Since adding support for 6 TB Helium drives, hybrid NAS vendor Panasas has changed the way it protects and moves all of that extra data on its systems. The vendor came up with a new triple-parity RAID scheme months ago, and this month added a high-speed parallel replication and file transfer application that runs on Panasas ActiveStor storage appliance.
Panasas SiteSync also runs on other Linux-based systems for disaster recovery, disk-to-disk backup and remote archive applications.
Geoffrey Noer, Panasas’ vice president of product management, said SiteSync is designed to move large amounts of unstructured data across the wire. Customers can use up to 64 compute clients, in which each system replicates a portion of the data and shares the workload that is moved in parallel. The software supports Panasas appliance and other heterogeneous storage systems. Panasas claims SiteSync can move data 10 times as fast as other file transfer utilities.
Noer called SiteSync “ scale-out replication designed for scale-out storage. It gives us a scale-out engine for data replication. You can migrate data from third-party storage systems, from Panasas or to Panasas or between Panasas systems.The parallel design is really the primary difference. It supports data migration and replication.”
Noer said SiteSync, which does a full data-replication and subsequent delta changes, can be used for both local area network (LAN) and wide area network (WAN) data movement. But the short-term use case is for LAN-based data transfers and replication — mostly to help customers migrate to new Panasas storage.
Panasas announced ActiveStor 16 with PanFS 6.0 and RAID 6+ data protection in June when it announced support for HGST UltraStar He6 6 Terabyte helium drives. To handle the larger capacity drives, Panasas developed per-file triple-parity RAID that it said becomes more reliable and rebuilds drives faster as the system scales out.
“The short-term use case is to help customers upgrade existing file storage to PanFS 6.0 with RAID 6+ that offers customers 150 times better data protection than (other RAID),” Noer said. “This addresses a general-purpose need for accelerating LAN-based data movement and customers can use it to take advantage of RAID 6+.”