Disaster Tolerance (DT) vs. Disaster Recovery (DR) Cluster Extension is the key that unlocks the critical difference between Disaster Recovery (DR) and Disaster Tolerance (DT). DR products pledge that operations will resume following downtime. Cluster Extension delivers Disaster Tolerance - control over the possibility of downtime itself.
Protection against transaction data loss Because the application cluster is extended over two sites and the storage is replicated at the second site using replication methodology, data exists ubiquitously with virtually no difference (depending on the replication method) in the data storage from site A to site B. No-single-point-of-failure solution to increase the availability of company and customer data.
Fully automatic failover and failback Automated failover and failback reduces the complexity involved in a disaster recovery situation. It is protection against the risk of downtime, whether planned or unplanned.
No server reboot during failover Disks on the Server on both the primary and secondary sites are recognized during the initial system boot in a XP CLX environment; therefore LUN presentation and LUN mapping changes are not necessary during failover or failback - for a truly hand-free disaster tolerant solution.
No single point of failure Supreme redundancy: identical configuration of established SAN infrastructure redundancies are implemented on site B.
Cluster Extension Solution Implementation Service This required service offers initial consultation with a trained Services consultant to ensure the E2E solution components for the CLX Solution are properly installed and configured. This service may be expanded through the custom statement of work, to include hardware installation, cluster configuration, CLX solution testing, CLX dependency SW installation and configuration and associated documentation. To address the needs of your business, your customized SOW may also expand to include a documented design plan, which may encompass project management, design activities, tailored implementation, testing, and an orientation session. Continuing Services options offers additional protection for your Disaster Tolerant XP CLX solution. Aligning the duration of software support contracts with the duration of HP Server and/or HP array support contracts is recommended.
XP Continuous Access Journal support The use of Journal provides better protection during short link failures and can maintain journal operations during High I/O load to the primary array. Write order is maintained by using sequence numbers for each write I/O and data consistency is always guaranteed on the remote array.
XP array support XP24000/20000, XP12000/10000, XP1024/128, and XP512/48 arrays are supported on either end of the DT configuration. Whether re-purposing legacy units or adding Next-generation units to an existing XP CLX configuration, both sites are covered. See "Software Support" section for configuration requirements.
Key Selling Points
Comprehensive resource for real time protection: Provides hands-free failover/failback decision-making because it detects failures and automatically manages recovery without human intervention.
Eliminates operational delays: Requires no reboots and LUN presentation/mapping changes during failover between sites.
Highly available near instantaneous data replication: Performs read/write enabling of remotely mirrored storage, utilizing Continuous Access XP Software mirroring for high-performance synchronous and long distance asynchronous solutions.
Broadly scalable and reliable: Extends a single cluster solution over unlimited distances, supporting automatic failover of application services.
Extensive condition checking: Monitors and recovers disk pair synchronization on an application level.
Flexible and manageable: Offloads data replication tasks from the host.
Universal support: Universally supports XP12000/10000, XP1024/128, XP512/48 arrays at both the primary or secondary site.
Reliable data transfer: Assures highest standards in data integrity by maximizing the advantages of XP Continuous Access Software.
Multi OS support: Integrates with HP Serviceguard for Linux in Linux environments, Microsoft Cluster Service in Windows 2003 environments, Vertias Cluster Service in Solaris environments and HACMP AIX environments.
RRP: £3,558.00 inc VAT
2,665.79inc VAT£2,221.49 ex VAT
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