Invention Grant
- Patent Title: Shared simultaneously-connected removable drives and servers each housing an I/O controller which maintains an uninterrupted protocol connection
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Application No.: US12168263Application Date: 2008-07-07
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Publication No.: US07657665B2Publication Date: 2010-02-02
- Inventor: James William Dalton , Eric Richard Kern
- Applicant: James William Dalton , Eric Richard Kern
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Biggers & Ohanian, LLP.
- Agent John R. Biggers; Cynthia G. Seal
- Main IPC: G06F3/00
- IPC: G06F3/00 ; G06F13/00

Abstract:
Local drive presence is provided for local and remote drives by maintaining a plurality of uninterrupted protocol connections between a plurality of I/O controllers and a plurality of device interfaces through which peripheral bus commands are transmitted. Preferably, the I/O controllers are each housed in a separate server blade and provide each blade with access to the local and remote drives. At each of the device interfaces, rather than attaching an actual storage device, peripheral bus commands received at the device interfaces are serialized and conditionally passed or suppressed to and from the shared drive which is shared amongst the plurality of uninterrupted protocol connections. Preferably, the plurality of uninterrupted protocol connections is maintained such that the shared drives can be simultaneously shared. In one embodiment, the local drives are provided in a media tray which is shared amongst a plurality blades.
Public/Granted literature
- US20080270633A1 SHARED SIMULTANEOUSLY-CONNECTED DRIVES Public/Granted day:2008-10-30
Information query