오버 프로비저닝
오버 프로비저닝(Over Provision, OP)은 드라이브의 수명, 내구성 및 성능을 극대화하기 위해 SSD 가용 공간의 일정 비율을 할당합니다. 드라이브 컨트롤러가 드라이브의 모든 데이터 트래픽과 스토리지를 관리할 수 있도록 영구적인 "스왑 공간"을 제공함으로써 이를 실현합니다.
OP는 SoC 컨트롤러 펌웨어, 최적화된 GC 및 WL을 저장하는 데 사용되는 것 외에도 예비 블록(Spare Block)으로 지정된 공간입니다. SSD를 일정 기간 사용하면 불량 블록이 발생할 수 있습니다. 이때 OP 공간의 예비 블록으로 불량 블록을 교체하여 낸드 플래시 수명 주기 동안 마모와 손실을 줄이고 SSD의 성능을 유지할 수 있습니다.
일반적으로 SSD의 7%가 OP용으로 할당되어 있습니다. 3D TLC SSD의 경우, 소비자용 PC와 같이 비집약적 쓰기 워크로드는 7%의 OP 공간으로 충분합니다. 품질이 좋지 않은 경우에는 더 많은 불량 블록이 발생하므로 더 많은 OP 공간이 필요합니다.
더 높은 쓰기 성능과 P/E 빈도가 요구되는 엔터프라이즈 애플리케이션을 위해 SSSTC는 더 큰 OP 공간을 설계합니다. 이것은 WL을 최적화하면서 GC를 위한 임시 작업 공간으로 사용되어 낸드 플래시의 P/E 빈도를 줄임으로써 SSD의 수명을 연장할 수 있습니다.
SATA SSD
7680GB / 15360GB
NAND Flash: 3D TLC NAND Flash
Interface: SATA 3 (6Gb/s)
Sequential Read: UP to 550 MB/s
Sequential Write: UP to 530 MB/s
NVMe™ SSD
512GB / 1024GB / 2048GB / 4096GB
NAND Flash: 3D TLC NAND Flash
Interface: PCIe® Gen5 x4
Sequential Read: UP to 14,000 MB/s
Sequential Write: UP to 12,000 MB/s
NVMe™ SSD
40GB / 80GB / 160GB / 320GB / 640GB /1280GB
NAND Flash: 3D TLC NAND Flash
Interface: PCIe® Gen3 x4
Sequential Read: 3,100 MB/s
Sequential Write: 1,500 MB/s
NVMe™ SSD
40GB / 80GB / 160GB / 320GB / 640GB /1280GB
NAND Flash: 3D TLC NAND Flash
Interface: PCIe® Gen3 x4
Sequential Read: 3,100 MB/s
Sequential Write: 1,500 MB/s
NVMe™ SSD
960GB / 1600GB / 1920GB / 3200GB / 3840GB / 7680GB
NAND Flash: 3D TLC NAND Flash
Interface: PCIe® Gen4 x4
Sequential Read: UP to 6600 MB/s
Sequential Write: UP to 3500 MB/s
SATA SSD
240GB / 480GB / 960GB / 1920GB
NAND Flash: 3D TLC NAND Flash
Interface: SATA 3 (6Gb/s)
Sequential Read: UP to 520 MB/s
Sequential Write: UP to 520 MB/s
NVMe™ SSD
3840GB
NAND Flash: 3D TLC NAND Flash
Interface: PCIe® Gen5 x4
Sequential Read: UP to 14,000 MB/s
Sequential Write: UP to 7,500 MB/s
SATA SSD
128GB / 256GB / 512GB / 1024GB / 2048GB
NAND Flash: 3D TLC NAND Flash
Interface: SATA 3 (6Gb/s)
Sequential Read: UP to 500 MB/s
Sequential Write: UP to 260 MB/s
SATA SSD
128GB / 256GB / 512GB / 1024GB / 2048GB
NAND Flash: 3D TLC NAND Flash
Interface: SATA 3 (6Gb/s)
Sequential Read: UP to 500 MB/s
Sequential Write: UP to 260 MB/s
SATA SSD
40GB / 80GB / 160GB / 320GB / 640GB
NAND Flash: 3D TLC NAND Flash
Interface: SATA 3 (6Gb/s)
Sequential Read: UP to 550 MB/s
Sequential Write: UP to 510 MB/s
SATA SSD
40GB / 80GB / 128GB / 160GB / 256GB / 320GB / 640GB
NAND Flash: 3D pSLC(TLC)
Interface: SATA 3 (6Gb/s)
Sequential Read: Up to 550 MB/s
