Cloud Storage Gateway:Manage file gateways

Create a file gateway

1. Go to the Gateways page of the CSG console and click Create.

2. In the Create Gateway wizard, configure the parameters described in the following table and retain default settings for other parameters.

   Example

   Step	Parameter	Description
   Gateway Information	Name	Enter a gateway name. The name must be 1 to 60 characters in length and can contain letters, digits, underscores (_), hyphens (-), and periods (.). It must start with a letter.
   	Location	Select Alibaba Cloud.
   	Type	Select File Gateway.
   	Region	Select the region where you want to deploy the file gateway.
   Gateway Configurations	VPC	Select the VPC in which you want to deploy the gateway. Note The VPC must be the same one where your ECS instance or on-premises host resides.
   	VSwitch	Select the vSwitch to which the gateway connects. Note The vSwitch must be the same one to which your ECS instance or on-premises host connects. If no gateway resources are available in the zone of the selected vSwitch, create a vSwitch in a different zone.
   	Edition	Select Basic, Standard, Enhanced, or Performance Optimized. For more information, see Specifications.
   Config Protocol	Cross-region Binding	Yes: Allows access to buckets in different regions. No: Restricts access to buckets within the same region as the gateway.
   	OSS Endpoint	Select the endpoint for the region where the bucket resides.
   	Bucket Name	Select an existing bucket from the drop-down list. To map the share to a subdirectory, select the Subdirectory check box and enter the subdirectory path. The name of a subdirectory can contain only letters and digits. From V1.0.38 onwards, the root directory of the file system can be mapped to an OSS bucket subdirectory for access isolation. The subdirectory can be an existing or new directory in the OSS bucket. After the share is created, this subdirectory serves as the root directory and stores all related files and directories. File gateways do not support OSS buckets with back-to-origin routing configured. Buckets with retention policies are not supported because CSG cannot guarantee single-write operations on objects.
   	Public Network Bandwidth	Specify the public bandwidth. This parameter is available only when Cross-region Binding is set to Yes. The default bandwidth is 5 Mbit/s. Increase the bandwidth for better data transfer performance. Note To use the gateway or the express synchronization feature across regions, configure this parameter. For more information, see Configure a public bandwidth limit. The public bandwidth ranges from 5 Mbit/s to 200 Mbit/s.
   	Protocol	Select the protocol for connecting to the OSS bucket: NFS or SMB. Select NFS to access the bucket from a Linux system. Select SMB to access the bucket from a Windows system.
   	Share Name	Enter a name for the share. If Protocol is set to NFS, the share name also serves as the virtual path for NFSv4 mount operations. Note The name must be 1 to 32 characters in length and can contain letters, digits, underscores (_), hyphens (-), and periods (.). It must start with a letter.
   	User Mapping	Configure the user mapping between the NFS client and the NFS server. This parameter is available only when Protocol is set to NFS. Valid values: none: NFS client users are not mapped to the nobody user on the NFS server. root_squash: The root user on the NFS client is mapped to the nobody user on the NFS server. all_squash: All NFS client users are mapped to the nobody user on the NFS server. all_anonymous: All NFS client users are mapped to the anonymous user on the NFS server.
   	Reverse Sync	Specify whether to synchronize object metadata from the bucket to your local device. Reverse synchronization is useful for disaster recovery, data recovery, and data sharing. Note During reverse synchronization, the system scans all objects in the bucket. If the bucket contains a large number of objects, OSS API call fees apply. For more information, see Pricing.
   	Reverse Sync Interval	Required when Reverse Sync is set to Yes. Valid values: 15 to 36000. Unit: seconds. Note For buckets with a large number of objects, set the interval to a value greater than 3,600 seconds. Otherwise, frequent scans increase OSS API call fees.
   	Cache Disk Type	Select Ultra Disk, Standard SSD, or ESSD based on your requirements.
   	Cache Capacity	The capacity of a cache disk for a Basic gateway ranges from 40 GB to 4,096 GB. The capacity of a cache disk for a Standard gateway ranges from 40 GB to 8,192 GB. The capacity of a cache disk for an Enhanced or Performance Optimized gateway ranges from 40 GB to 32,768 GB.
   Billing Information	Billing Method	Select Pay-as-you-go or Subscription. For more information, see Billing. If you select Subscription, you are redirected to the subscription purchase page after you create the file gateway. Complete the payment.
   	Expiration Policy	Expiration policy for the gateway subscription. Select Switch to Pay-as-you-go or Release.

3. In the Confirmation step, verify the configuration and click Completed.