Dera NVMe SSD
D5850/D5450/D5430
D5457/D5437

Dera NVMe
SSD

功能特性

PCIe 3.0 x8
■ 遵循 NVMe 1.3 标准
■ 企业级数据可靠性保障
■ 1.6TB-8.0TB 容量
■ 3.2/2.9 GB/s 顺序读/写带宽, 800K/375K
随机读/写 IOPS(PCIe3.0x4)
■ 4.6/3.1 GB/s 顺序读/写带宽, 1050K/230K
随机读/写 IOPS(PCIe3.0x8)
■ 主流操作系统原生驱动支持
■ 支持 UEFI 启动
■ 支持热插拔

High Lights

PCIe 3.0 x8
■ NVMe 1.3 compliant
■ Data integrity of enterprise class
■ 1.6TB-8.0TB capacity options
■ 3.2/2.9 GB/s sequential R/W Bandwidth,
800K/375K 4KB random read/write IOPS
(PCIe 3.0 x4)
■ 4.6/3.1 GB/s sequential R/W Bandwidth,
1050K/230K 4KB random read/write IOPS
(PCIe 3.0 x8)
■ Native driver support of mainstream
operating systems and hypervisors
■ UEFI bootable
■ Surprise hot-pluggable

软硬件协同设计
DERA NVMe SSD的核心控制芯片是紫光得瑞基于软硬件协同理念自主设计开发的 ASIC,
立足于企业级数据可靠性保障、闪存管理和性能聚合等核心技术,集成了大量专用计算硬件加速单元。结合 FTL
管理软件的高效调度,D5000/D5007系列实现了高可靠、高性能的数据存储功能。
SOFTWARE--HARDWARE CODESIGN
The ASIC controller of DERA NVMe SSD is developed by DERA with
software-hardware co-designmethodology. Built-in with many purpose-specific hardwareunits, the
controller enables enterprise-class data integrity,sophisticated NAND flash management, and
performanceaggregation in a power-efficient way. Orchestrated by the FTLdesigned at the same pace
with the controller,D5000/D5007 series deliver reliable and highperformance NVMe storage
features.
数据可靠性
DERA NVMe SSD 的控制器芯片集成了高强度 ECC 硬件编解码单元,检测并纠正 NAND
介质访问的数据错误。在此基础上,对完整数据通道的端到端保护、NAND 自适应冗余保护机制、意外掉电检测及
处理为数据完整性提供更多保障。D5000/D5007在运行过程中动态监测设备温度并实时处理,避免因散
热条件不足导致设备损坏丢失数据,降低了运维复杂度。
Data Integrity
The intense hardware ECC units built in D5000/D5007 series throttle errors occurred during accesses
to NAND device.D5000/D5007 series also implement end-to-endprotection on the whole data
paths against silent errors,adaptive redundancy protection among independent NANDunits, and
protection against unexpected power-losses, whichare forged into an integrated protection for user
data. Inaddition, D5000/D5007 series constantly sense thetemperatures on board once
powered on and react in realtime accordingly to keep the devices from overheatingdisasters,
decreasing the daily operation complexities.
平稳的性能
DERA NVMe SSD 的管理算法充分预计了高压力下的极端情况和工作负载的多变性,对前
端 I/O请求和后台行为进行了精细调度和控制,确保在任何情况下性能表现平稳。DERA NVMe SSD
的随机读写性能可以在相当高的负载压力下,保持 90%以上的一致性。
[1] 测量范围为100% LBA,表中OIO64对应TC=1,QD=64
[2] 测量范围为100% LBA,使用OIO256(TC=4,QD=64)进行测试,TC表示线程数/Worker数量,QD表示队列深度,OIO为总队列深度
[3] 测量范围为100% LBA,使用OIO1(TC=1,QD=1)进行测试
[4] 测量范围为100% LBA。顺序读/写采用128KB,OIO64(TC=1,QD=64)进行采样。随机读写采用4KB,OIO256(TC=4,QD=64)进行采样。采样间隔100ms
版权所有 © 北京紫光得瑞科技有限公司 2019。 保留一切权利。
由于实践中存在很多不确定因素,可能导致实际结果与预测信息有很大的差别。因此,本文档信息仅供参考,不构成任何要约或承诺。可能不经通知修改上述信息,恕不另行通知。
Stable Performance
The FTL algorithm of D5000/D5007 series sufficientlyanticipate the extreme conditions of
highly-intense workloadsand workload variations with sophisticated scheduling andcontrols over
front-end I/O demands and FTL backendactivities, ensuring a stable performance in all cases.
D5000/D5007 series deliver a performanceconsistency above 90% in significantly heavy
random I/Oworkloads.
[1] 100%LBA, OIO 64(TC=1, QD=64)
[2] 100%LBA,measured with OIO256 (TC=4, QD=64).
[3] 100%LBA, OIO1 (TC=1, QD=1)
[4] 100%LBA. Sequential R/W power consumption is measured with 128KB, OIO64(TC=1,QD=64) which is lower than Random operation. Random R/W measured with 4KB, OIO256(TC=4, QD=64). Scope trigger over 100ms sample period.
Copyright ©DERA Co., Ltd 2019. All rights reserved.
Product specifications provided are sample specifications and do not constitute a warranty. Specifications and designs aresubject to change without notice