in aws-rds-dbinstance/src/main/java/software/amazon/rds/dbinstance/Translator.java [581:593]
private static boolean canUpdateAllocatedStorage(final String fromAllocatedStorage, final String toAllocatedStorage) {
if (fromAllocatedStorage == null || toAllocatedStorage == null) {
return true;
}
final int from, to;
try {
from = Integer.parseInt(fromAllocatedStorage);
to = Integer.parseInt(toAllocatedStorage);
} catch (NumberFormatException e) {
return true;
}
return to >= from;
}