Hitachi upgrades TagmaStore USP

Posted on May 22, 2006

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By Ann Silverthorn

—Hitachi Data Systems today announced upgrades to its TagmaStore Universal Storage Platform (USP), a storage controller that sits on the front-end of heterogeneous storage arrays and virtualizes the capacity of those arrays into one pool of storage. The company upgraded performance on, and added audit-logging capabilities to, the USP 100, 600, and 1100. Hitachi also announced improvements to the Universal Replicator and ShadowImage replication software that run on USP platforms.

Performance enhancements include a 25% improvement in I/Os per second (IOPS) for up to 2.5 million IOPS. Hitachi has also added 4Gbps Fibre Channel connectivity to the USP's front-end, along with tweaks to workload balancing and processor sharing. The company claims that its embedded virtualization layer can manage up to 32 petabytes.

For security and compliance purposes, Hitachi added an audit log file that creates a history of all user activity on the system. The identity of the user, the time of activity, actions performed, and result (normal completion or an error message) appear in the history.

The Universal Replicator asynchronous, heterogeneous replication software was enhanced to support 64K data volumes distributed across up to four USP systems. Up to four primary USPs with external storage can be replicated to up to four secondary USPs with external storage. In addition, the Universal Replicator's Delta Resync capability has been streamlined to only copy the differences in data from an intermediate site to a remote disaster-recovery site during a recovery in a three data-center configuration.

ShadowImage, which performs replication within any Hitachi storage system, can now perform up to 128 concurrent operations, an increase of 300% from the previous 32 concurrent operations.

Pricing for USPs ranges from approximately $600,000 for an entry-level USP100 to several million dollars for a high-end USP1100. Customers can upgrade from the smallest model to the maximum configuration as their storage requirements evolve.

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