File Storage NAS:Create a file system

Prerequisites

File Storage NAS (NAS) is activated. The first time you visit the product page of NAS, follow the instructions to activate the NAS service.

Create a General-purpose NAS file system in the NAS console

1. Log on to the NAS console.

2. In the lower part of the Overview page, click Create General-purpose NAS File System.

3. On the General-purpose NAS (Pay-as-you-go) page, configure the parameters. The following table describes the parameters.

   Parameter	Description
   Region	Select the region in which you want to create the file system. Note We recommend that you select the region where the ECS instance on which you want to mount the file system resides. Otherwise, the ECS instance cannot access the file system. You can use Cloud Enterprise Network (CEN) to mount a file system across regions. However, a cross-region mount degrades the data transfer performance of the file system. For more information, see Use CEN to mount a NAS file system across VPCs in the same region. You can use an Alibaba Cloud account to create up to 20 General-purpose NAS file systems in each region.
   Zone	Select the zone in which you want to create the file system. Each region has multiple isolated locations known as zones. Each zone has its own independent power supply and networks. If an ECS instance and a file system reside in different zones of the same region, the ECS instance can access the file system. We recommend that you select the zone where the ECS instance resides. This reduces the latency that is caused by cross-zone communication between the file system and the ECS instance.
   Storage Class	Select a storage class for the file system. Valid values: Performance: suitable for latency-sensitive file sharing workloads that require low latency, such as Linux or Windows applications for enterprises, container persistent volumes (PVs), web content management, and genetic computing. Capacity: suitable for cost-sensitive file sharing workloads that require moderate latency, such as database backup, log storage, Windows user directory, and Linux home directory. Premium: suitable for latency-sensitive file sharing workloads that require low latency, such as container data persistence, AI training data storage, manufacturing simulation, and genetic computing. For more information about the performance comparison of the Capacity, Performance, and Premium storage classes, see General-purpose NAS file systems.
   Protocol Type	Select a protocol type for the file system. Valid values: NFS and SMB. The Network File System (NFS) protocol is suitable for file sharing among Linux ECS instances. The Server Message Block (SMB) protocol is suitable for file sharing among Windows ECS instances.
   Recycle Bin	Specify whether to enable the recycle bin feature. Valid values: Enable: enables the recycle bin feature. By default, this feature is enabled after a file system is created. After you enable the recycle bin feature, deleted files or directories are temporarily stored in the recycle bin. If you accidentally delete files from a General-purpose NAS file system, you can restore the files and the metadata of the files from the recycle bin. The metadata includes the UID, GID, and ACL. For more information, see Recycle bin. Disable: disables the recycle bin feature.
   Retention Period	If you set the Recycle Bin parameter to Enable, select the retention period of files or directories from the drop-down list.
   Encryption Type	Select the type of server-side encryption. Valid values: Not Encrypted: disables server-side encryption. NAS-managed Key: encrypts the data in the file system by using a NAS-managed key. Custom Key (KMS): encrypts and decrypts the data in the file system by using a custom key that is managed by Key Management Service (KMS). If you set the Encryption Type parameter to NAS-managed Key or Custom Key (KMS), the key that is used to encrypt the data in the file system is managed by KMS. When you access the encrypted data, the data is automatically decrypted. For more information, see Server-side encryption.
   Key ID	If you set the Encryption Type parameter to Custom Key (KMS), you must select a customer master key (CMK) ID from the drop-down list.
   Key Alias	If you set the Encryption Type parameter to Custom Key (KMS), you must make sure that the key alias is valid.
   Assign SLR	If you set the Encryption Type parameter to Custom Key (KMS), you must assign the AliyunServiceRoleForNasEncryption service-linked role to NAS. For more information, see Service-linked roles of NAS.
   Data Backup	Specify whether to enable the data backup feature. Valid values: Disable: disables the data backup feature. Enable: enables the data backup feature. If you enable the data backup feature, you can restore data to any backup point. For more information, see Back up files from a File Storage NAS file system.
   Service-linked Role	If you enable the data backup feature, you must assign the AliyunServiceRoleForNasBackup service-linked role to NAS. NAS can assume the service-linked role to access the resources of Cloud Backup. For more information, see Service-linked roles of NAS.
   (Optional) Resource Group	Select a resource group for the file system. You can use resource groups to manage NAS resources within your Alibaba Cloud account by category and group. You can manage permissions, deploy resources, and monitor resources based on groups without the need to separately process each resource. For more information, see Best practices for designing resource groups. If you do not select a resource group, the file system is automatically classified into the default resource group after the file system is created. To create a resource group, click Create Resource Group. In the Create Resource Group dialog box, configure Resource Group Identifier and Resource Group Name, and then click OK.
   Network Type	Select the network type of the mount target. In this example, select VPC.
   VPC	Select the virtual private cloud (VPC) where the ECS instance on which you want to mount the file system resides. If no VPC is available, create a VPC in the VPC console. Note You must select the VPC where the ECS instance to which you want to mount the file system resides. If you select a VPC that is different from the VPC where the ECS instance resides, you must use CEN to establish a connection between the VPCs. Then, you can mount the file system across the VPCs. For more information, see Use CEN to mount a NAS file system across VPCs in the same region.
   vSwitch	Select a vSwitch that resides in the VPC.
   Terms of Service	Select I have read and agree to NAS Limits and I have read and agree to General-purpose NAS (Pay-as-you-go) Agreement of Service.

