Cloud Storage Gateway features - Cloud Storage Gateway - Alibaba Cloud Documentation Center

Cloud Storage Gateway (CSG) provides two types of gateways: file gateway and Internet Small Computer System Interface (iSCSI) gateway. Each type of gateway has multiple specifications. This topic describes the features supported by different specifications for each gateway type.

File gateways

File gateways support two network transmission protocols: Network File System (NFS) and Server Message Block (SMB). You can use both protocols to transfer files over LAN.

NFS allows you to access file systems on UNIX, such as AIX, HP-UX, and other Linux-based operating systems.
SMB allows you to access file systems on Windows.

Table 1. Features of file gateways

Feature		Basic	Standard	Enhanced	Performance Optimized	References
Basic features	Cache disks	√	√	√	√	Manage a cache disk
	NFS and CIFS shares	√	√	√	√	Manage shares
	Active Directory	√	√	√	√	Configure AD/DNS
Operations	Gateway modification	√	√	√	√	References
	Tag modification	√	√	√	√	Manage tags
	Gateway update	√	√	√	√	Update gateways
	Gateway specifications upgrade	√	√	√	√	Upgrade a file gateway
	Network bandwidth upgrade	√	√	√	√	Configure a public bandwidth limit
	Log upload	√	√	√	√	Log management
Advanced features	Association of a share with multiple OSS buckets	×	×	√	√	Multi-bucket Aggregation
	Reverse synchronization	√	√	√	√	Manage shares
	Express synchronization	×	√	√	√	Configure express synchronization
	Transfer acceleration	√	√	√	√	Enable transfer acceleration
	Server-side encryption	√	√	√	√	Server-side encryption
	Intelligent archiving	×	√	√	√	Manage shares
	Intelligent caching	√	√	√	√	None
	Intelligent replication	√	√	√	√	Replicate data
	Deletion ignorance	√	√	√	√	Manage shares
	MIME support	√	√	√	√	None

Note

In the preceding table, the check sign (√) indicates that the feature is supported, and the cross sign (×) indicates that the feature is not supported.

iSCSI gateways

iSCSI gateways provide data access services by using iSCSI, which is a storage technology based on the Internet and SCSI-3 protocols. iSCSI can be used to access data on Windows and UNIX.

Table 2. Features of iSCSI gateways

Feature		Basic	Standard	Enhanced	Performance Optimized	References
Basic features	Cache disks	√	√	√	√	Manage a cache disk
Basic features	iSCSI	√	√	√	√	Manage iSCSI volumes
Operations	Gateway modification	√	√	√	√	References
	Tag modification	√	√	√	√	Manage tags
	Gateway update	√	√	√	√	Update gateways
	Gateway specifications upgrade	√	√	√	√	Upgrade an iSCSI gateway
	Log upload	√	√	√	√	Log management
Advanced features	CHAP support	√	√	√	√	Create an iSCSI volume

Note

In the preceding table, the check sign (√) indicates that the feature is supported, and the cross sign (×) indicates that the feature is not supported.