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Applications are evolving to meet the needs of an automated and connected society. The onslaught of data and the need to move it, store it and process it is quickly overwhelming current infrastructure.
Regain control of your data, streamline workflows and deliver the ultimate performance to reduce time to discovery and unlock new ways to innovate.
In our most recent product, the ActiveStor Ultra, Panasas has developed a new approach called Dynamic Data Acceleration Technology. It uses a carefully balanced set of HDDs, SATA SSD, NVMe SSD, NVDIMM, and DRAM to provide a combination of excellent performance and low cost per terabyte.
• HDDs will provide high bandwidth data storage if they are never asked to store anything small and only asked to do large sequential transfers. Therefore, we only store large Component Objects on our low-cost HDDs.
• SATA SSDs provide cost-effective and highbandwidth storage as a result of not having any seek times, so that’s where we keep our small Component Objects.
• NVMe SSDs are built for very low latency accesses, so we store all our metadata in a database and keep that database on an NVMe SSD. Metadata accesses are very sensitive to latency, whether it is POSIX metadata for the files being stored or metadata for the internal operations of the OSD.
• An NVDIMM (a storage class memory device) is the lowest latency type of persistent storage device available, and we use one to store our transaction logs: user data and metadata being written by the application to the OSD, plus our internal metadata. That allows PanFS to provide very low latency commits back to the application.
• We use the DRAM in each OSD as an extremely low latency cache of the most recently read or written data and metadata.
To gain the most benefit from the SATA SSD’s performance, we try to keep the SATA SSD about 80% full. If it falls below that, we will (transparently and in the background) pick the smallest Component Objects in the HDD pool and move them to the SSD until it is about 80% full. If the SSD is too full, we will move the largest Component Objects on the SSD to the HDD pool. Every ActiveStor Ultra Storage Node performs this optimization independently and continuously. It’s easy for an ActiveStor Ultra to pick which Component Objects to move, it just needs to look in its local NVMe-based database.
EXAScaler is ranked 26th in NAS while Panasas ActiveStor is ranked 12th in NAS with 1 review. EXAScaler is rated 0.0, while Panasas ActiveStor is rated 9.0. On the other hand, the top reviewer of Panasas ActiveStor writes "Easy to use and flexible with great performance". EXAScaler is most compared with , whereas Panasas ActiveStor is most compared with Dell EMC PowerScale (Isilon), Sonexion Scale-out Lustre Storage System, HPE 3PAR StoreServ and NetApp FAS Series.
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