Invention Grant
US08099624B1 Recovery mechanism for I/O module using out-of-band control path
有权
使用带外控制路径的I / O模块的恢复机制
- Patent Title: Recovery mechanism for I/O module using out-of-band control path
- Patent Title (中): 使用带外控制路径的I / O模块的恢复机制
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Application No.: US12557441Application Date: 2009-09-10
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Publication No.: US08099624B1Publication Date: 2012-01-17
- Inventor: Mayank Saxena , George Kong , Wanye Booth , James Lin , Radek Aster
- Applicant: Mayank Saxena , George Kong , Wanye Booth , James Lin , Radek Aster
- Applicant Address: US CA Sunnyvale
- Assignee: Network Appliance, Inc.
- Current Assignee: Network Appliance, Inc.
- Current Assignee Address: US CA Sunnyvale
- Agency: Blakely, Sokoloff, Taylor & Safman LLP
- Main IPC: G06F11/00
- IPC: G06F11/00

Abstract:
A storage system includes a storage server and a storage subsystem having an I/O module coupled to disks. The storage server includes a storage adapter coupled to the I/O module creating an in-band (data) path to access data stored on the disks. The storage server sends a data command through the in-band path to the I/O module for accessing the data stored on the disks. The storage server further includes a network adapter coupled to the I/O module creating an out-of-band control path to control the I/O module. The storage server detects through the in-band path that the I/O module is non-responsive to a data command and automatically changes the behavior of the I/O module (e.g., resets the I/O module) through the out-of-band control path to recover the non-responsive I/O module. The storage server also collects and outputs status data of the I/O module through the out-of-band control path.
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