Paul Ely Phones & Addresses
-
Santa Ana, CA
Publications
Us Patents
Method For Tracking And Storing Time To Complete And Average Completion Time For Storage Area Network I/O Commands
View pageUS Patent:
7716381, May 11, 2010
Filed:
Feb 22, 2006
Appl. No.:
11/360557
Inventors:
Paul Andrew Ely - Costa Mesa CA, US
Bino Joseph Sebastian - Costa Mesa CA, US
Bino Joseph Sebastian - Costa Mesa CA, US
Assignee:
Emulex Design & Manufacturing Corporation - Costa Mesa CA
International Classification:
G06F 3/00
G06F 13/42
G06F 13/42
US Classification:
710 5, 710 58, 710105
Abstract:
Embodiments of the present invention are directed to providing continuously updated completion time and an average completion time information for I/O commands on a per-LU, per-target, per-port basis. This measurement is performed by a kernel device driver that handles the I/O for the system at lower layers, so the measurements are more accurate because the delays due to higher level processing are not included. This approach allows the driver to track movements in the average I/O command completion time per LU and limit outstanding I/O counts early enough to potentially prevent overload conditions. By catching the overload early, the invention also has the ability to restore the original outstanding I/O count as the overload condition subsides.
Isbn (Books And Publications)
Noah's Ark Pop-Up ABC
View page
Author
Paul Ely
ISBN #
0689811098