public static void processMaxSubscriptionPercent(
Integer newMaxSubscriptionPercentFromArray,
StoragePool pool,
DbClient dbClient,
RecordableEventManager eventManager) {
// get limits in vipr
int poolSubscriptionPercent =
pool.getMaxThinPoolSubscriptionPercentage() == null
? 0
: pool.getMaxThinPoolSubscriptionPercentage();
int poolUtilizationPercent =
pool.getMaxPoolUtilizationPercentage() == null ? 0 : pool.getMaxPoolUtilizationPercentage();
_logger.info(
String.format(
"StoragePool %s subscription/utilization percent limits in vipr: %s / %s",
pool.getPoolName(), poolSubscriptionPercent, poolUtilizationPercent));
Integer currentMaxSubscriptionPercentFromArray =
pool.getMaxThinPoolSubscriptionPercentageFromArray();
_logger.info(
String.format(
"Current maximum subscription percent of storage pool %s from array in vipr : %s ",
pool.getPoolName(), currentMaxSubscriptionPercentFromArray));
// Currently smis uses value of 0 as indication that MaxSubscriptionPercent is not available.
// Some array clients explicitly set this array limit to 0 to indicate that the value is 0%.
// The OPT was filed 448553 and it targeted for 4.6.2
// The plan is to use null to show that this property is not available, and 0 will show 0%.
// Until the fix for OPT is in, we will use 0 and null as indication for the property is not
// available.
// TODO!! Remove check for 0 when the OPT is in.
if (newMaxSubscriptionPercentFromArray != null
&& newMaxSubscriptionPercentFromArray != 0
&& newMaxSubscriptionPercentFromArray < poolSubscriptionPercent) {
// reset vipr limit and send alert
pool.setMaxThinPoolSubscriptionPercentage(newMaxSubscriptionPercentFromArray);
recordBourneStoragePoolEvent(
RecordableEventManager.EventType.StoragePoolUpdated,
pool,
"Discovered pool max subscription percent is below current pool subscription limit. The limit will be reset.",
RecordType.Alert,
dbClient,
eventManager);
// check if we need to reset max utilization percent in vipr
// pool max utilization percent is always less or equal to pool max subscription percent,
// so we do this check in this 'if' statement
if (newMaxSubscriptionPercentFromArray < poolUtilizationPercent) {
// reset vipr utilization limit and send alert
pool.setMaxPoolUtilizationPercentage(newMaxSubscriptionPercentFromArray);
recordBourneStoragePoolEvent(
RecordableEventManager.EventType.StoragePoolUpdated,
pool,
"Discovered pool max subscription percent is below current pool utilization limit. The limit will be reset.",
RecordType.Alert,
dbClient,
eventManager);
}
} else if (currentMaxSubscriptionPercentFromArray != null
&& currentMaxSubscriptionPercentFromArray == poolSubscriptionPercent
&& (newMaxSubscriptionPercentFromArray == null
|| currentMaxSubscriptionPercentFromArray < newMaxSubscriptionPercentFromArray)) {
// In this case array limit went up from previous value and vipr max pool subscription percent
// is using old array value ---
// send event that array value was increased so client may increase vipr limits if needed.
recordBourneStoragePoolEvent(
RecordableEventManager.EventType.StoragePoolUpdated,
pool,
"Discovered pool max subscription percent is above current pool subscription limit",
RecordType.Event,
dbClient,
eventManager);
}
// set array subscription percent in the pool
pool.setMaxThinPoolSubscriptionPercentageFromArray(newMaxSubscriptionPercentFromArray);
// TODO!! Remove the "if" below when fix for OPT 448553 is in.
// Use 0 as not available until then.
if (newMaxSubscriptionPercentFromArray != null && newMaxSubscriptionPercentFromArray == 0) {
pool.setMaxThinPoolSubscriptionPercentageFromArray(null);
}
}
