Computer storage device having network interface

• US 20040243727A1
• Filed: 06/02/2003
• Published: 12/02/2004
• Est. Priority Date: 06/02/2003
• Status: Active Grant

• Current Assignee: Keicy K. Chung
• Original Assignee: Keicy K. Chung
• Inventors: Chung, Keicy K.
• Granted Patent: US 7,069,351 B2
• Time in Patent Office: Days
• US Class Current: 710/1
• CPC Class Codes: G06F 12/0866 for peripheral storage systems, e.g. disk cache

Abstract

A storage device having network interface comprising a processor communicably connected to a computer interface, a network interface, and a storage means. The processor is communicates with a computer and a file server through the computer interface and the network interface, respectively. The computer may request a non-user file from the processor and the processor responds by either (1) providing the requested file to the computer on a read-only basis if the non-user file is cached on the storage means, (2) obtains the requested file from the file server if the non-user file is available from the file server, caches the obtained file on the storage means, and provides the obtained file to the computer on a read-only basis, or (3) returns a file unavailable notice to the computer. The storage device may also provide to the computer read and write access to the storage means for storing user files.

Claims

1. A storage device comprising:

a processor;

a computer interface communicably connected to the processor to enable the processor to communicate with a computer,

a network interface communicably connected to the processor to enable the processor to communicate with a file server; and

a storage means communicably connected to the processor;

wherein the processor provides the computer read and write access to the storage means so that the computer may store user files on the storage means; and

wherein the computer may request a non-user file from the processor and the processor either (1) provides the non-user file to the computer on a read-only basis if the file is cached on the storage means, (2) obtains the non-user file from the file server if the non-user file is available from the file server, caches the obtained non-user file on the storage means, and provides the obtained non-user file to the computer on a read-only basis, or (3) returns a file unavailable notice to the computer.

2. The storage device of claim 1, wherein the computer is communicably connected to a network server through the network interface.

3. The storage device of claim 1, wherein the storage means comprises random access media.

4. The storage device of claim 1, further comprising a removable media storage component communicably connected to the processor, wherein removable media which includes a read-only copy of selected non-user files available from the file server is made accessible to the processor through the removable media storage component so that, when the storage device can not communicate with the file server, the processor accesses the selected non-user files and, if the requested non-user file is available from the removable media, obtains the non-user file, caches the obtained non-user file on the storage means, and provides the obtained non-user file to the computer on a read-only basis.

5. A storage device comprising:

a processor;

a computer interface communicably connected to the processor to enable the processor to communicate with a computer;

a network interface communicably connected to the processor to enable the processor to communicate with a file server;

a storage means communicably connected to the processor; and

a removable media storage component communicably connected to the processor, wherein removable media which includes a read-only copy of selected non-user files stored on the file server is made accessible to the processor through the removable media storage component;

wherein the computer may request a non-user file from the processor and the processor either (1) provides the non-user file to the computer on a read-only basis if the file is cached on the storage means;

(2) obtains the non-user file from the file server if the non-user file is available from the file server, caches the obtained non-user file on the storage means, and provides the obtained non-user file to the computer on a read-only basis;

(3) accesses the selected non-user files when the storage device can not communicate with the file server and, if the requested non-user file is available from the removable media, obtains the non-user file from the removable media, caches the obtained non-user file on the storage means, and provides the obtained non-user file to the computer on a read-only basis;

or (4) returns a file unavailable notice to the computer.

6. The storage device of claim 5, wherein the computer is communicably connected to a network server through the network interface.

7. The storage device of claim 5, wherein the storage means comprises random access media.

8. A storage device comprising:

a processor;

a network interface communicably connected to the processor to enable the processor to communicate with a file server;

a computer interface communicably connected to the processor to enable the processor to communicate with a computer, wherein the computer includes a removable media storage component and removable media which includes a read-only copy of selected non-user files stored on the file server is made accessible to the processor through the removable media storage component; and

a storage means communicably connected to the processor;

wherein the computer may request a non-user file from the processor and the processor either (1) provides the non-user file to the computer on a read-only basis if the file is cached on the storage means;

(2) obtains the non-user file from the file server if the non-user file is available from the file server, caches the obtained non-user file on the storage means, and provides the obtained non-user file to the computer on a read-only basis;

(3) accesses the selected non-user files when the storage device can not communicate with the file server and, if the requested non-user file is available from the removable media, obtains the non-user file from the removable media, caches the obtained non-user file on the storage means, and provides the obtained non-user file to the computer on a read-only basis;

or (4) returns a file unavailable notice to the computer.

9. The storage device of claim 8, wherein the computer is communicably connected to a network server through the network interface.

10. The storage device of claim 8, wherein the storage means comprises random access media.