This topic describes how to create a file gateway and configure shares for the file gateway in the Cloud Storage Gateway (CSG) console.
Prerequisites
An Alibaba Cloud account is created and real-name verification for the account is complete. For more information, see Create an Alibaba Cloud account.
NoteWe recommend that you create a RAM user and log on to the CSG console as the RAM user.
CSG is activated. If CSG is not activated, follow the on-screen instructions in the CSG console to activate CSG.
A virtual private cloud (VPC) is available in the region where you want to create the file gateway. For more information, see Create a VPC with an IPv4 CIDR block.
An Elastic Compute Service (ECS) instance is created on the VPC in the region where you want to create the file gateway.
NoteIf your on-premises host is connected to the VPC over an Express Connect circuit, you can also perform the steps by using the host.
An OSS bucket is created. For more information, see Get started by using the OSS console.
ImportantFile gateways support the following storage classes of OSS buckets: Standard, Infrequent Access (IA), and Archive. File gateways do not support OSS buckets for which back-to-origin routing is configured.
We recommend that you do not associate a gateway with an Archive bucket. If files that are written from a file gateway to OSS are expected to be infrequently modified, we recommend that you store the files in a Standard or IA bucket first and configure a lifecycle rule that changes the storage class of the files to Archive or Cold Archive. This reduces unnecessary restoration operations and optimizes storage costs and efficiency.
When a client writes a file to a file gateway, the gateway records at least two actions: writing the file and setting the file modification time. The gateway merges the two actions where possible. However, the gateway may still initiate multiple operations on the object to the bucket where the object is stored. The CopyObject operation is called to store the file modification time as a piece of metadata of the object in the bucket. If the object is an Archive or Cold Archive object, this operation requires object restoration, which takes some time to complete. This increases the time required for object uploads and even causes upload failures if not enough time is left to upload data in the cache.
Create a file gateway
On the Gateways page of the CSG console, click Create.
In the Create Gateway wizard, configure parameters as described in the following table and retain default settings for other parameters.
In the Confirmation step, check the configuration information. If nothing is wrong, click Completed.
After the gateway is created, the system automatically deploys and starts the gateway. It takes about 5 to 10 minutes to complete the process. The gateway enters the Running state if it is activated and deployed.
After the gateway is created, the share specified in the gateway creation process is created. If the share does not meet your requirements, you can create a new share. For more information, see Attach a cache disk and Create a share.
Attach a cache disk
On the Gateways page, click the ID of the gateway. On the page that appears, click .
Specify cache disk specifications by using Cache Calculator or Custom Cache settings.
Cache Calculator: Cache disk settings are automatically recommended based on your application requirements.
Custom Cache: You need to manually configure a cache disk type and capacity.
NoteCapacity
The supported capacity range of a cache disk varies with the gateway edition:
Basic: 40 GB to 4,096 GB
Standard: 40 GB to 8,192 GB
Enhanced or Performance Optimized: 40 GB to 32,768 GB
Type
You can select Ultra Disk, Standard SSD, or ESSD. We recommend that you select ESSD.
If you attach a cache disk to a subscription gateway, you are redirected to the cache disk purchase page. For more information, see Purchase a cache disk.
Create a share
On the Gateways page, click the ID of the file gateway. On the page that appears, click .
In the Bucket Settings step, configure the parameters described in the following table.
In the Basic Information step, configure the parameters described in the following table.
(Optional) In the Advanced Settings step, configure the parameters described in the following table.
(Optional) In the Replication Mode Advanced Settings step, configure the parameters described in the following table.
In the Confirmation step, check the configuration information. If nothing is wrong, click Completed.
Access a share
After you create a share, you can access the share from the client. For more information, see Access shares.