File System Types

SFS provides SFS Turbo file systems, which are further classified into Standard, Standard-Enhanced, Performance, and Performance-Enhanced.

The following table describes the features, advantages, and application scenarios of these file system types.

**Table 1** SFS Turbo file system types
Parameter	20 MB/s/TiB	40 MB/s/TiB	125 MB/s/TiB	250 MB/s/TiB	500 MB/s/TiB	1,000 MB/s/TiB
Max. bandwidth	8 GB/s	8 GB/s	20 GB/s	20 GB/s	80 GB/s	80 GB/s
Max. IOPS	250,000	250,000	1 million	1 million	1 million	1 million
Single-queue, 4 KiB latency	2–5 ms	2–5 ms	1–3 ms	1–3 ms	1–3 ms	1–3 ms
Capacity	3.6 TB to 1 PB	1.2 TB to 1 PB	1.2 TB to 1 PB	1.2 TB to 1 PB	1.2 TB to 1 PB	1.2 TB to 1 PB
Medium type	HDD	HDD	SSD	SSD	ESSD	ESSD
Highlights	Large capacity and low cost	Large capacity and low cost	Low latency and cost effectiveness	Low latency and cost effectiveness	High IOPS and high-density performance	High IOPS and high-density performance
Typical use cases	Log storage, file sharing, content management, and websites	Log storage, file sharing, content management, and websites	AI training, autonomous driving, EDA simulation, rendering, enterprise NAS, and high-performance web applications	AI training, autonomous driving, EDA simulation, rendering, enterprise NAS, and high-performance web applications	Large-scale AI training, AI models, and AI generated content	Large-scale AI training, AI models, and AI generated content

**Table 2** Previous-generation SFS Turbo file system types
Parameter	Standard	Standard-Enhanced (Discontinued)	Performance	Performance-Enhanced (Discontinued)
Max. bandwidth	150 MB/s	1 GB/s	350 MB/s	2 GB/s
Max. IOPS	5,000	15,000	20,000	100,000
Single-queue, 4 KiB latency	2–5 ms	2–5 ms	1–3 ms	1–3 ms
Capacity	500 GB to 32 TB	10 TB to 320 TB	500 GB to 32 TB	10 TB to 320 TB
Medium type	HDD	HDD	SSD	SSD
Highlights	Large capacity and low cost		Low latency and high IOPS
Typical use cases	Code storage, log storage, file sharing, and enterprise OA		High-performance website, file sharing, content management, image rendering, AI training, and enterprise OA