File System Types¶
SFS provides three types of file systems: SFS Capacity-Oriented, SFS Turbo, and General Purpose File System.
The following table describes the features, advantages, and application scenarios of these file system types.
SFS Capacity-Oriented¶
Parameter | Description |
|---|---|
Max. bandwidth | 10 GB/s |
Max. IOPS | 10,000 |
Latency | Latency ranges:
|
Max. capacity | 2 PB |
Highlights | Large capacity, high bandwidth, and low cost |
Application Scenarios | Cost-sensitive workloads which require large-capacity scalability, such as media processing, file sharing, HPC, and data backup. For workloads dealing with massive small files, SFS Turbo is recommended. |
General Purpose File System (BETA)¶
Parameter | Description |
|---|---|
Max. bandwidth | 5 GB/s |
Latency | 10 ms |
Max. capacity | EB |
Highlights | Large capacity, high bandwidth, and low cost |
Application Scenarios | Cost-sensitive workloads which require large-capacity scalability, such as media processing, file sharing, high-performance computing, and data backup. For workloads dealing with massive small files, SFS Turbo is recommended. |
Note
Latency refers to the minimum latency under low workload conditions. It is unstable.
Large files refer to files larger than 10 MB, and large I/Os refer to I/Os larger than 1 MB.
SFS Turbo¶
Parameter | 20 MB/s/TiB | 40 MB/s/TiB | 125 MB/s/TiB | 250 MB/s/TiB |
Max. bandwidth | 8 GB/s | 8 GB/s | 20 GB/s | 20 GB/s |
Max. IOPS | 250,000 | 250,000 | 1 million | 1 million |
Single-queue, 4 KB latency | 2-5 ms | 2-5 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 |
IOPS calculation formula | IOPS = Min. (250,000, 600 x Capacity) Capacity unit: TB | IOPS = Min. (250,000, 1,200 x Capacity) Capacity unit: TB | IOPS = Min. (1,000,000, 6,000 x Capacity) Capacity unit: TB | IOPS = Min. (1,000,000, 12,500 x Capacity) Capacity unit: TB |
Highlights | Large capacity and low cost | Large capacity and low cost | Low latency and cost effectiveness | Low latency and cost effectiveness |
Typical scenarios | 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 HPC web applications. | AI training, autonomous driving, EDA simulation, rendering, enterprise NAS, and HPC web applications. |
Parameter | Standard | Standard-Enhanced | Performance | Performance-Enhanced |
Max. bandwidth | 120 MB/s | 1 GB/s | 320 MB/s | 2 GB/s |
Max. IOPS | 3,000 | 15,000 | 20,000 | 100,000 |
Single-queue, 4 KB 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 |
Highlights | Low latency and tenant exclusive | Low latency, high bandwidth, and tenant exclusive | Low latency, high IOPS, and tenant exclusive | Low latency, high IOPS, high bandwidth, and tenant exclusive |
Typical scenarios | Code storage, file sharing, enterprise OA, and log storage. | Code storage, file sharing, enterprise OA, and log storage. | HPC websites, file sharing, content management, image rendering, AI training, and enterprise OA. | HPC websites, file sharing, content management, image rendering, AI training, and enterprise OA. |
Note
In the table, the maximum IOPS and maximum bandwidth all include both the read and write operations. So, maximum IOPS = read IOPS + write IOPS.
The expansion increment of SFS Turbo Standard, Standard - Enhanced, Performance, or Performance - Enhanced file systems is 100 GB. The expansion increment of 20 MB/s/TiB, 40 MB/s/TiB, 125 MB/s/TiB, or 250 MB/s/TiB file systems is 1.2 TB.
Maximum performance can be reached with multiple ECSs in parallel which have recommended configuration c4.4xlarge.4.