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Method and System for Blade Removal Security Disclosure Number: IPCOM000126975D
Original Publication Date: 2005-Aug-16
Included in the Prior Art Database: 2005-Aug-16
Document File: 1 page(s) / 21K

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This article describes a method of physically preventing removal of a processor blade from a BladeCenter Chassis, unless permission is granted from the system administrator. Currently, a blinking LED (specifically the "Location LED") on the front panel is used for blade identification in maintenance situations. However, this indicator does not prevent someone from removing a blade that the administrator does not desire to be removed.

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Method and System for Blade Removal Security

     This article describes a system that will prevent the physical removal of a processor blade. The chassis will have one interposer per slot that is mechanically controlled by the BladeCenter Chassis and is responsible for preventing removal of the blade without permission. This control can be accessed by a blade administrator via chassis commands as OEM IPMI commands or any other systems management protocol.

     Initially all blades are locked into their slot by the mechanical interposers (when the blades are inserted into the chassis the interposer automatically locks the blade into the slot, unless the system administrator instructs otherwise).

     If the system administrator desires for a specific blade to be removed (i.e. for service, hardware upgrades, etc) he/she may grant permission for release of the mechanical lock for that specific slot.

     The invention is not limited to mechanical means of securing the blade in the slot. In another embodiment, the release mechanism actuates automatically when systems management shuts down the system or critical errors occur, whereby the blade requires service. Systems management will generate an alert indicating that a slot has been released for removal of the blade, along with the reason for slot release.