Sequential Write: Up to 510 MB/s
SATA SSD
40GB / 80GB / 160GB / 320GB / 640GB
NAND Flash: 3D pSLC(TLC)
Interface: SATA 3 (6Gb/s)
Sequential Read: Up to 550 MB/s
Sequential Write: Up to 510 MB/s
NVMe™ SSD
80GB / 160GB / 320GB
NAND Flash: 3D pSLC(TLC)
Interface: PCIe® Gen4 x4
Sequential Read: UP to 3700 MB/s
Sequential Write: UP to 2600 MB/s
NVMe™ SSD
3200GB / 3840GB / 6400GB / 7680GB / 12800GB / 15360GB
NAND Flash: 3D TLC NAND Flash
Interface: PCIe® Gen5 x4
Sequential Read: UP to 14000 MB/s
Sequential Write: UP to 7500 MB/s
NVMe™ SSD
80GB / 160GB / 256GB / 320GB
NAND Flash: 3D pSLC(TLC)
Interface: PCIe® Gen4 x4
Sequential Read: UP to 3700 MB/s
Sequential Write: UP to 2600 MB/s
NVMe™ SSD
128GB / 256GB / 512GB / 1024GB / 2048GB /4096GB
NAND Flash: 3D TLC NAND Flash
Interface: PCIe® Gen3 x4
Sequential Read: 3,100 MB/s
Sequential Write: 1,500 MB/s
NVMe™ SSD
128GB / 256GB / 512GB / 1024GB / 2048GB /4096GB
NAND Flash: 3D TLC NAND Flash
Interface: PCIe® Gen3 x4
Sequential Read: 3,100 MB/s
Sequential Write: 1,500 MB/s
NVMe™ SSD
256GB / 512GB / 1024GB / 2048GB
NAND Flash: 3D TLC NAND Flash
Interface: PCIe® Gen4 x4
Sequential Read: UP to 6,800 MB/s
Sequential Write: UP to 4,800 MB/s
NVMe™ SSD
256GB / 512GB / 1024GB
NAND Flash: 3D TLC NAND Flash
Interface: PCIe® Gen4 x4
Sequential Read: UP to 3700 MB/s
Sequential Write: UP to 2600 MB/s
NVMe™ SSD
256GB / 512GB / 1024GB
NAND Flash: 3D TLC NAND Flash
Interface: PCIe® Gen4 x4
Sequential Read: UP to 3700 MB/s
Sequential Write: UP to 2600 MB/s
NVMe™ SSD
128GB / 256GB / 512GB
NAND Flash: 3D TLC NAND Flash
Interface: PCIe® Gen3 x4
Sequential Read: UP to 2000 MB/s
Sequential Write: UP to 1100 MB/s
NVMe™ SSD
128GB / 256GB / 512GB / 1024GB
NAND Flash: 3D TLC NAND Flash
Interface: PCIe® Gen3 x4
Sequential Read: UP to 2000 MB/s
Sequential Write: UP to 1100 MB/s
NVMe™ SSD
128GB / 256GB / 512GB / 1024GB
NAND Flash: 3D TLC NAND Flash
Interface: PCIe® Gen4 x4
Sequential Read: UP to 3700 MB/s
Sequential Write: UP to 2600 MB/s
NVMe™ SSD
256GB / 512GB / 1024GB / 2048GB
NAND Flash: 3D TLC NAND Flash
Interface: PCIe® Gen4 x4
Sequential Read: UP to 6000 MB/s
Sequential Write: UP to 5300 MB/s
NVMe™ SSD
256GB / 512GB / 1024GB / 2048GB
NAND Flash: 3D TLC NAND Flash
Interface: PCIe® Gen4 x4
Sequential Read: UP to 6000 MB/s
Sequential Write: UP to 5300 MB/s
SATA SSD
128GB / 256GB / 512GB / 1024GB
NAND Flash: 3D TLC NAND Flash
Interface: SATA 3 (6Gb/s)
Sequential Read: UP to 550 MB/s
Sequential Write: UP to 510 MB/s
