Apsara File Storage NAS provides multiple types of file systems. You can select one or more types based on your workloads. This helps you ensure the reliability, security, and continuity of your workloads.

Business scenarios

  • General-purpose NAS file systems: general file sharing workloads such as Linux or Windows applications for enterprises, container persistent volumes (PVs), web content management, database backup, log storage, genetic computing, Windows user directory, and Linux home directory.
  • Extreme NAS file systems: latency-sensitive Linux applications for enterprises, development and test environments for continuous integration and continuous deployment (CI/CD), high-performance web services, online education services, online gaming services, and databases.

Select file systems based on workloads

Symbol descriptions:
  • The check sign (√) indicates that the current file system type supports the feature.
  • The cross sign (×) indicates that the current file system type does not support the feature.
Capacity NAS file system Performance NAS file system Extreme NAS file system
Specification NFS SMB NFS SMB NFS
Protocol NFS v3 and v4.0 SMB v2.1 and v3.0 NFS v3 and v4.0 SMB v2.1 and v3.0 NFS v3
Client Linux (recommended) and Windows Windows (recommended) and Linux Linux (recommended) and Windows Windows (recommended) and Linux Linux
Maximum number of files 1 billion 1 billion 1 billion 1 billion 0.5 billion
Performance
Average latency for reading 4 KiB files from a one-socket server 10 ms 10 ms 2 ms 2 ms 0.3 ms
Average latency for writing 4 KiB files to a one-socket server 10 ms 10 ms 2 ms 2 ms 0.3 ms
Maximum read throughput (burst throughput) 10 GB/s 10 GB/s 20 GB/s 20 GB/s Read and write: 1.2 GB/s
Maximum write throughput (burst throughput) 5 GB/s 5 GB/s 5 GB/s 5 GB/s
Maximum IOPS 15,000 15,000 30,000 30,000 200,000
Note The actual read throughput and write throughput are affected by input and output operations depending on the size of I/O data blocks.
Elasticity
Elastic scale-in ×
Elastic scale-out √ (A step size of 1 GiB is supported.)
Data security
Server-side encryption
Encryption in transit
AD domain control × × ×
ACL-based access control × × ×
Enterprise-grade features
Quotas × ×
Subdirectory-based mounting × × × × ×
Recycle bin ×
Lifecycle management ×
Multi-zone high availability or active-active disaster recovery × × × × ×
Backup ×
Snapshots × × × ×