This topic describes how to scale up an Extreme NAS file system in the Apsara File Storage NAS console.

Prerequisites

An Extreme NAS file system is created. For more information, see Create an Extreme NAS file system.

Background information

The maximum capacity of an Extreme NAS file system is the value that you specified for the capacity parameter when you create the file system. If the storage of the Extreme NAS file system is full, data cannot be written to the file system. You must scale up the file system before the storage is full.

When you scale up an Extreme NAS file system, note the following information:
  • The file system must be in the Running state. Otherwise, the file system cannot be scaled.
  • During the scale-up, the file system is unavailable for a maximum of 90 seconds. We recommend that you scale up file systems during off-peak hours to minimize the impact on your business.
  • A file system can be scaled up but cannot be scaled down.
  • The version number of file systems that are created before May 20, 2020 is 1. The version number of other file systems is 2. You can view the version number of a file system on the details page of the file system.

    The maximum capacity of a file system of version 1 is 32 TB. The bandwidth does not increase along with the capacity. The maximum capacity of a file system of version 2 is 256 TB. If you scale up the file system of version 2, the bandwidth and performance increase along with the capacity. For more information about the performance metrics, see Extreme NAS.

    Switching between version 1 and version 2 is not supported. However, you can use Data Transport to migrate data from a file system of version 1 to a file system of version 2. For more information about how to migrate data between NAS file systems, see Background information.

  • When you scale up a file system, a snapshot is created to ensure the data safety of the file system. Therefore, a file system cannot be scaled if another snapshot is being created for the file system. We recommend that you do not scale up a file system when other snapshot jobs of the file system are running. You can also delete the running snapshot jobs before you scale up the file system.

Procedure

  1. Log on to the NAS console.
  2. In the left-side navigation pane, choose File System > File System List.
  3. Find the file system and chooseMore > upgrade in the Operations column.
  4. In the Capacity section of the upgrade pane, adjust the slider to control the capacity.
  5. In the Terms of Service section, select the check box before the terms of service. The terms of service vary depending on the billing method of the Extreme NAS file system.
    • If the billing method of the file system is Pay-as-you-go, select the check box before Extreme NAS(Pay-As-You-Go)Terms of Service.
    • If the billing method of the file system is Package Year, select the check box before Extreme NASTerms of Service.
  6. Click Buy Now and complete the payment as prompted.