QuantaStor SDS grids enable the provisioning of scale-out Network Attached Storage (NAS) shares that are accessible using standard CIFS/SMB and NFS protocols as well as via the GlusterFS client protocol for maximum performance. QuantaStor uses integrated GlusterFS scale-out file system technology to aggregate storage from multiple appliances together to form a “single-namespace."  Scale-out NAS shares support both replica style mirroring for data protection and high availability as well as erasure coding.

QuantaStor's Scale-out NAS is ideal for unstructured data, backup and archive, and media use cases. Read/write performance via CIFS/NFS can be improved through the use of SSDs as read/write cache. For deployments accessing scale-out NAS storage from Linux, the native GlusterFS client provides the best performance as I/O can be directed to the correct appliance without an intermediary hop. 


Scale-out NAS Key Features

Simplified Management with Grid Technology
QuantaStor Grid management technology enables companies to start small and grow to hyper-scale with ease. Grids greatly simplify management by linking appliances together so that they can be managed as a single unit that spans sites and data centers. Appliances within a grid can be comprised of a heterogeneous mix of hardware from different vendors and may include multiple independent scale-out NAS clusters.

Smart Layout, Smart Provisioning
GlusterFS combines "bricks" of storage into volumes which are accessible as a single-namespace. This can be a complex and error prone task when done manually using low-level GlusterFS tools but QuantaStor makes it easy. Brick creation, selection, data placement and distribution calculations are all done automatically to ensure dispersal of data across the volume. With just a few clicks, users are able to provision new scale-out NAS storage with data replication or an erasure coding layout policy.

Highly-available NFS/SMB
Traditional file protocols like NFS and SMB are point-to-point between each client and a specific NAS appliance IP address. In order to ensure that these clients are able to continue accessing the scale-out NAS storage in the event of a hardware outage, the IP address must be virtual and must float to another NAS cluster member automatically. QuantaStor allows an IT administrator to associate a Gluster Virtual IP address to any scale-out NAS volume. This can also be used to load-balance traffic by directing specific clients to specific virtual IPs.

Further Reading:
Deploying a High Availability Storage Cluster with GlusterFS
Scale-out NAS Administrators Guide