Required node names for basic VSS offloaded backups
VSS offloaded backups require specific node name settings.
| Proxy node type | Node name | Where to specify |
|---|---|---|
| Target node | Data Protection for Exchange ServerData Protection for SQL Server node name | Use the nodename option in the Data Protection for Exchange ServerData Protection for SQL Server options file (dsm.opt) |
| Agent node | Local DSMAGENT Node | Use the localdsmagentnode parameter in the Data Protection for Exchange ServerData Protection for SQL Server configuration file (tdpexc.cfg)(tdpsql.cfg) |
| Agent node | Remote DSMAGENT Node | Use the remotedsmagentnode parameter in the Data Protection for Exchange ServerData Protection for SQL Server configuration file (tdpexc.cfg)(tdpsql.cfg) |
- Target node
- This node name is where Data Protection for Exchange ServerData Protection for SQL Server is installed. This node name (specified with the nodename option in the Data Protection for Exchange ServerData Protection for SQL Server dsm.opt file) is referred to as the Data Protection for Exchange ServerData Protection for SQL Server node name.
- Agent node - Local DSMAGENT Node
- This node name is where the backup-archive client and VSS provider are installed. This node is responsible for processing the VSS operations as Data Protection for Exchange ServerData Protection for SQL Server itself does not process any direct VSS operations.
This node name is referred to as the Local DSMAGENT Node and is specified with the localdsmagentnode parameter in the Data Protection for Exchange ServerData Protection for SQL Server configuration file (tdpexc.cfgtdpsql.cfg by default). To specify this parameter with the Properties window of Microsoft™ Management Console (MMC), select VSS backup. From the Properties window, you can update the Local DSMAGENT Node name. Otherwise, use the tdpexcc settdpsqlc set command to specify this parameter.
- Agent node - Remote DSMAGENT Node
- This node name is a separate system that must also have the backup-archive client, VSS provider, and the Exchange System Management Tools installed (make sure you install the same level of the Exchange System Management Tools that is installed on your Exchange production server).backup-archive client and VSS provider installed. This node is responsible for moving VSS snapshot data from local shadow volumes to the IBM Storage® Protect
server. It is also responsible for doing the Exchange Integrity Check.
This node name is referred to as the Remote DSMAGENT Node and is specified with the remotedsmagentnode parameter in the Data Protection for Exchange ServerData Protection for SQL Server configuration file (tdpexc.cfgtdpsql.cfg by default). To specify this parameter with the Properties window of MMC, VSS backup. From the Properties window, you can update the Remote DSMAGENT Node name. Otherwise, use the tdpexcc settdpsqlc set command to specify this parameter.
The choice of available systems depends on whether the systems have access to the local shadow volumes that contain the VSS snapshot backups. This node name is only valid for VSS environments that support shadow copies that can be transported. You cannot specify a node name if you are using the default VSS system provider.
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If you are running offloaded backups, a dedicated (and unique) remote DSM agent node must exist for each local DSM agent node.