This topic describes the features, specifications, and scenarios of Extreme NAS. You can select this type of NAS file system based on your business requirements.

Extreme NAS is a high-performance file sharing solution based on the latest generation of network architecture and all-flash storage. The managed cloud storage service is integrated with the computing service of Alibaba Cloud to provide the optimal computing performance.

Extreme NAS includes standard edition and advanced edition.
  • Standard edition: applicable to scenarios that require high IOPS for handling a large number of small files, intensive operations on metadata, low latency, and moderate throughput.
  • Advanced edition: applicable to scenarios that require high IOPS for handling a large number of small files, low latency, and moderate throughput. The advanced edition of Extreme NAS adopts remote direct memory access (RDMA) networking technology. The latency of read/write operations is lower and the write performance is improved compared with the standard edition of Extreme NAS.

Extreme NAS includes version 1 and 2. The version number of file systems that are created after May 20, 2020 is 2. The version number of file systems that are created before May 20, 2020 is 1. You can view the version number of a file system on the details page of the file system. Switching between version 1 and version 2 is not supported.

Features

  • Version 1: The maximum capacity is 32 TB. The bandwidth ranges from 150 MB/s to 300 MB/s.

    Version 2: The maximum capacity is 256 TB. The bandwidth ranges from 150 MB/s to 1,200 MB/s.

  • 100 microseconds of constant latency

Specifications

  • Latency: 100 microseconds of latency that ensures high operations per second (OPS) for handling small files.
  • IOPS of version 1: The IOPS of standard edition ranges from 4,000 to 20,000. The IOPS of advanced edition ranges from 6,000 to 45,000.

    IOPS of version 2: The IOPS of standard edition ranges from 10,000 to 200,000. The IOPS of advanced edition ranges from 10,000 to 200,000.

Version 1 (before upgrade):

Item Bandwidth (Unit: MB/s) Read IOPS of standard edition Write IOPS of standard edition Latency of standard edition (Unit: ms) Read IOPS of advanced edition Write IOPS of advanced edition Latency of advanced edition (Unit: ms)
100GB 150 MB/s or 300 MB/s (The throughput for handling small files is low.) 4,300 4,300 1.2 6,000 6,000 0.3
200GB 7,000 7,000 1.2 10,000 10,000 0.3
500GB 10,000 10,000 1.2 25,000 25,000 0.3
1TB 20,000 10,000 1.2 45,000 30,000 0.3
2TB 20,000 10,000 1.2 45,000 30,000 0.3
4TB 20,000 10,000 1.2 45,000 30,000 0.3
8TB 20,000 10,000 1.2 45,000 30,000 0.3
16TB 20,000 10,000 1.2 45,000 30,000 0.3
32TB 20,000 10,000 1.2 45,000 30,000 0.3

Version 2 (after upgrade):

Item Bandwidth (Unit: MB/s) Read IOPS of standard edition Write IOPS of standard edition Read IOPS of advanced edition Write IOPS of advanced edition
[100 G~ 500 G) 150 Minimum value: 10,000 + 30 × (Capacity - 100)

Maximum value: 200,000

Minimum value: 5,000 + 15 × (Capacity - 100)

Maximum value: 100,000

Minimum value: 10,000 + 50 × (Capacity - 100)

Maximum value: 200,000

Minimum value: 5,000 + 25 × (Capacity - 100)

Maximum value: 100,000

[500 G~2 T) 300
[2 T~4 T) 600
[4 T~8 T) 900
[8 T~256 T) 1,200

Scenarios

  • Applicable to latency-sensitive scenarios that handle a large number of small files.
  • Applicable to high-performance websites, DevOps, code repositories, and continuous integration (CI) environments.