SATA SSD
128GB / 256GB / 512GB
NAND Flash: 3D TLC NAND flash
Interface: SATA 3 (6Gb/s)
Sequential Read: UP to 550 MB/s
Sequential Write: UP to 450 MB/s
SATA SSD
128GB / 256GB / 512GB
NAND Flash: 3D TLC NAND Flash
Interface: SATA 3 (6Gb/s)
Sequential Read: UP to 550 MB/s
Sequential Write: UP to 450 MB/s
NVMe™ SSD
960GB / 1920GB / 3840GB
NAND Flash: 3D TLC NAND Flash
Interface: PCIe® Gen4 x4
Sequential Read: UP to 6500 MB/s
Sequential Write: UP to 2400 MB/s
NVMe™ SSD
1920GB / 3840GB / 7680GB
NAND Flash: 3D TLC NAND Flash
Interface: PCIe® Gen4 x4
Sequential Read: UP to 7000 MB/s
Sequential Write: UP to 4200 MB/s
NVMe™ SSD
480GB / 960GB / 1920GB / 3200GB / 3840GB
NAND Flash: 3D TLC NAND Flash
Interface: PCIe® Gen4 x4
Sequential Read: UP to 6000 MB/s
Sequential Write: UP to 2400 MB/s
SATA SSD
240GB / 480GB / 960GB
NAND Flash: 3D TLC NAND Flash
Interface: SATA 3 (6Gb/s)
Sequential Read: UP to 520 MB/s
Sequential Write: UP to 520 MB/s
NVMe™ SSD
128GB / 256GB / 512GB
NAND Flash: 3D TLC NAND Flash
Interface: PCIe® Gen3 x4
Sequential Read: UP to 2000 MB/s
Sequential Write: UP to 1100 MB/s
NVMe™ SSD
256GB / 512GB / 1024GB / 2048GB
NAND Flash: 3D TLC NAND Flash
Interface: PCIe® Gen4 x4
Sequential Read: UP to 6000 MB/s
Sequential Write: UP to 5300 MB/s
SATA
128GB / 256GB / 512GB / 1024GB
NAND Flash: 3D TLC NAND Flash
Interface: SATA 3 (6Gb/s)
Sequential Read: UP to 550 MB/s
Sequential Write: UP to 510 MB/s
SATA SSD
240GB / 480GB / 960GB / 1920GB / 3840GB
NAND Flash: 3D TLC NAND Flash
Interface: SATA 3 (6Gb/s)
Sequential Read: UP to 520 MB/s
Sequential Write: UP to 520 MB/s
SATA SSD
240GB / 480GB
NAND Flash: 3D TLC NAND Flash
Interface: SATA 3 (6Gb/s)
Sequential Read: UP to 520 MB/s
Sequential Write: UP to 520 MB/s
SATA SSD
240GB / 480GB / 960GB / 1920GB
NAND Flash: 3D TLC NAND Flash
Interface: SATA 3 (6Gb/s)
Sequential Read: UP to 550 MB/s
Sequential Write: UP to 450 MB/s
SATA SSD
128G / 256GB / 512GB / 1024GB / 2048GB
NAND Flash: 3D TLC NAND Flash
Interface: SATA 3 (6Gb/s)
Sequential Read: UP to 550 MB/s
Sequential Write: UP to 510 MB/s
SATA SSD
128G / 256GB / 512GB / 1024GB / 2048GB
NAND Flash: 3D TLC NAND Flash
Interface: SATA 3 (6Gb/s)
Sequential Read: UP to 550 MB/s
Sequential Write: UP to 510 MB/s
SATA SSD
128G / 256GB / 512GB / 1024GB / 2048GB
NAND Flash: 3D TLC NAND Flash
Interface: SATA 3 (6Gb/s)
Sequential Read: UP to 550 MB/s
Sequential Write: UP to 510 MB/s
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