You can set the time delay by using the "systemsetup" command. Follow these steps:
1. Open Terminal (/Applications/Utilities/).
2. Type: sudo systemsetup -setWaitForStartupAfterPowerFailure seconds
Note: Replace "seconds" with the delay time in multiples of 30 seconds. For example, to allow a five-minute delay, type:
sudo systemsetup -setWaitForStartupAfterPowerFailure 300
3. Press Return.
4. Enter your administrator password when prompted, and press Return.
Example scenarios
These two examples illustrate when this feature might be required.
- Your Xserve RAID requires a minute to become available, so you set the Xserve restart delay to two minutes. The RAID is up and ready to go by the time the Xserve starts up.
- You have a large number of servers relative to your electrical circuit's capacity. To reduce load on the circuit, you decide to stagger the startup time of the servers so that they start up over several minutes.