ClusterMirror.ClusterScale have launched ClustorMirro, an appliance that provides businesses with a 'plug and play' database appliance with an exact physical real-time mirror. The appliance comes pre-configured and optimised for MySQL, DRBD DRBD Distributed Replicated Block Device DRBD Drug Related Birth Defect and HA-Linux. Companies with legacy dependences on expensive proprietary software and hardware are looking at how proven low-cost open source solutions such as MySQL and DRBD (Distributed Replicated Block Device) can help lower their costs without sacrificing availability, performance or scalability. Using a network-mirrored block device which employs synchronous data Synchronous data Information available at the same time. To test option-pricing models, the price of the option and of the underlying should be synchronous and reflect the same moment in the market. replication transparent to the file system, it leverages this technology with the open-source Linux Heartbeat (1) A periodic signal generated by hardware for activation and/or synchronization purposes. See MHz. (2) A periodic signal generated by hardware or software to indicate that it is still running. 1. package to provide businesses with the seamless redundancy of a database server and its applications; all data is synchronously syn·chro·nous adj. 1. Occurring or existing at the same time. See Synonyms at contemporary. 2. Moving or operating at the same rate. 3. a. Having identical periods. b. written to both nodes, with automatic failover Invoking a secondary system to take over when the primary system fails. Up-to-date copies of all required data and applications are maintained on the secondary system in order to respond immediately if the primary system becomes unusable. Also called "fallover." See replication. handled by Linux Heartbeat in a matter of seconds. www.clusterscale.com |
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