摘要:
A method, system and computer readable medium for presenting unique Serial Attached Small computer system interface (SAS) target devices through a single target device. The method includes embedding a SAS protocol chip within an initiator-connectable device, the SAS protocol chip having storage for at least two SAS addresses and configured to select a single address, loading two or more SAS addresses into the SAS protocol chip, and mapping a respective SAS address to one of the unique target devices. The system includes a SAS protocol chip having storage for at least two SAS addresses and a method for selecting a single SAS address, and a processor unit connected to the SAS protocol chip by an interface bus, the processor configured to load two or more identifier addresses into the SAS protocol chip. The computer readable medium contains instructions that cause a processor to perform the described methods.
摘要:
A system includes plural storage subsystems each having a controller and an expander to couple to storage devices. The controller accesses the storage devices through the expander, and the expander has interfaces for coupling to the storage devices. The system further includes an intercontroller link to connect expanders in two storage subsystems to enable the controller in one of the storage subsystems to communicate with the controller in another one of the storage subsystems through the expanders and the intercontroller link.
摘要:
An apparatus for controlling a heating element for heating a substance in accordance with a maximum power which is to be applied to the heating element and in accordance with a selected temperature to which the substance is to be heated is used in combination with a temperature sensing probe for sensing the temperature of the substance heated by the heating element. The apparatus includes first circuitry for generating a first control signal which is a function of the difference between the selected temperature and the sensed temperature and second circuitry for generating a second control signal which is a function of the maximum power. The apparatus also includes a relay for providing power to the heating element and circuitry responsive to the first and second control signals for selectively applying power provided by the relay to the heating element whereby the amount of power applied to the heating element is reduced as the substance approaches the selected temperature thereby avoiding overheating the substance to a temperature significantly above the selected temperature.