Relax. High availability is a crucial factor in today's world of business. RTS offers a product and service portfolio designed for you to rest easy knowing your systems will simply run non-stop. With the groundbreaking storage replication technology and a lineup of availability products and tailored service offerings, we can make your life easier.


Network RAID1

RTS storage software allows non-stop storage systems with a tunable consistency model to deliver optimal performance and availability for a broad range of business requirements, including large-scale desaster recovery configurations. This leverages proven high-availability and clustering technology.


Scale-out Clustering

RTS supports transparent failover clustering for Windows Server 2008 and RHEL 5.x, based on full IETF SPC-4 compliance with persistent reservations, ALUA and I/O Fencing.


Protocol-level Redundancy

Protocol-level failover and multipathing further increase availability by minimizing the recovery times for lower-level faults.

Network RAID1

Selectable high availability. RTS storage software allows fully redundant storage system configurations (active/passive redundancy) with an adjustable consistency model to deliver optimal performance and availability for a broad range of business requirements, including globally distributed desaster recovery configurations. Fast failover times allow practically continuous operation.

Scale-out Storage Clustering

Full redundancy. RTS offers scale-out storage clusters, which delver highly-available iSCSI, FC, FCoE or InfiniBand scale-out storage solutions. You can avoid vendor lock-in by using exclusively commercial, off-the-shelf (COTS) hardware components. The storage cluster leverages proven high-availability technology, to form a tightly integrated product built on open source software components.

Consistency Model

Variable synchronicity. The resulting solution allows to dial-in the consistency and coupling level from synchronous via buffered to asynchronous depending on the distance and latency between the two redundant storage nodes. The resulting system can scale from tightly coupled synchronous storage nodes to globally distributed desaster recovery solutions.


  • Active/passive redundancy and failover.
  • Storage node pairing is completely contained in the iSCSI, FCoE, FC or InfiniBand target.
  • Tunable consistency model to select performance/availability tradeoff.

Scale-Out Clustering

Scale-out clustering with open-source pricing. By combining proven storage technology with commodity storage arrays, a growing organization can take advantage of an advanced feature set that provides reliable data protection and improved availability at the lowest cost for a wide range of operating environments.

Failover Clustering

Clustering for Windows Server 2008 and RedHat RHEL 5.x RTS storage transparently supports protocol-level redundancy and failover clustering for Windows Server 2008 and RedHat Enterprise Release 5x. These capabilities are based on advanced features like Persistent Reservations (PR), Asymmetric Logical Unit Assignment (ALUA) and I/O Fencing that are otherwise only available in high-end storage arrays. The SCSI features are implemented independently of the underlying fabric and hence can work seamlessly across multiple protocols, such as iSCSI, FC, FCoE or InfiniBand.


  • High-end end storage features like Persistent Reservations, ALUA and I/O Fencing.
  • No single point of failure within either logical or physical connections.

Protocol-Level Redundancy

Increased end-to-end availability. Protocol-level failover via Multipathing, MC/S and ERL=2 further increase end-to-end performance, resiliency and availability by minimizing the recovery times from lower-level faults. There is no other open-source iSCSI, FC, FCoE, InfiniBand target that has similarly hardened support for these advanced features.


  • Full redundancy within the iSCSI, FC, FCoE or InfiniBand protocol layer.
  • Multipathing over multiple subnets.
  • Multiple Connections per Session (MC/S) over multiple subnets.
  • Full Error Recovery (ERL=0,1,2) for iSCSI inititor and target.
  • Active/active session continuation.
  • Trunking within iSCSI, FC, FCoE and InfiniBand layer(s).
  • Aggregation of the entire available bandwidth.

Powerful and Easy High-Availability Management

Architected from ground up for High-Availability. The basic CLI and API concepts (cluster-wide storage object tree, symmetric scale-out, and a unified namespace) seamlessly extend to high availability. A storage node can be made highly available just by denoting a secondary. The library then automatically pairs the two nodes and provides a virtual floating address for the resulting highly available node (or LUNs).


  • High availability is deeply embedded into the stack and the management interface.
  • The CLI/API concepts seamlessly extend to HA, making HA simple and straightforward.