order in which the user node discovers the storage devices during boot.

11. The method of claim 10 wherein the storage devices are labeled by a Unix operating system.

12. The method of claim 8 wherein the storage devices comprise raw devices.

13. The method of claim 8 wherein the storage devices comprise SCSI devices.

14. The method of claim 8 wherein the devices comprise IDE devices.

15. The method of claim 8 wherein the plural nodes and-plural storage devices are configured as a storage area network.

16. The method of claim 8 further comprising retrieving information from a storage device with the user node by identifying the storage device with its associated symbolic link.

17. The method of claim 8 further comprising:

altering the storage devices associated with the network to alter the user node directory names; and

maintaining the association of symbolic links with storage devices by reference to the unique identifiers.

18. A storage area network comprising:

plural storage information handling systems, each storage information handling system having a unique identifier;

plural user information handling systems for accessing data stored on the storage information handling systems, each user information handling system having a directory of names for discovered storage information handling systems;

a network interfacing the storage and user information handling systems;

a master configuration engine associated with a predetermined user information handling system and operable to configure symbolic links for the selected user information handling system, the symbolic links associating unique identifiers with the directory of names of the storage information handling systems; and

a slave configuration engine associated with each of one or more predetermined storage information handling systems, each slave configuration engine operable to receive the symbolic links from the master configuration engine and to configure an associated user information handling system with the symbolic links so that each symbolic link points to a consistent storage information handling system based on the unique identifiers.

19. The storage area network of claim 18 wherein the user information handling systems are further operable to communicate with storage information handling systems through the symbolic links.

20. The storage area network of claim 19 wherein each configuration engine is further operable to re-configure symbolic links in the event of changes to user information handling system directory names so that each symbolic link remains associated with the same storage information handling system.