4. Click Buy Now to create a file system.

   After a General-purpose NAS file system is created, you are charged for the file system based on the maximum storage usage on an hourly basis. For more information about the pricing of General-purpose NAS file systems, see File Storage NAS Pricing. You can purchase General-purpose NAS resource plans to offset the storage usage fees. Compared with the pay-as-you-go billing method, a resource plan offers higher discounts. A resource plan does not need to be bound to a file system and can offset the storage usage fees of multiple file systems. For more information, see Purchase resource plans.

   Note

   After a file system is created, the default permission group is attached to the file system. For information about how to modify a permission group, see Manage permission groups.

Create an Extreme NAS file system in the NAS console

1. Log on to the NAS console.

2. In the lower part of the Overview page, click Create Extreme NAS File System.

3. On the Extreme NAS (Pay-as-you-go) page, configure the parameters. The following table describes the parameters.

   Parameter	Description
   Region	Select the region in which you want to create the file system. Note We recommend that you select the region where the ECS instance on which you want to mount the file system resides. Otherwise, the ECS instance cannot access the file system. You can use Cloud Enterprise Network (CEN) to mount a file system across regions. However, a cross-region mount degrades the data transfer performance of the file system. For more information, see Use CEN to mount a NAS file system across VPCs in the same region. You can use an Alibaba Cloud account to create up to 200 Extreme NAS file systems in each region. Only Extreme NAS file systems that reside in the Chinese mainland support IPv6. To enable IPv6 in other regions, submit a ticket.
   Zone	Select the zone in which you want to create the file system. Each region has multiple isolated locations known as zones. Each zone has its own independent power supply and networks. If an ECS instance and a file system reside in different zones of the same region, the ECS instance can access the file system. We recommend that you select the zone where the ECS instance resides. This reduces the latency that is caused by cross-zone communication between the file system and the ECS instance.
   Storage Class	Select a storage class for the Extreme NAS file system. Valid values: Standard: suitable for scenarios that require high input/output operations per second (IOPS), intensive metadata operations, low latency, and moderate throughput to process a large number of small files. Advanced: suitable for scenarios that require high IOPS, low latency, and moderate throughput to process a large number of small files. Advanced Extreme NAS file systems implement remote direct memory access (RDMA) networks. Compared with standard Extreme file systems, advanced Extreme NAS file systems provide lower I/O latency and higher write performance. Note Each zone supports only one storage class of Extreme NAS file systems. We recommend that you deploy your business in a zone that supports advanced Extreme NAS file systems.
   Protocol Type	The protocol type of the file system. Extreme NAS file systems support only NFS.
   Provisioned Capacity of Extreme NAS File System	Adjust the slider to specify a capacity for the file system. Valid values: 100 GiB to 256 TiB.
   Encryption Type	Select the type of server-side encryption. Valid values: Not Encrypted: disables server-side encryption. NAS-managed Key: encrypts the data in the file system by using a NAS-managed key. Custom Key (KMS): encrypts and decrypts the data in the file system by using a custom key that is managed by KMS. If you select NAS-managed Key or Custom Key (KMS), the key that is used to encrypt the data in the file system is managed by KMS. When you access the encrypted data, the data is automatically decrypted. For more information, see Server-side encryption.
   Key ID	If you set the Encryption Type parameter to Custom Key (KMS), you must select a CMK ID from the drop-down list.
   (Optional) Resource Group	Select a resource group for the file system. You can use resource groups to manage NAS resources within your Alibaba Cloud account by category and group. You can manage permissions, deploy resources, and monitor resources based on groups without the need to separately process each resource. For more information, see Best practices for designing resource groups. If you do not select a resource group, the file system is automatically classified into the default resource group after the file system is created. To create a resource group, click Create Resource Group. In the Create Resource Group dialog box, configure Resource Group Identifier and Resource Group Name, and then click OK.
   Terms of Service	Select I have read and agree to Extreme NAS (Pay-as-you-go) Agreement of Service.

