Operator initiated graceful takeover in a node cluster

Details Operator initiated graceful takeover in a node cluster Operator initiated graceful takeover in a node cluster

2005-07-19

2005-07-19

Beausoliel, Robert (Department: 2113)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C714S006130, C714S024000

Reexamination Certificate

active

06920579

ABSTRACT:
The invention is a method for operating a file server system in a cluster mode that provides for relatively rapid and reliable takeover by one file server of another. This is done by a system operator requesting takeover of file services of a file server, letting the first file server complete existing file service requests from clients, refusing further file service requests addressed to the first file server, and the one file server taking over by transferring file service requests to the one file server. As part of this takeover the one file server takes on the identity of the first filer and activates network interfaces and network addresses that replicate the first server's network addresses.

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Anupam Bhide, Elmootazbellah N. Elnozahy, Stephen P. Morgan, “A Highly Available Network File Server,” Proceedings of the Winter 1991 USENIX Conference, Jan. 21-25, 1991, pp. 199-205.

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