Kashya adds CDP to DR

By Ann Silverthorn

—Kashya today announced the addition of a continuous data protection (CDP) module to its KBX5000 disaster-recovery and remote replication appliance. Kashya claims that it's the only CDP solution to use intelligent fabric and policy-based protection to guard against any type of failure, including a complete site disaster. The company also claims that the KBX5000 can deliver up to 25:1 compression.

The KBX5000 CDP backs up data at the block level rather than the file level.

Kashya also added application integration, backup integration, and retention policies to the appliance.

The device allows users to recover to a certain point in time or to a specific "bookmark." "The product addresses the issue of application consistency," says Mehran Hadipour, Kashya's vice president of business development and OEM sales. "We've done some integration with databases in the application environment that allows intelligent bookmarks, which are metadata flags in the write CDP journal that identify a certain point in time when all the databases were completely consistent."

The product also creates another kind of bookmark through I/O analysis that looks at database transactions. At any point in a transaction, the KBX5000 CDP can trigger a commit and issue a bookmark at that instant. "As the appliance receives the data, it looks at the pattern of transactions based on the I/O pattern," Hadipour explains. "It has to know how the database writes, and then it can decide where to issue a bookmark."

Kasyha linked some of the policy-based infrastructure from the remote application to CDP as well. Administrators can set a recovery policy or recovery time objective (RTO) to a specific application. They can protect locally and/or remotely and can decide which application gets protected without having to do any programming.

Like most products in the CDP space, the KBX5000 can be integrated with standard backup software.

Kashya competes with other block-level CDP vendors such as Mendocino, Revivio, and TimeSpring.

The KBX5000, which was introduced two years ago, can capture data from heterogeneous storage devices and replicate it over any distance. In May, Kashya introduced support for Cisco's SANTap Service for fabric-based replication.

Kashya's OEM customers usually provide their own hardware. For direct sales, the company uses an IBM X Series server with dual Xeon processors, 2GB of cache, and QLogic host bus adapters. Pricing is based on the number of terabytes protected.

This article was originally published on July 19, 2005