Electrical computers and digital processing systems: multicomput – Computer-to-computer data addressing
Patent
1997-06-30
2000-04-04
Asta, Frank J.
Electrical computers and digital processing systems: multicomput
Computer-to-computer data addressing
709201, 709212, 709213, 709214, 709215, 709216, 709227, 709228, 709229, 709243, 709245, G06F 1516
Patent
active
060473320
ABSTRACT:
A system and method are disclosed for rendering devices on a cluster globally visible, wherein the cluster includes a plurality of nodes on which the devices are attached. The system establishes for each of the devices in the cluster at least one globally unique identifier enabling global access to the device. The system includes a device registrar that creates the identifiers and a global file system. The identifiers include a globally unique logical name by which users of the cluster identify the device and a globally unique physical name by which the global file system identifies the device. The registrar creates a one-to-one mapping between the logical name and the physical name for each of the devices. The system also includes a device information (dev.sub.-- info) data structure maintained by the device registrar that represents physical associations of the devices within the cluster. Each association corresponds to the physical name of a device file maintained by the global file system. The device registrar determines for an attached device a globally unique, device type (dev.sub.-- t) value; creates dev.sub.-- info data structure entry and a corresponding physical name; generates a logical name based on the dev.sub.-- t value and the physical name; and associates the dev.sub.-- t value with the device file representing the attached device. Given this framework, a user of the cluster can access any of the devices by issuing the global file system an access request identifying the device to be accessed by its logical name.
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Microsoft Business Systems Division, "Microsoft Windows NT.TM. Server Cluster Strategy: High Availability and Scalability with Industry-Standard Hardware" 1995, entire article.
Khalidi Yousef
Nazari Siamak
Swaroop Anil
Viswanathan Srinivasan
Asta Frank J.
Sun Microsystems Inc.
Willett Stephan
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