1.2 Supported Functions

AdvancedCopy Manager CCM supports the following Advanced Copy functions. Note that Advanced Copy is executed for each separate logical volume of ETERNUS Disk storage system.

Table 1.1 Advanced Copy Functions Supported by AdvancedCopy Manager CCM
Advanced Copy Function			AdvancedCopy Manager	AdvancedCopy Manager CCM
Snapshot type high-speed copies	OPC		A	A
	QuickOPC		A	A
	SnapOPC		A	N/A
	SnapOPC+		A	A
Synchronous high-speed copies	EC	Reversing the copy direction	A	A
	EC	Concurrent suspend function	A	A
	REC	Reversing the copy direction	A	A
		Initial copy skip function	A	A
		Concurrent suspend function	A	A
		Displaying or changing information about the REC transfer buffer	A	A

(A=Available, N/A=Not Available)

Note

If using AdvancedCopy Manager and AdvancedCopy Manager CCM together, make sure that they control different logical volumes and that the logical volumes do not interact.

See

AdvancedCopy Manager CCM can be operated on the cluster environment.
Refer to the Cluster Environment Setup Guide for more information.

The following Advanced Copy functions are supported in the Storage Cluster environment. Select the appropriate one according to your purpose.

Advanced Copy to a volume (hereafter called "non-TFOV") which is not a target of the Storage Cluster function from a TFOV
Advanced Copy from a TFOV to a TFOV by using the Storage Cluster Continuous Copy function

Note that depending on the operation configuration of the Storage Cluster environment, the support range differs with the Copy command via LAN and the Copy command via SAN.

Table 1.2 Advanced Copy Function Supported by Copy command via LAN
Advanced Copy Function		Active-Active Configuration		Active-Standby Configuration
Advanced Copy Function		From TFOV to non-TFOV	From TFOV to TFOV	From TFOV to non-TFOV	From TFOV to TFOV
Snapshot type high-speed copies	OPC	A	N/A	A	A
	QuickOPC	A	N/A	A	A
	SnapOPC	N/A	N/A	N/A	N/A
	SnapOPC+	A	N/A	A	N/A
Synchronous high-speed copies	EC	A	N/A	A	A
Synchronous high-speed copies	REC	A	N/A	A	N/A

(A=Available, N/A=Not Available)

Table 1.3 Advanced Copy Function Supported by Copy command via SAN
Advanced Copy Function		Active-Active Configuration		Active-Standby Configuration
Advanced Copy Function		From TFOV to non-TFOV	From TFOV to TFOV	From TFOV to non-TFOV	From TFOV to TFOV
Snapshot type high-speed copies	OPC	N/A	N/A	A	A
	QuickOPC	N/A	N/A	A	A
	SnapOPC	N/A	N/A	N/A	N/A
	SnapOPC+	N/A	N/A	A	N/A
Synchronous high-speed copies	EC	N/A	N/A	A	A
Synchronous high-speed copies	REC	N/A	N/A	A	N/A

(A=Available, N/A=Not Available)

Point

When performing an inter-box copy from a TFOV to a non-TFOV, restore of a TFOV is not possible if the TFO status is "Standby" due to a failover or a failback. The Storage Cluster Continuous Copy function can continue Advanced Copy or restore even if a failover or failback occur. For this reason, we recommend using the Storage Cluster Continuous Copy function.
Use Advanced Copy from a TFOV to a non-TFOV for a temporary backup, etc.
When performing an inter-box copy, use REC from a TFOV to a non-TFOV.

See

For how to perform Advanced Copy from a TFOV to a non-TFOV, refer to "3.11 Operations of Advanced Copy Using TFOV".
For how to perform Advanced Copy from a TFOV to a TFOV by using the Storage Cluster Continuous Copy function, refer to "3.12 Storage Cluster Continuous Copy Function".