Datera Data Services Platform is a scale-out block and object storage solution that runs on standard x86 server hardware with internal storage devices. Datera creates clusters of from three to 64 nodes, supporting up to 6PB of storage capacity. Different server models/configurations, generations and manufacturers can be combined in a Datera cluster. DSP delivers iSCSI, iSER (RDMA) or S3 object storage using SATA/SAS or NVMe SSDs, hard disk drives or persistent memory devices resident in clustered server nodes.
Running as a bare-metal application on Linux, Datera eliminates the performance impact of running in a hypervisor or guest OS, as many SDS products do. Datera also supports NVMe and RDMA. This architecture delivers latencies of <200us, according to vendor documentation.
Each write is made first to non-volatile memory, and then acknowledged, before being coalesced and de-staged to storage media, where data services are done in the background. “Lock-less Coherency” dramatically reduces inter-node traffic, improving performance. Datera supports snapshots, clones, software-based encryption, thin provisioning, compression, deduplication, multi-tenancy and quality of service through policy-based storage management.
For data protection and availability, Datera creates up to five copies of each volume (divided into “chunks”) and distributes them across the drives and nodes, essentially a RAID 10 scheme. The number of replicas is set for the volume when it’s provisioned, each synchronized automatically and able to service I/O requests. Datera also features remote synchronous replication for stretched clustering configuration between primary and remote data centers.
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