Modifying Account Information

This section describes how to modify the information about an account, such as the account name.

Precautions

The name of built-in account system cannot be changed.

Procedure

Choose Resources > Access > Account.
Click More on the right of the desired account and select Modify.
The Modify Account page is displayed.

Set account parameters.

Table 1 describes related parameters.

**Table 1** Account parameters
Parameter	Description
Account Name	Name of the account. [Value range] The name must be unique. The name can contain only letters, digits, and special characters ! @ # $ % ^ * . _ + , - =. The name contains 1 to 128 characters.
Data Encryption	Whether to enable the data encryption function. After this function is enabled, the system generates an account key to protect the data keys of namespaces. The data encryption function of accounts and namespaces can be used to encrypt data written to namespaces to ensure data security. NOTE: To use the data encryption function, you need to import an advanced license. This parameter is available only when data encryption has not been enabled for the account.
Key Service	After enabling Data Encryption, you need to set Key Service and select a key management service. Internal key service: The built-in key management function of the system is used. External key service: An external key management server is used. If you select this option, you need to configure the external key service first. For details, see Managing the External Key Service.
QoS Policy	Whether to enable the QoS policy function to control the read/write OPS and bandwidth upper limits of the account. After this function is enabled, you need to set QoS policy parameters for the account.
OPS Upper Limits	OPS upper limit of a single account, that is, the maximum number of operations performed by an account per second. NOTE: This parameter is available only when QoS Policy is enabled.
Bandwidth Upper Limits	Bandwidth upper limit of a single account, that is, the maximum amount of I/O data that can be processed by a single account per second. The unit is MB/s. NOTE: This parameter is available only when QoS Policy is enabled.

Determine whether to enable the quota function. After this function is enabled, set quota parameters, as shown in Table 2.

**Table 2** Quota parameters
Parameter		Description
Space Quota	Hard Quota	If the used file space reaches the space hard quota, the system immediately forbids writes and reports an alarm. The file space that exceeds the hard quota cannot be used. [Value range] 1 KB to 256 PB The value must be greater than those of Soft Quota and Advisory Quota. NOTE: If the used file space reaches the hard quota, the system forbids writes. If you want the system to report an alarm before writes are forbidden, set a soft quota and an advisory quota.
	Soft Quota	If the used file space reaches the space soft quota, the system reports an alarm but still allows writes. If the soft quota grace period elapses or hard quota is reached, the system immediately forbids writes and reports an alarm. [Value range] 1 KB to 256 PB The value must be greater than that of Advisory Quota and less than that of Hard Quota.
	Advisory Quota	If the used file space reaches the space advisory quota, the system reports an alarm but still allows writes. [Value range] 1 KB to 256 PB The value must be less than those of Soft Quota and Hard Quota.
	Collect Snapshot Space Statistics	Whether to collect statistics of the snapshot space included in the used file space.
File Quantity Quota	Hard Quota (K)	If the number of files reaches the file quantity hard quota, the system reports an alarm and new files cannot be added. However, operations on existing files are not affected. The unit is thousands. [Value range] 1 to 100,000,000 The value must be greater than those of Soft Quota (K) and Advisory Quota (K). NOTE: If the number of files reaches the hard quota, the system forbids file adding. If you want the system to report an alarm before files cannot be added, set a soft quota and an advisory quota.
	Soft Quota (K)	If the number of files reaches the file quantity soft quota, the system reports an alarm but new files can still be added. If the soft quota grace period elapses or hard quota is reached, new files cannot be added and an alarm is reported. The unit is thousands. [Value range] 1 to 100,000,000 The value must be greater than that of Advisory Quota (K) and less than that of Hard Quota (K).
	Advisory Quota (K)	If the number of files reaches the advisory quota, the system reports an alarm but new files can still be added. The unit of the advisory quota has been set to K. [Value range] 1 to 100,000,000 The value must be less than those of Soft Quota (K) and Hard Quota (K).
Grace Period	Soft Quota Grace Period (Days)	If the used file space or number of files reaches the soft quota, the system generates an alarm but still allows writes or new files can still be added within this period. If this period elapses, the system immediately forbids writes and new files cannot be added. In addition, an alarm is reported. [Value range] 1 to 4,294,967,294. If this parameter is not specified, the grace period is unlimited. In this case, if the used file space or number of files reaches the soft quota, the system reports an alarm but does not restrict users' writing data or adding new files. NOTE: This parameter can be set only when Soft Quota or Soft Quota (K) is set.

If you do not set any quota for the space usage or file quantity, the system does not control the space usage or file quantity.
To view the quota usage of an account, click the account name. On the account details page that is displayed, click the Quota tab and view Space Quota Usage and File Quantity Quota Usage.
If you do not enable the quota function when creating an account, you can click the account name to go to the details page after the account is created and click the Quota tab to configure a quota.

Click OK.