All Resource Types have a default MonitorInterval and MonitorTimeout of 60 seconds.
Check what yours is set to, for example:
hatype -display DiskGroup
......
DiskGroup MonitorInterval 60
....
DiskGroup MonitorTimeout 60
....
Before adjusting these timeouts, consider the following recommendation in VCS Admin Guide:
For best results, Symantec recommends measuring the time it takes to bring a resource online, take it offline, and monitor before modifying the defaults. Issue an online or offline command to measure the time it takes for each action. To measure how long it takes to monitor a resource, fault the resource and issue a probe, or bring the resource online outside of VCS control and issue a probe.
To change timeouts, you can do it in the GUI by selecting the Resource Type, or from cmd:
hatype -modify <type> <attr> <value>
e.g.
hatype -modify DiskGroup MonitorInterval 120