The availability of the service is defined as the percentage of time in which the contracted service is operating. That is to say that the customer's data service is accessible (responds to petitions) according to the established monitoring mechanism.

InterHost will calculate the availability on monthly bases, according to the following formula:

DIS = (Ttotal - Tstop)/ Total

Where DIS is the aforesaid availability expressed in times one; Ttotal is the total period of availability calculation (in a month); and Tstop is the time during which contracted service has not been functioning.

Every 5 minutes, the monitoring system tries to establish connection (petition) with the monitored server's ports. If a connection is not established will keep trying 5 more consecutive times at 5 seconds intervals. If after the fifth intent does not connect, an alarm is generated and is an incidence ticket is issued.

The Tstop calculation will accumulate all monthly periods of lack of contracted service performance, measured from the moment when the service stopped responding and ticket assignment until its close. The following will not be computed to these effects:

Time of lack of service due to attributable causes under compulsory events not related to InterHost and thus, beyond their control.

Times of maintenance that are planned and agreed to between the client and InterHost.

Time of stops attributable to a system's administration error under the customer's responsibility. InterHost will monitor the service to verify that there is connection between the distribution switches of their internal networks (server's ports) and Internet (gateway router interface). Service interruptions will be attributable to InterHost when failure in communications, in shared hardware/software, or in the physical infrastructure

Times of service's interruptions attributable to a bad manipulation from the client's side, of their agents or suppliers, of applications or contents that are not under InterHost's responsibility.

Times of interruptions due to changes performed by the client, out of the client's and InterHost's previously accorded maintenance's windows.

Data system's damages resolution time when this is property of the client, who has maintenance contracts with the manufacturers or third parties, even when the administration be delegated to InterHost.

Time of degraded service, given that during an incidence of this type, the system is found available.

InterHost guarantees 99.93% availability (in the terms previously defined). In the event that the availability would be lesser, the client will have the right to a discount (penalty) in its monthly quota.