If two or more Storage Servers are installed, the following two configurations are possible:
A single Storage Server can perform the role of both Storage Management Server and Storage Server managing one or more ETERNUS disk storage systems.
A server dedicated to the role of Storage Management Server can manage one or more Storage Servers
Multiple Storage Servers can manage multiple ETERNUS disk storage systems hosted by different Storage Servers, all of which are managed by a single Storage Management Server.
A Web Client can used to manage one or more AdvancedCopy Manager configurations via an internet connection.
The Management Module uses some system resources so the performance of a Storage Server on which it is installed may be adversely affected. For this reason it is recommended that the Storage Management Server functionality (the Management Module) should be installed on a dedicated server.
The following figure shows a configuration containing multiple Storage Servers.
Figure 1.2 Multiple Storage Server configuration
Backup can only function within one of ETERNUS disk storage systems connected to a single Storage Server, while Replication can be performed across multiple Storage Servers or ETERNUS disk storage systems.
The following table shows the available copy modes.
| Intra-ETERNUS | Inter-ETERNUS | |
|---|---|---|---|
Intra-Server | Functionality | Backup and replication | Only replication |
Copy Mode | OPC/EC/QuickOPC/SnapOPC/SnapOPC+ | REC | |
Diagram |
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Inter-Server | Functionality | Only replication | Only replication |
Copy Mode | OPC/EC/QuickOPC/SnapOPC | REC | |
Diagram |
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