General-purpose NAS file systems are used to store hot data that is frequently accessed. General-purpose NAS file systems consist of NAS Performance file systems and NAS Capacity file systems. This topic compares the performance metrics, supported protocols, advanced features, and scenarios of NAS Capacity file systems and NAS Performance file systems. You can select the type of General-purpose NAS file systems based on your business requirements.

Item NAS Capacity NAS Performance
Peak Bandwidth The minimum bandwidth is 150 MB/s. The bandwidth increases by 0.15 MB/s per GiB. The maximum bandwidth is 10 GB/s. The minimum bandwidth is 600 MB/s. The bandwidth increases by 0.6 MB/s per GiB. The maximum bandwidth is 20 GB/s.
IOPS The maximum IOPS is 15,000. For more information, see FAQ about performance of Apsara File Storage NAS. The maximum IOPS is 30,000. For more information, see FAQ about performance of Apsara File Storage NAS.
Average latency of 4 KiB files 10 ms 2 ms
Capacity 0~10 PiB 0~1 PiB
Scaling step size 4 KiB 4 KiB
Scaling method Auto scaling Auto scaling
Supported protocols
  • NFS v3
  • NFS v4.0
  • SMB
  • NFS v3
  • NFS v4.0
  • SMB
Advanced features Performance NAS file systems support the same advanced features as Capacity NAS file systems.
Scenarios Cost-sensitive workloads that require moderate latency, such as big data analysis, file sharing, and backup. Random I/O intensive and latency-sensitive workloads, such as enterprise applications and containers.