Configuring a server instance to use shared memory

Configure a server instance to use shared memory to help resolve slow database backups that can occur because of Transmission Control Protocol (TCP) loopback problems.

About this task

In the following procedure, you must update the database backup node configuration for your server to enable shared memory.

server_bin_directory/dbbkapi/dsm.sys
server_instance_directory\tsmdbmgr.opt

Procedure

Ensure that the server options file, dsmserv.opt, contains the following lines:
```
COMMMethod SHAREdmem
SHMPort         1510
```
Modify the stanza for the database backup node in the client API system options file, dsm.sys.
- Remove the following lines from the stanza:
```
COMMMethod TCPip
TCPServeraddress 127.0.0.1
TCPPort 1500 
```
- Add the following lines to the stanza:
```
COMMMethod SHAREdmem
SHMPort 1510
```
Modify the stanza for the database backup node in the client API system options file, tsmdbmgr.opt.
- Remove the following lines from the tsmdbmgr.opt file:
```
COMMMethod TCPip
TCPServeraddress 127.0.0.1
TCPPort 1500 
```
- Add the following lines to the tsmdbmgr.opt file:
```
COMMMethod SHAREdmem
SHMPort 1510
```