RMS-325

website_12x12_v5 70012TB Flash

12GB User NVRAM

NVMe PCIe x8 Gen3 Edge Card

 

Architectural Advantages

 

  • Optimal for tiering different classes of memory storage media
  • DMA engine improves system performance and offloads host resources
  • Scale NVRAM and Flash tiers proportionately as SSDs are added to the system
  • Delegated Move capability reduces traffic across the system bus and host overhead
  • Device appears as a block device that supports DMA or byte addressable mmap PIO
  • Simplifies low latency support of NVMe Direct, RDMA, or NVMe-over-Fabric implementations

The RMS-325 provides host systems with direct control over both its byte addressable User NVRAM, high capacity Flash storage, and transferring data between the two medias. The example below illustrates how the RMS-325 enables a host to write data into its on-board NVRAM, then issue a single Delegated Move command to transfer the data from NVRAM to local Flash storage.

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  • 4TB or 8TB MLC NAND Flash Capacity
  • 3TB, 6TB or 12TB TLC NAND Flash Capacity
  • User NVRAM: 4GB or 12GB
  • NVMe PCIe x8 Gen3 interface
  • Half-height, half-length form factor
  • On-board Capacitors – no cabling to remote power packs required
  • Symphonic™ CFM or Open-Channel* Flash Management mode
  • Fault Tolerant Flush-to-Flash™ Backup System
  • DuraLife™ Ultra-Capacitor Power Management System
  • DiaLog™ OEM Diagnostic Lifecycle Monitoring

 

 

 

Flash Management: Symphonic CFM or Open-Channel* mode

Today’s SSDs are encumbered by a legacy abstraction known as the Flash Translation Layer (FTL) that incurs expensive overhead, unpredictable latency spikes, and suboptimal performance that prematurely wears out the Flash media.  Alternatively, the RMS-325 provides options for Symphonic Cooperative Flash Management or the Open-Channel mode of Flash management that overcome the limitations of FTLs.

Symphonic Cooperative Flash Management

 

Open-Channel Flash management

 

Advantages of User NVRAM combined with High Capacity Flash

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Advantages over NVDIMMs

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1434855273_FEZ-03 RMS-325 Data Sheet

 

 

*Open-Channel Solid State Drives NVMe
Specification Revision 1.2, April 2016