Technical data

System Management Features
4.8 MONITOR Utility New Features
These enhancements are discussed in more detail in the MONITOR section of the
OpenVMS System Management Utilities Reference Manual and in the appendix
that discusses MONITOR record formats in that manual.
Also in the MONITOR utility, the display screens of MONITOR CLUSTER,
PROCESSES/TOPCPU, and SYSTEM now have new and higher scale values.
Refer to the OpenVMS System Management Utilities Reference Manual: M–Z for
more information.
4.9 OpenVMS Cluster Systems
The following OpenVMS Cluster features are discussed in this section:
• Clusterwide intrusion detection
• Fast Path for SCSI and Fibre Channel (Alpha)
• Floppy disks served in an OpenVMS Cluster system (Alpha)
• New Fibre Channel support (Alpha)
• Switched LAN as a cluster interconnect
• Warranted and migration support
4.9.1 Clusterwide Intrusion Detection
OpenVMS Version 7.3 includes clusterwide intrusion detection, which extends
protection against attacks of all types throughout the cluster. Intrusion data and
information from each system are integrated to protect the cluster as a whole.
Member systems running versions of OpenVMS prior to Version 7.3 and member
systems that disable this feature are protected individually and do not participate
in the clusterwide sharing of intrusion information.
You can modify the SECURITY_POLICY system parameter on the member
systems in your cluster to maintain either a local or a clusterwide intrusion
database of unauthorized attempts and the state of any intrusion events.
If bit 7 in SECURITY_POLICY is cleared, all cluster members are made aware if
a system is under attack or has any intrusion events recorded. Events recorded
on one system can cause another system in the cluster to take restrictive action.
(For example, the person attempting to log in is monitored more closely and
limited to a certain number of login retries within a limited period of time. Once
a person exceeds either the retry or time limitation, he or she cannot log in.) The
default for bit 7 in SECURITY_POLICY is clear.
For more information on the system services $DELETE_INTRUSION, $SCAN_
INTRUSION, and $SHOW_INTRUSION, refer to the OpenVMS System Services
Reference Manual.
For more information on the DCL commands DELETE/INTRUSION_RECORD
and SHOW INTRUSION, refer to the OpenVMS DCL Dictionary.
For more information on clusterwide intrusion detection, refer to the OpenVMS
Guide to System Security.
4–8 System Management Features