Brocade Communications Systems, Inc.

William R Mahoney

Bill Ying Chin

Bill Jianqiang Zhou

Vineet M Abraham

Xupei Liang

Aditya Saxena

Ilya Ratner

Tushar Desai

Surendranadh Madineni

In computing systems that provide multiple computing domains configured to operate according to an active-standby model, techniques are provided for intentionally biasing the race to gain mastership between competing computing domains, which determines which computing domain operates in the active mode, in favor of a particular computer domain. The race to gain mastership may be biased in favor of a computing domain operating in a particular mode prior to the occurrence of the event that triggered the race to gain mastership. For example, in certain embodiments, the race to mastership may be biased in favor of the computing domain that was operating in the active mode prior to the occurrence of an event that triggered the race to gain mastership.

Biasing active-standby determination

Techniques for persisting data stored in volatile memory across a warm boot. One or more portions (referred to as 'warm memory') of volatile memory of the system can be reserved and configured such that the data stored by these portions is not affected by a warm boot thereby resulting in the data stored being persisted across a warm boot.

Persisting data across warm boots

Techniques for achieving high-availability using a single processor (CPU). In a system comprising a multi-core processor, at least two partitions may be configured with each partition being allocated one or more cores of the multiple cores. The partitions may be configured such that one partition operates in active mode while another partition operates in standby mode. In this manner, a single processor is able to provide active-standby functionality, thereby enhancing the availability of the system comprising the processor.

Achieving ultra-high availability using a single CPU

Growing community of inventors

Campbell, CA, United States of America

William R Mahoney