There are three types of AdvancedCopy Manager: Storage Server, Storage Management Server, and Tape Server.
A similar rule holds for cluster systems. A cluster system with AdvancedCopy Manager's Manager function installed is referred to as a Storage Management Server, and a cluster system with AdvancedCopy Manager's Agent function installed is referred to as a Storage Server.
Cluster systems with both the Manager function and Tape Manager function installed are referred to as Tape Servers, as are cluster systems on which the Agent manager function and Tape Manager function are installed.
These categories are known as server types.
When AdvancedCopy Manager operates in a cluster system, Storage Server operations are referred to as Storage Server transactions, Storage Management Server operations are referred to as Storage Management Server transactions, and Tape Server operations are referred to as Tape Server transactions. These categories are known as server transaction types.
The server types used in AdvancedCopy Manager's cluster operation and the server transaction types that can operate on different servers are shown in the following table:
Storage Management Server transaction | Storage Server transaction | Tape Server transaction | |
|---|---|---|---|
Storage Management Server | Yes | Yes(*1) | No |
Storage Server | No | Yes(*1) | No |
Tape Server | Yes(*2) | Yes(*2) | Yes(*2) |
Tape Server | No | Yes(*2) | Yes(*2) |
Notes:
Yes (*1): The transactions that can be performed in cluster systems. Multiple cluster transactions can be performed in mutual standby systems.
Yes: The transactions that can be performed in cluster systems. Operation in a mutual standby system is only possible with a single transaction.
Yes (*2): The transactions that can be performed in cluster systems. Operation in a 1:1 active/standby system is only possible with a single transaction.
No: Transactions not included in the package.
Storage Server transactions can be included in multiple cluster transactions within a cluster system. This means that Storage Server functions can be used with each cluster transaction. On a network, users cannot tell whether a system is clustered, so it will appear as though there are multiple Storage Servers even when there is only one physical cluster system.
However, it is not possible to divide Storage Management Server transactions among multiple cluster transactions. Storage Management Server transactions are performed as a single cluster transaction on a cluster system.
Storage Management Server transactions and Storage Server transactions must be included in each cluster transaction that uses AdvancedCopy Manager functions. However, see "1.3.4 Combined operation with the scalable class" for information about combined operation with scalable class transactions.
A Storage Management Server can operate as both a Storage Management Server and a Storage Server. (For details, see "System configuration example of AdvancedCopy Manager" in the "ETERNUS SF AdvancedCopy Manager Installation Guide".) Similarly, Storage Management Server transactions can perform both Storage Management Server transactions and Storage Server transactions. (Storage Management Server transactions include the functions of Storage Server transactions.)
The Tape Server must have the Tape Manager function installed, and it is also necessary to install the Manager or Agent function beforehand.
To perform Storage Management Server transactions on a Tape Server, install the Manager function.
To perform Storage Server transactions on a Tape Server, install the Agent function.
To perform Tape Server transactions only, install the Agent function.
When the Manager function and the Tape Manager function are installed, the Tape Server can operate as a Storage Management Server, a Storage Server, and also a Tape Server.
When the Agent function and the Tape Manager function are installed, the Tape Server can operate as a Storage Server and a Tape Server. See "System configuration example of AdvancedCopy Manager" in the "ETERNUS SF AdvancedCopy Manager Installation Guide" for more information.
Similarly, when the Manager function and the Tape Manager function are installed, Tape Server transactions can perform Storage Management Server transactions, Storage Server transactions, and Tape Server transactions.
Additionally, when the Agent function and Tape Manager function are installed, Tape Server transactions can perform Storage Server transactions and Tape Server transactions.
