o If you create or edit a role on a vCenter Server system that is part of a connected group in Linked Mode, the changes you make are propagated
to all other vCenter Server systems in the group. Assignments of roles to specific users and objects are not shared across linked vCenter Server
systems.
o VCP-410 exam Permissions grant users the right to perform the activities specified by the role on the object to which the role is assigned
o By default, all users who are members of the Windows Administrators group on the vCenter Server system have the same access rights as any
user assigned to the Administrator role on all objects.
o Propagation is set per permission, not universally applied. Permissions defined for a child object always override those propagated from
parent objects.
o You cannot set permissions directly on a vNetwork Distributed Switches. To set permissions for a vNetwork Distributed Switch and its
associated dvPort Groups, set permissions on a parent object, such a folder or datacenter, and select the option to propagate these
permissions to child objects.
o If no permission is defined for the user on that object, the user is assigned the union of privileges assigned to the groups for that object.
o If a permission is defined for the user on that object, the user's permission takes precedence over all group permissions
o Reports are updated every 30 minutes.
o Map views are updated every 30 minutes
o Alarms are notifications that occur in response to selected events, conditions, and states that occur with objects in the inventory.
o Alarms are composed of a trigger and an action.
o Alarms have two types of triggers: condition/state triggers, and event triggers.
o Condition or State Triggers Monitor the current condition or state of VMs, hosts, and datastores.
o Event Triggers Monitors events that occur in response to operations occuring with any managed object in the inventory, the vCenter Server
system, or the license server.
o Condition and state triggers use one of the following operator sets to monitor an object:
o Is equal to and Is not equal to
o Is above and Is below
o Event triggers use arguments, operators, and values to monitor operations that occur in the vServer System.
o Alarm actions are operations that occur in response to triggered alarms.
o The default VMware alarms do not have actions associated with them. You must manually associate actions with the default alarms.
o You can disable an alarm action from occurring without disabling the alarm itself.
o You disable alarm actions for a selected inventory object.
o When you disable the alarm actions for an object, they continue to occur on child objects.
o When you disable alarm actions, all actions on all alarms for the object are disabled. You cannot disable a subset of alarm actions.
o The SNMP agent included with vCenter Server can be used to send traps when alarms VCP-410 exam questions are triggered on a vCenter Server.
o Alarm reporting can further restrict when a condition or state alarm trigger occurs by adding a tolerance range and a trigger frequency to the
trigger configuration.
o The tolerance range specifies a percentage above or below the configured threshold point, after which the alarm triggers or clears.
o Condition threshold + Tolerance Range = Trigger alarm
o The trigger frequency is the time period during which a triggered alarm action is not reported again. By default, the trigger frequency for the
default VMware alarms is set to 5 minutes.
o Statistical data consists of CPU, memory, disk, network, system, and VM operations metrics.
o Collection intervals determine the time period during which statistics are aggregated and rolled up, and the length of time the statistics are
archived in the vCenter database. By default, vCenter Server has four collection intervals: Day, Week, Month, and Year.
o Real-time statistics are not stored in the database. They are stored in a flat file on ESX/ESXi hosts and in memory on the vCenter Server
systems
o Real-time statistics are collected directly on an ESX/ESXi host every 20 seconds (60 seconds for ESX Server 2.x hosts).
o On ESX hosts, the statistics are kept for one hour, after which 180 data points (15 -20 second samples) will have been collected.
o On ESXi hosts, the statistics are kept for 30 minutes, after which 90 data points will have been collected.
o Collection Intervals:
Collected frequency Retention
5 Minutes VCP-410 study guide
1 Day
30 Minutes 1 Week
2 Hours 1 Month
1 Day 1 Year
o You can change the frequency at which statistic queries occur, the length of time statistical data is stored in the vCenter Server database, and
the amount of statistical data collected.
o Not all attributes are configurable for each collection interval.
o You can assign a collection level of 1- 4 to each collection interval, with level 4 having the largest number of counters.
o By default, all collection intervals use collection level 1.
o Generally, you need to use only collection levels 1 and 2 for performance monitoring and analysis.
