Extreme NAS is a high-performance file sharing service based on the latest network architecture and all-flash storage. The fully managed cloud storage service is integrated with the computing services of Alibaba Cloud to provide optimal computing performance for public cloud. This topic compares the performance metrics, supported protocols, advanced features, and scenarios of Extreme NAS file systems.

Bandwidth The maximum bandwidth is 1,200 MB/s. The bandwidth varies with the storage capacity, as shown in the following list:
• [100 GiB, 500 GiB): 150 MB/s
• [500 GiB, 2 TiB): 300 MB/s
• [2 TiB, 4 TiB): 600 MB/s
• [4 TiB, 8 TiB): 900 MB/s
• [8 TiB, 256 TiB): 1,200 MB/s
The maximum bandwidth is 1,200 MB/s. The bandwidth varies with the storage capacity, as shown in the following list:
• [100 GiB, 500 GiB): 150 MB/s
• [500 GiB, 2 TiB): 300 MB/s
• [2 TiB, 4 TiB): 600 MB/s
• [4 TiB, 8 TiB): 900 MB/s
• [8 TiB, 256 TiB): 1,200 MB/s
IOPS The IOPS varies with the storage capacity. If the I/O size is 4 KiB, you can use the following formulas to calculate the read and write IOPS:
• Read IOPS = 7,000 + 30 × Capacity (GiB). The maximum IOPS is 200,000.
• Write IOPS = 3,500 + 15 × Capacity (GiB). The maximum IOPS is 100,000.
The IOPS varies with the storage capacity. If the I/O size is 4 KiB, you can use the following formulas to calculate the read and write IOPS:
• Read IOPS = 5,000 + 50 × Capacity (GiB). The maximum IOPS is 200,000.
• Write IOPS = 2,500 + 25 × Capacity (GiB). The maximum IOPS is 100,000.
Average latency for writing 4 KiB files to a one-socket server 1.2 ms 0.3 ms
Storage capacity 100 GiB~256 TiB 100 GiB~256 TiB
Scaling step size 1 GiB 1 GiB
Scaling method Manual scaling Manual scaling
Protocol type NFS v3 NFS v3
Advanced features The advanced edition of Extreme NAS file systems also supports the same advanced features as the standard edition.
Scenarios High-performance web services and development and testing environments for continuous integration and continuous deployment (CI/CD).
Note
• The advanced edition of Extreme NAS file systems is unavailable in some zones due to infrastructure constraints. In this case, you can select the standard edition instead.
• We recommend that you create an Extreme NAS file system in the zone where your business data resides.
• You cannot change the edition of an Extreme NAS file system from standard to advanced.

Extreme NAS file systems have been upgraded since May 20, 2020. If your Extreme NAS file system was created before May 20, 2020, it has the following performance metrics, supported protocols, and advanced features. We recommend that you create another Extreme NAS file system and migrate data to the new file system. For more information, see Migrate data.

Item Standard (file systems created before May 20, 2020) Advanced (file systems created before May 20, 2020)
Bandwidth The bandwidth does not vary with the storage capacity. Minimum bandwidth: 0.15 GB/s. Maximum bandwidth: 0.3 GB/s. The bandwidth does not vary with the storage capacity. Minimum bandwidth: 0.15 GB/s. Maximum bandwidth: 0.3 GB/s.
IOPS The IOPS varies with the storage capacity. If the I/O size is 4 KiB, you can use the following formulas to calculate the read and write IOPS:
• Read IOPS = 1,000 + 30 × Capacity (GiB). The maximum IOPS is 20,000.
• Write IOPS = 1,000 + 30 × Capacity (GiB). The maximum IOPS is 10,000.
The IOPS varies with the storage capacity. If the I/O size is 4 KiB, you can use the following formulas to calculate the read and write IOPS:
• Read IOPS = 1,000 + 50 × Capacity (GiB). The maximum IOPS is 45,000.
• Write IOPS = 1,000 + 50 × Capacity (GiB). The maximum IOPS is 30,000.
Average latency for writing 4 KiB files to a one-socket server 1.2 ms 0.3 ms
Maximum capacity 32 TiB 32 TiB
Minimum capacity 100 GiB 100 GiB
Scaling step size 1 GiB 1 GiB
Scaling method Manual scaling Manual scaling
Protocol type NFS v3 NFS v3
Advanced features The advanced edition of Extreme NAS file systems also supports the same advanced features as the standard edition.