DescribeFilesystemsAssociatedHpnZones - File Storage NAS

Retrieves the list of HpnZones for a file system. Access performance is optimal when compute nodes are located in one of the associated HpnZones.

Operation description

Only CPFS for Lingjun supports this operation.
You can call this operation to query up to 20 file systems at a time.

Debugging

You can run this interface directly in OpenAPI Explorer, saving you the trouble of calculating signatures. After running successfully, OpenAPI Explorer can automatically generate SDK code samples.

Debug

Authorization information

The following table shows the authorization information corresponding to the API. The authorization information can be used in the Action policy element to grant a RAM user or RAM role the permissions to call this API operation. Description:

Operation: the value that you can use in the Action element to specify the operation on a resource.
Access level: the access level of each operation. The levels are read, write, and list.
Resource type: the type of the resource on which you can authorize the RAM user or the RAM role to perform the operation. Take note of the following items:
- For mandatory resource types, indicate with a prefix of * .
- If the permissions cannot be granted at the resource level, All Resources is used in the Resource type column of the operation.
Condition Key: the condition key that is defined by the cloud service.
Associated operation: other operations that the RAM user or the RAM role must have permissions to perform to complete the operation. To complete the operation, the RAM user or the RAM role must have the permissions to perform the associated operations.

Operation	Access level	Resource type	Condition key	Associated operation
nas:DescribeFilesystemsAssociatedHpnZones	list	*FileSystem `acs:nas:{#regionId}:{#accountId}:filesystem/{#filesystemId}`	none	none

Request parameters

Parameter	Type	Required	Description	Example
RegionId	string	Yes	The ID of the region where the file system resides.	cn-hangzhou
Filesystems	array<object>	No	The collection of file system IDs. Note The maximum number of elements in the set must be less than or equal to 20.
	object	No
FileSystemId	string	No	The ID of the CPFS for Lingjun file system. Must start with `bmcpfs-`. Example: bmcpfs-290w65p03ok64ya****.	bmcpfs-290t15yn4uo8lid****

Response parameters

Parameter	Type	Description	Example
	object
RequestId	string	Request ID.	98696EF0-1607-4E9D-B01D-F20930B6****
Filesystems	array<object>	The list of HpnZones associated with the file system.
Filesystem	object	The HpnZone associated with the file system.
AssociatedHpnZones	array	The list of HpnZones supported by the file system.
associatedHpnZones	string	The HpnZone supported by the file system.	A2
ZoneId	string	The zone ID.	cn-hangzhou-k
FileSystemId	string	The ID of the CPFS for Lingjun file system.	bmcpfs-290t15yn4uo8lid****

Examples

Sample success responses

JSONformat

{
  "RequestId": "98696EF0-1607-4E9D-B01D-F20930B6****",
  "Filesystems": [
    {
      "AssociatedHpnZones": [
        "A2"
      ],
      "ZoneId": "cn-hangzhou-k",
      "FileSystemId": "bmcpfs-290t15yn4uo8lid****"
    }
  ]
}

Error codes

HTTP status code	Error code	Error message	Description
400	InvalidFilesystemType.NotSupport	This Api does not support this fileSystem type.	The current interface does not support this type of file system.
404	InvalidFileSystem.NotFound	The specified file system does not exist.	The specified file system does not exist.

For a list of error codes, visit the Service error codes.

Change history

Change time	Summary of changes	Operation
2026-01-26	Add Operation	View Change Details