Monitoring and Controlling Replication
The DBEnterprise replication dialog box shows the current audit location, the number of updates, and the number of kilobytes processed anytime a Databridge Client connects to Enterprise Server for replication. (For this dialog to appear, Minimize or Normal must be selected in the Databridge Director Dialog Box.)
| To | Click |
|---|---|
| Temporarily stop Enterprise Server from sending data to the Client | Pause (the button becomes Resume) |
| Start Enterprise Server from the exact point at which it was previously paused | Resume (the button becomes Pause) |
| Stop Enterprise Server at the next quiet point* | Quit |
| Stop Enterprise Server as soon as possible, without waiting for a quiet point | Quit Now! |
*A quiet point is a point in the audit trail when the DMSII database is quiet and no program is in transaction state. This can occur naturally, or it can be forced by a DMSII sync point.
Replication Methods
Enterprise Server automatically uses the replication method most appropriate for your hardware configuration and the data set type. You can also choose a replication method in the Server MCP Disk Properties Dialog Box, provided your hardware and data support it.
| This hardware and data set type | Uses this replication method |
|---|---|
| ClearPath PC or LX computer using a Logical Disk (implemented as a normal Windows file) -or- Windows Server and MCP disks on a Storage Area Network (SAN), where the MCP disks are visible to both the MCP and Windows environment (for example, EMC or SCI disks). |
Direct disk (with or without caching) This method gives Enterprise Server direct access to the DMSII data, bypassing the network traffic between MCP, the DBServer, and Enterprise Server. After requesting basic file attribute information from the Databridge Engine, Enterprise Server reads data set disk files directly from the MCP disks without using any mainframe resources. NOTE: If MCP disks don't appear in the Enterprise Server window under the Enterprise Server system, see Detecting Visible MCP Disks. |
| Windows Server (no access to MCP disks or Logical disks) | Disk-region (Indirect disk) This method allows Enterprise Server to read disk regions like Direct Disk. However, because DBServer is used to access the disks and DMSII data must be retrieved across the network, it's significantly more resource intensive. |
Any of the previous hardware configurations when replicating the following types of data sets without a user-written DLL:
NOTE:
|
Standard Requires that DBServer provide the data record-by-record because some reformatting or other procedures must be done on the mainframe before the record can be sent. |
Server MCP Disk Properties Dialog Box
Getting there
- In the left pane of the Databridge Enterprise window, click the plus sign (+) next to the system running Enterprise Server.
- Right-click
<systemname>visible MCP disk units, and select Properties.
Use this dialog box to control how Enterprise Server accesses MCP disks. The system on which Enterprise Server is installed appears at the top of this dialog box.
For more information about the replication methods Enterprise Server uses, see Replication Methods and "Benefits of Enterprise Server" in the Databridge Installation Guide.
Method for reading MCP disks
The options are as follows: - Direct disk with Windows caching: Use this Direct Disk replication method to provide the fastest disk access and cloning. - Direct disk without caching: Use this Direct Disk replication method to avoid errors caused by delayed MCP disk writes. - Indirect disk only: Select this option only in cases where, for testing or other reasons, you must force Enterprise Server to use the Indirect Disk method when one or more MCP disks are visible.