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Sample Trigger Script for the Configuration of Multiple Hot Spare Servers

The following is an example of a trigger script that allows the configuration of multiple hot spare servers. The purpose of this is to monitor the active servers; and if they both go down or become unavailable, the hot spare servers will become active:

$commitChanges = FALSE;
$sp = srvpool::getByName(“sp00”);
$sv00 = si::getByName($sp, “sv00”);
$sv01 = si::getByName($sp, “sv01”);
$sv02 = si::getByName($sp, “sv02”);
$sv03 = si::getByName($sp, “sv03”);
// if both of these servers are down, make the other two servers active and
hot_spare these.
if ($sv00->getStatusResp() == 2 && $sv01->getStatusResp() == 2) {
       $sv00->hot_spare = TRUE;
       $sv01->hot_spare = TRUE;
       $sv02->hot_spare = FALSE;
       $sv03->hot_spare = FALSE;
       $commitChanges = TRUE;
} else if ($sv02->getStatusResp() == 2 && $sv03->getStatusResp() == 2) {
       $sv00->hot_spare = FALSE;
       $sv01->hot_spare = FALSE;
       $sv02->hot_spare = TRUE;
       $sv03->hot_spare = TRUE;
       $commitChanges = TRUE;
}
// avoid unnecessary commits by using a flag
if ($commitChanges == TRUE) {
       $sv00->commit();
       $sv01->commit();
       $sv02->commit();
       $sv03->commit();
}