Restarting a Grid

To restart a grid, you must first restart all instances before attempting to reload any database.

Follow the step that matches the configuration of your grid:
- If your grid has a single management instance configuration, start the management instance.
```
% ttGridAdmin mgmtActiveStart
This management instance is now the active
```
- If your grid has an active standby configuration, follow the instructions described in Bring Back Both Management Instances to determine the best candidate for the active role and restart both the active and standby management instances.

Start all data instances.

% ttGridAdmin instanceExec -type data ttDaemonAdmin -start
Overall return code: 0
Commands executed on:
  host3.instance1 rc 0
  host4.instance1 rc 0
  host5.instance1 rc 0
  host6.instance1 rc 0
  host7.instance1 rc 0
  host8.instance1 rc 0
Return code from host3.instance1: 0
Output from host3.instance1:
TimesTen Daemon (PID: 19072, port: 6624) startup OK.
Return code from host4.instance1: 0
Output from host4.instance1:
TimesTen Daemon (PID: 19144, port: 6624) startup OK.
Return code from host5.instance1: 0
Output from host5.instance1:
TimesTen Daemon (PID: 19210, port: 6624) startup OK.
Return code from host6.instance1: 0
Output from host6.instance1:
TimesTen Daemon (PID: 19247, port: 6624) startup OK.
Return code from host7.instance1: 0
Output from host7.instance1:
TimesTen Daemon (PID: 19284, port: 6624) startup OK.
Return code from host8.instance1: 0
Output from host8.instance1:
TimesTen Daemon (PID: 19315, port: 6624) startup OK.

Reload all databases as shown in Reloading a Database into Memory.

For more information on the ttGridAdmin mgmtActiveStart and ttGridAdmin mgmtStandbyStart commands, see Management Instance Operations in Oracle TimesTen In-Memory Database Reference.

For more information on the ttGridAdmin instanceExec command, see Execute a Command or Script on Grid Instances (instanceExec) in Oracle TimesTen In-Memory Database Reference.