This section explains the system configuration required for using AdvancedCopy Manager CCM.
In AdvancedCopy Manager CCM, the following two methods are available for sending the Advanced Copy command from a server in which AdvancedCopy Manager CCM is installed (hereafter referred to as "CCM Server") to an ETERNUS Disk storage system:
Sending a command to ETERNUS Disk storage system to perform an Advanced Copy function from the server over the SAN (hereafter referred to as "Copy command via SAN")
Sending a command to ETERNUS Disk storage system to perform an Advanced Copy function from the server over the LAN (hereafter referred to as "Copy command via LAN")
With AdvancedCopy Manager CCM, the ETERNUS Disk storage systems listed below can use Copy command via SAN and/or via LAN.
Device Name | Copy Command via SAN | Copy Command via LAN | ||
|---|---|---|---|---|
Operation | Firmware Version | Operation | Firmware Version | |
ETERNUS DX S4 series | A | All versions | A | All versions |
ETERNUS DX60 S2 | A | All versions | N/A | - |
ETERNUS DX60 | A | All versions | N/A | - |
ETERNUS DX400 series | A | All versions | A (*1) | V20L71 or later |
ETERNUS AF All-Flash Arrays | A | All versions | A | All versions |
(A=Available, N/A=Not Available)
*1: The acarray add command cannot be executed with the -lan option added.
Copying (REC) can only be performed between devices for which the following conditions are applicable:
The ETERNUS Disk storage system that supports the Copy command via LAN that is connected with REC. Moreover,
The ETERNUS Disk storage system specified in the -a option of the acgroup create command must be the ETERNUS Disk storage system that supports the Copy command via LAN of the above condition.
Moreover, in order to use the Copy command via LAN, it is necessary to apply the firmware version corresponding to the ETERNUS Disk storage system.
System Configuration Using Copy Command via SAN
The system configuration must meet the following requirements:
The CCM Server and the ETERNUS Disk storage system have a LAN connection.
A logical volume that connects the CCM Server and the ETERNUS Disk storage system (hereafter referred to as "access volume") exists.
With the Copy command via SAN, the Advanced Copy command is sent via an access volume from a CCM Server to an ETERNUS Disk storage system. Allocate a logical volume that belongs to the ETERNUS Disk storage system to the CCM Server as an access volume.
Figure 1.1 Sample Configuration Where Intra-box Copy Is Executed (Using Copy Command via SAN)
The system configuration must meet the following requirements:
The CCM Server and either the copy source or copy destination ETERNUS Disk storage system have a LAN connection.
An access volume that connects the CCM Server and either the copy source or copy destination ETERNUS Disk storage system exists.
With the Copy command via SAN, the Advanced Copy command is sent via an access volume from a CCM Server to an ETERNUS Disk storage system. Allocate a logical volume that belongs to either the copy source or copy destination ETERNUS Disk storage system to the CCM Server as an access volume.
Figure 1.2 Sample Configuration Where Inter-box Copy Is Executed (Using Copy Command via SAN)
Point
The registration procedure for the ETERNUS Disk storage system which uses REC and is not connected with the SAN environment (hereafter called the "remote ETERNUS Disk storage system") depends on the OS. Refer to "2.4 Registering ETERNUS Disk Storage System" for details of the registration procedure.
System Configuration Using Copy Command via LAN
The CCM Server and the ETERNUS Disk storage system must have a LAN connection.
With the Copy command via LAN, the Advanced Copy command is sent via LAN from a CCM Server to an ETERNUS Disk storage system.
Figure 1.3 Sample Configuration Where Intra-box Copy Is Executed (Using Copy Command via LAN)
The CCM Server and either the copy source or copy destination ETERNUS Disk storage system must have a LAN connection.
With the Copy command via LAN, the Advanced Copy command is sent via LAN from a CCM Server to an ETERNUS Disk storage system.
Figure 1.4 Sample Configuration Where Inter-box Copy Is Executed (Using Copy Command via LAN)
System Configuration Using Both Copy Command via SAN and via LAN
With an inter-box copy (REC), a configuration that can use both the Copy command via SAN and the Copy command via LAN is available.
Figure 1.5 Sample Configuration When Copy Command via SAN Is Used for Copy Source Device and Copy Command via LAN Is Used for Copy Destination Device
Figure 1.6 Sample Configuration When Copy Command via LAN Is Used for Copy Source Device and Copy Command via SAN Is Used for Copy Destination Device
Figure 1.7 Sample Configuration When Copy Command via LAN Is Used for Copy Source Device and Remote ETERNUS Disk Storage System Is Copy Destination Device
Point
It is recommended to not connect the copy destination logical volume to any server.
If connecting the copy destination logical volume to a CCM Server in order to perform backup to a tape, it is necessary to have the same OS installed for the business server and CCM Server.
If performing REC using the Copy command via LAN function, it is necessary that both ETERNUS Disk storage systems are able to be operated by Copy command via LAN.
Refer to "Table 1.1 ETERNUS Disk Storage Systems Supporting Copy Command via SAN and/or via LAN" for information regarding ETERNUS Disk storage systems which are able to be operated by Copy command via LAN.
If the Copy command via LAN communicates with ETERNUS Disk storage system using SSH, the processing time increases compared with the Copy command via SAN. Moreover, it may take a few minutes to execute Advanced Copy functions by using Copy command via LAN depending on the number of copy pairs to which AdvancedCopy Manager CCM executes at a time.
If a copy is specified for copy groups with two or more copy pairs in an operating environment using the Copy command via LAN, regardless of the copy specification method (command, Web Console), the total processing time in relation to that copy group can be shortened by specifying a copy in units of copy groups rather than specifying a copy for the number of copy pairs in the copy unit.
It is recommended that you operate in units of copy groups when operating two or more copy pairs with the Copy command via LAN.
