Hitachi Data Replicator and Much More
by Hu Yoshida on Nov 17, 2009
This morning Hitachi Data Systems announced the addition of the Hitachi Data Replicator to our portfolio of replication and data protection software. This product is the result of a partnership with InMage Systems which was founded by our good friend Kumar Malavalli, founder and CTO for Brocade Communications and Rajeev Atluri from Gadoox. The Hitachi Data Replicator is a software replication solution that is targeted at the midrange market where a simple, cost effective, disaster recovery solution is required for a heterogeneous server and storage environments.
An installation of HDR will require that a filter driver be installed on each source and target server. After an initial base line copy is made at the local site, the light weight filter driver captures the new writes and sends them asynchronously to the HDR server. The server then captures the writes and adds markers like time stamps which support Continuous Data Protection (CDP) for lower RTO/RPO. Other markers are used to support of application specific APIs such as Microsoft VSS ad Oracle RMAN for application consistent recovery. Compression and WAN optimization is provided for efficient replication as well as encryption for security of data in-flight.
While HDR, is primarily targeted for disaster recovery in the heterogeneous midrange storage market, it has the potential to do much more.
With CDP and the ability to dial back the storage to recover from data corruption, point in time backups may not be needed.
Support of Application specific APIs will enable fast application recovery. Without support of these APIs, backups can only provide a time consistent recovery point. In order to have application recovery, the application logs would have to be run against the backup to eliminate partial transactions, and then rolled forward for transaction consistency. The APIs will establish transaction consistent recovery points which will eliminate the need to roll the logs back and forth.
Capturing and filtering the writes will eliminate a lot of redundancies which may reduce the need for downstream deduplication.
For more information contact your Hitachi Data Systems representative or reseller or check out the Hitachi Dynamic Replicator here.
This is definitely some competition to EMC Recoverpoint.
Advantage over RP: Application aware snapshots with no extra effort. From what I know EMC will soon launch these API’s. From what I read this product can also work directly with Virtualization solutions.
What we do not know is how well this performs during peak IO and while handling a huge data store. As I hear from customers RP is now quite stable and doing good job, it also has thousands of customers. RP also has the lead when it comes to integration with VMware products (Site Recovery Manager) since they both now belong to the same company.
Best of luck to both HDS and Inmage.