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Blade boot based on badge in Disclosure Number: IPCOM000033501D
Original Publication Date: 2004-Dec-13
Included in the Prior Art Database: 2004-Dec-13
Document File: 1 page(s) / 21K

Publishing Venue



Microsoft has driven requirements to Personal computer makers that set strict requirements on OS boot time from System Off or S5 state. The PC must boot the OS with in 30 seconds from depressing the power switch. This requirement has resulted in fundamental changes in the execution of POST, design of device drivers, and load sequence. IBM and the rest of Personal computer makers have spent significant time and effort in changing POST and device drivers to support the fast boot requirements. Desktop blades are emerging. Client blades are a split design where the client is in the data center and only the screen and I/O devices are at the user's desk. The two pieces are connected by ethernet. Because it is a split design a client blade has a significantly longer boot time than a traditional client. Today, users have come to expect the system to boot quickly. It is important to preserve this type of user experience to ensure the client blades provide similar experience.

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Blade boot based on badge in

     This publication describes a method to provide fast boot for client blades by determining when and where a user physically badges into the facility. Using this information we can prestart the blade boot process.

     Currently, the user turns on the client blade which sends a command to the data center. The data center on receipt of the command begins the client initialization by searching for an open blade that meets the client requirements and begins to locate and cache the clients image file. Since the activity is started by the client, the boot time is significantly longer than the current scenario, since the blade center must authenticate the client, locate resource, and then boot the OS, and respond to/from over the network. The delays can be extend due to temporary issues in allocation of blade or obtaining user image.

     This publication is a method to allow improve the boot time to the client blade. This is accomplished by using a person badge entry on to the site to start the boot process. Most badge systems (magnetic strip, radio frequency, etc.) all use a database on a server. This is required to validate the badge allows the user entry into the site and/or building/room, etc.. When a user badges in we pass a token from the security badge server to the data center which hosts the client blades. The data center will than start the boot process by doing the following pre-staging activities that could be undertaken, pre- allocation o...