Apsara File Storage NAS (NAS) provides various resource plans to help you save costs. After you get familiar with the types, capacity, and offset factors of resource plans, you can purchase proper resource plans by evaluating resource usage or based on historical resource usage.
Prerequisites
You are familiar with the types, capacity, and offset factors of resource plans. For more information, see Resource plan overview.
If you purchase resource plans as a RAM user, you must grant the AliyunNASFullAccess permission on NAS file systems to the RAM user. For more information, see Perform access control based on RAM policies.
Purchasing guide
When you purchase resource plans, we recommend that you take into account the services you need, your business volume, and the region where you want to use the resource plans.
Example
Scenario
The following table provides an example of your estimated resource usage of NAS file systems in May 2022.
Region | Storage class | Resource usage |
China (Hangzhou) | Performance NAS file system |
|
China (Shanghai) | Standard Extreme NAS file system | Provisioned capacity: 200 GiB |
Advanced Extreme NAS file system | Provisioned capacity: 300 GiB |
Analysis on how to choose resource plans
The following table lists the recommended resource plan specifications based on the preceding scenario. You can also use the calculator to quickly calculate the base capacity of each resource plan.
Storage class | Billable item | Resource usage | Recommended resource plan specifications |
Performance NAS file system | Storage usage of General-purpose NAS file systems (Capacity, Performance, and Premium) | 60 GiB | Total storage usage: 60 GiB × 5.47 + 380 GiB × 0.37 = 468.8 GiB
|
Storage usage of the IA storage class | 380 GiB | ||
Read traffic of the IA storage class | 1 GiB | A NAS resource plan can be used to offset only the storage usage fees. Read and write traffic fees cannot be offset. For more information, see Resource plan overview. | |
Write traffic of the IA storage class | 2 GiB | ||
Standard Extreme NAS file system | Provisioned capacity of Extreme NAS file system | 200 GiB | Total storage usage: 200 GiB + 300 GiB = 500 GiB
|
Advanced Extreme NAS file system | Provisioned capacity of Extreme NAS file system | 300 GiB |
References
For more information about the billing of General-purpose NAS file systems, see Billing of General-purpose NAS file systems.
For more information about the billing of Extreme NAS file systems, see Billing of Extreme NAS file systems.