Vy Khanh Nguyen

US Patent:

6965957, Nov 15, 2005

Filed:

Jul 12, 2002

Appl. No.:

10/194685

Inventors:

Vy Nguyen - Hayward CA, US

Assignee:

3PARdata, Inc. - Fremont CA

International Classification:

G06F013/00

US Classification:

710100, 710123

Abstract:

A method for new nodes to join a cluster in a serial sequence includes (a) a new node transmitting a first type of request to join the cluster and (b) the new node determining if it has to back off the first type of request. The new node has to back off if (1) it has received a second type of request to join the cluster from another new node, (2) it has received the first type of request with a higher sequence number from another new node, (3) it has received the first type of request with a lower node number from another new node, or (4) a member node of the cluster is in a busy state. The new node transmits the first type of request, receives the first type of request, and receives the second type of request through primary links to the new nodes and member nodes of the cluster.

US Patent:

7058957, Jun 6, 2006

Filed:

Jul 12, 2002

Appl. No.:

10/194710

Inventors:

Vy Nguyen - Hayward CA, US

Assignee:

3PARdata, Inc. - Fremont CA

International Classification:

G06F 7/00

US Classification:

719318, 714 1, 714 2, 714 4, 714100, 709223

Abstract:

A method for notifying events to a node in a cluster includes (1) receiving a first event message and a second event message, (2) queuing the first and the second event messages, (3) sending the first event message to a first service callback, wherein the first service callback calls a first callback function to handle the first event message, (4) sending the first event message to a second service callback after (a) a the first service callback has handled the first event message and (b) a corresponding first service callback at a member node has handled the first event message, wherein the second service callback calls a second callback function to handle the first event message, and (5) sending the second event message to the first service callback after the first and the second callback functions have handled the first event message, wherein the first service callback calls the first callback function to handle the second event message. The method may further include sending a dummy message to the first callback function if the first callback function is waiting for a message from a sending node that is down. The method may also include sending a node down message to the first callback function if the first callback function is sending a message to a receiving node that is down.

US Patent:

7415553, Aug 19, 2008

Filed:

Aug 12, 2005

Appl. No.:

11/202671

Inventors:

Vy Nguyen - Hayward CA, US

Assignee:

3PAR, Inc. - Fremont CA

International Classification:

G06F 13/00

US Classification:

710100, 710123

Abstract:

A method for new nodes to join a cluster in a serial sequence includes (a) a new node transmitting a first type of request to join the cluster and (b) the new node determining if it has to back off the first type of request. The new node has to back off if (1) it has received a second type of request to join the cluster from another new node, (2) it has received the first type of request with a higher sequence number from another new node, (3) it has received the first type of request with a lower node number from another new node, or (4) a member node of the cluster is in a busy state. The new node transmits the first type of request, receives the first type of request, and receives the second type of request through primary links to the new nodes and member nodes of the cluster.

US Patent:

7590985, Sep 15, 2009

Filed:

Jul 12, 2002

Appl. No.:

10/194606

Inventors:

Vy Nguyen - Hayward CA, US

Assignee:

3PAR, Inc. - Fremont CA

International Classification:

G06F 15/177
G06F 9/54

US Classification:

719313, 719315, 709203, 709221

Abstract:

A method for a name mapping module on a node to handle communication between a client process and a server process includes receiving from a client process a process handle and a message for a server process, mapping the process handle to an entry of the server process in a process table, reading the entry to retrieve (1) a node number of a node and (2) a process ID on the node, and sending the message with the process ID to the node. If the server process is not accepting messages, the method further includes waiting for the backup server process to take over for the server process before sending the message. If the server process or the node fails after the message was sent, the method further includes waiting for the backup server process to take over for the server process. 217.

US Patent:

20190236164, Aug 1, 2019

Filed:

Jul 19, 2018

Appl. No.:

16/040398

Inventors:

- Redwood Shores CA, US
Vy Nguyen - Pleasanton CA, US
Steven To - San Jose CA, US

Assignee:

Oracle International Corporation - Redwood Shores CA

International Classification:

G06F 17/30

Abstract:

Techniques are disclosed herein for creating and patching software homes using content addressable storage. One or more embodiments comprises storing content for a file that is used to run a particular software deployment. The file is associated with a particular directory that includes a link to a first filename. The first filename is generated as a function of the content for the file, such as by applying a hash function. Responsive to receiving updated content a second filename is generated as a function of the updated content. The second filename is different than the first filename. The link included in the particular directory is modified to point to the second filename. After modifying the link included in the particular directory, the updated content for the file is used to run the particular software deployment.