Modern business continuity solutions keep business applications and customer services available, day and night, by design. Any application down time, whether planned or unplanned, must be minimal and invisible to customers – without loss of service or data.
The HP NonStop business continuity solution suite comprises seven key software products which work together to create and protect copies of critical databases and other essential application files across multiple systems, ensuring continued service availability in the event of planned or unplanned system outage:
HP NonStop TMF software is the core of fault- and disaster-tolerant computing on HP NonStop servers, enabling instant and transparent takeover within a single system in the event of a hardware or software component failure.
HP NonStop RDF software allows you to create a disaster recovery environment across multiple NonStop systems or physical sites, using Expand system interconnect, where the database on each system is identical in structure.
The HP NonStop Shadowbase product suite comprises several products addressing business continuity, data replication, data and application integration, zero downtime migration, and other utilities to deliver a true 24×7 “nonstop” enterprise. Shadowbase solutions complements RDF by providing additional capabilities such as support for TCP/IP interconnect and replication between both homogeneous and heterogeneous platforms and databases.:
HP NonStop AutoTMF software enables applications not currently invoking TMF protection to do so automatically. Not only do you get better transaction protection through the use of audited database files, but also your application actually performs better because TMF merges multiple transactions into one disk write.
Whereas RDF and Shadowbase software stream transactional database file changes to one or more systems, HP NonStop AutoSYNC software uses whole file replication to automatically synchronize any kind of file across multiple systems.
Working in cooperation with RDF or (in the near future) Shadowbase software, HP NonStop SDR software makes sure that when performing NonStop SQL/MP Data Definition Language (DDL) operations, such as creating a table, adding a column or moving a partition, these changes will be automatically replicated and implemented at the correct point in the data replication stream on the backup database.
It is of no use having data available on alternate systems if the applications required to provide the business services are not also available. This requirement is partly addressed by Pathway domains across nodes (a feature of the HP NonStop TS/MP product), which allows Pathway serverclasses to be distributed across multiple NonStop server systems. In the event of planned or unplanned system outages, Pathway user requests are automatically routed to the serverclasses running on remaining systems, thereby preserving application availability. In addition, by configuring applications within a Pathway domain across multiple HP NonStop nodes, application scalability is increased by automatic workload distribution across those systems.
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