4. Click Buy Now to create a file system.

   After an Extreme NAS file system is created, you are charged based on the maximum capacity purchased for the file system on an hourly basis. For more information about the pricing of Extreme NAS file systems, see File Storage NAS Pricing. You can purchase Extreme NAS resource plans to offset the capacity fees. Compared with the pay-as-you-go billing method, a resource plan offers higher discounts. A resource plan does not need to be bound to a file system and can offset the storage usage fees of multiple file systems. For more information, see Purchase resource plans.

   Note

   The unit price displayed on the buy page of an Extreme NAS file system is the hourly fee of the file system. If you have purchased an Extreme NAS resource plan, the fee of the file system is automatically offset by using the resource plan.

Create an advanced Extreme NAS file system based on a snapshot

You can call a NAS API operation to create an advanced Extreme NAS file system based on a snapshot.

1. Install NAS SDK for Python.

   pip install aliyun-python-sdk-core
   pip install aliyun-python-sdk-nas
   pip install alibabacloud_credentials

2. Create a file system.

   Note

   Before you call an operation, you must configure environment variables and obtain access credentials from the environment variables. For more information about how to configure environment variables, see Configure environment variables in Linux, macOS, and Windows.

   #!/usr/bin/env python3
   import json
   
   from aliyunsdkcore.client import AcsClient
   from alibabacloud_credentials.client import Client
   from aliyunsdknas.request.v20170626.CreateFileSystemRequest import CreateFileSystemRequest
   
   cred = Client()  # Use the default credentials to initialize the SDK Credentials client. 
   
   
   def create_file_system():
       # The AccessKey pair (an AccessKey ID and an AccessKey secret) of an Alibaba Cloud account has permissions on all API operations. Using these credentials to perform operations can cause security risks. We recommend that you use a RAM user to call API operations or perform routine O&M. You can log on to the RAM console to create a RAM user. 
       # In this example, the AccessKey ID and AccessKey secret are saved in the environment variables. You can also save the AccessKey pair in the configuration file based on your business requirements. 
       # To prevent password leaks, we recommend that you do not save your AccessKey ID and AccessKey secret in your code file. 
       client = AcsClient(cred.get_access_key_id(), cred.get_access_key_secret(), 'cn-hangzhou')
       request = CreateFileSystemRequest()
       request.set_accept_format('json')
       # Pay-as-you-go
       request.set_ChargeType("PayAsYouGo")
       request.set_StorageType("advance")
       request.set_ProtocolType("NFS")
       request.set_FileSystemType("extreme")
       request.set_Capacity("100")
       request.set_ZoneId("cn-hangzhou-g")
       request.set_SnapshotId("s-extreme-xxxxxxxxxx")
   
       response = client.do_action_with_exception(request)
       res = json.loads(response)
       print(res)
   
   
   if __name__ == "__main__":
       create_file_system()

   The following table describes the parameters. For more information, see CreateFileSystem.

   Parameter	Description
   StorageType	The storage class of the file system. Valid value: advance, which indicates that the storage class is advanced. For example, you have created a snapshot named B_Snapshot for an advanced Extreme NAS file system. When you create another file system based on B_Snapshot, you must set the StorageType parameter to advance.
   ProtocolType	The protocol of the file system. Extreme NAS file systems support only NFSv3.
   Capacity	The storage capacity of the Extreme NAS file system that you want to create. The value of this parameter must be the same as the storage capacity of the file system for which the snapshot is created. For example, you have created a snapshot named A_Snapshot for an advanced Extreme NAS file system whose storage capacity is 100 GiB. When you create another file system based on A_Snapshot, you must set the Capacity parameter to 100.
   ZoneId	The zone in the region to which the snapshot belongs. For example, you can specify cn-hangzhou-g. You can call the DescribeZones operation to query all available zones.
   SnapshotId	The snapshot ID.

What to do next

After the file system is created, you must mount the file system on compute nodes to enable shared access. Before you mount a file system, read the usage notes. You must mount the file system based on your business scenario. For more information, see Usage notes.