Multi-node active archive for high availability and massive scalability


For many industries High Availability is critical to business operations. In addition, some organizations that rely on “just-in-time” data recall need active archive content to be available when needed. In the High Performance Computing world massively scalable archives, with capacities into exabytes, are becoming more common place. These environments require tens or hundreds of tape drives and thousands of tape media to store and retrieve massive datasets in the shortest period of time. This type of Active Archive must be accessible through common file interfaces such as SMB and NFS but also through S3 cloud interface, as this pseudo-standard becomes more mainstream.


QStar Technologies has created a new multi-node software solution which includes global namespace, high availability, load balancing and fast access to extremely large tape libraries and other archive technologies, such as disk, optical, cloud or object storage. Global ArchiveSpace™ (GAS) software uses a minimum of three computer nodes in a cluster to create one or many file systems each with a Global Namespace. The GAS software product is built on the well established QStar Archive Manager, and allows the utilization of large tape libraries supporting the numbers of tape drives beyond capabilities of a single node. Every node can access any tape media and use any tape drive to read or write data. GAS can replicate content for data protection to same or different archive technologies, and present a unified view of the archived data through SMB or NFS file systems and / or S3 cloud interfaces.

GAS network


The user application(s) are accessing the file system or bucket through many nodes of the GAS domain. Depending on the access protocol, the load can be automatically balanced between GAS domain nodes (supported by S3, HTTP/HTTPS protocols) or dedicated to a particular node with IP failover support (NFS, SMB). The files in the aggregated file system may be accessed from any GAS domain node. If any node in the domain does not own the file it will be requested through the back-end network from the owner node and delivered to the user.


The GAS software may be initially installed on three computer nodes, running Windows or Linux operating systems and additional nodes added for improved performance and/or capacity to a maximum of 64 nodes.


For data protection, mirroring or replication options are available. For environments with a single tape library identical media can be created through mirroring and the duplicate set exported as an air-gapped copy. For environments with two or more tape libraries or who wish to use other archive technologies (public or private cloud), synchronous replication is used to store the same data to up to 4 destinations.


Multi-drive option allows data to be written to multiple tape drives, allowing significant performance improvements over single tape drive writes, but without the complexities of RAIT. Data can be written in a round-robin method where all media needs to be read, or based on a subdirectory location, where perhaps, only one media need be read. This allows fast time to data as fewer tape media loads are required.

QStar Global ArchiveSpace Software High Availability / High Scalability

Platform compatibilityWindows or Linux Server from any Manufacturer (HPE, Dell, Super Micro etc)
Protocols SupportedFront-end Access through: SMB, NFS, S3, HTTP, FTP
Hardware supportAll archival storage providers of LTO and Proprietary Tape, Optical, Disk, Object Storage and Cloud Storage
Software supportQStar software integrates transparently with High Performance Computing environments and data migration software
Customer Support ServicesFull range of maintenance programs, customer support services and training
available worldwide

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