CA-NTOS-MIB

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsCA-NTOS-MIB

Category: Device Management

Description: Monitors Computer Associates (CA) network transport operating system performance and connectivity.

Start monitoring vendor-neutral, standards-based MIB, any SNMPv3-capable network device (SNMP engine identity/boot/clock status) with a free 30-day trial of IPNetwork Monitor. Import MIBs, browse SNMP OIDs, create custom SNMP monitors, configure alerts, and monitor any SNMP-enabled network device from a single console.

What Is CA-NTOS-MIB?

CA-NTOS-MIB is a Computer Associates (CA) proprietary MIB for its NT System Agent, a Windows NT host-monitoring agent that polls and thresholds a broad set of OS-level resources. Configuration groups (ntFileSystemConfig, ntFileConfig, ntProcessConfig, ntServiceConfig, ntPrinterConfig, ntMemoryConfig, ntProcessorConfig, ntRegistryConfig, ntEventLogConfig) each define a poll interval plus default warning/critical thresholds, and expose add/remove objects (e.g. ntFSAdd/ntFSRemove, ntProcAdd/ntProcRemove, ntServiceAdd/ntServiceRemove) for dynamically managing what's being watched. The corresponding status tables report live state: ntFilesystemStTable tracks per-drive capacity, utilization, and free space against configurable percentage/KB thresholds; ntFileStTable tracks individual monitored files for size, size-change rate, and timestamp changes; ntProcessStTable tracks whether specific processes exist and their instance/thread counts; and an overall ntStatus/ntStatusSummary rolls all of these (plus services, printers, memory, CPU, registry, and event logs) up into a single worst-case OK/warning/critical status. This gives an NT/Windows-focused monitoring system a single MIB to watch disk space, process/service health, memory and CPU pressure, and registry or event-log changes without needing host agents beyond CA's own. It depends only on RFC1155-SMI/RFC-1212/RFC1213-MIB conventions typical of mid-1990s SNMP agents, and is deployed on Windows NT servers running the CA AgentWorks NT System Agent; teams still operating this legacy stack searching for the CA-NTOS-MIB download would use it to poll host health status via SNMP.

IPNetwork Monitor allows you to monitor SNMP objects defined in CA-NTOS-MIB. Use the built-in SNMP Monitoring Browser to explore available variables, view their current values and descriptions, and select the objects you want to monitor. You can then create SNMP monitors, configure thresholds, and receive alerts when monitored values change.

Supported Devices

  • Windows NT servers running the CA (Computer Associates) AgentWorks NT System Agent

Monitoring Examples

An operator polls ntStatus for the overall worst-case health of a monitored NT server and, if it reads warning or critical, drills into ntFilesystemStTable to check ntStatusFSUtilization against ntStatusFSPcntCritical for each monitored drive letter; a drive showing utilization above its critical threshold combined with ntStatus reporting critical would indicate that server is at risk of running out of disk space.

What Can Be Monitored

  • per-filesystem capacity, utilization, and free-space thresholds
  • monitored file size, size-change, and timestamp status
  • monitored process existence and instance/thread counts
  • monitored service and printer status
  • memory, CPU, and registry threshold status
  • overall aggregated system health status (ntStatus)
Imported Objects

From RFC-1215

TRAP-TYPE

From RFC1155-SMI

Counter
Gauge
OBJECT-TYPE
enterprises

From RFC1213-MIB

DisplayString
OIDs

RFC description

CA Technologies vendor MIB for NTOS (Network Topology Operating System) management.

Start monitoring Windows NT servers running CA (Computer Associates) AgentWorks NT System Agent with a free 30-day trial of IPNetwork Monitor. Import MIBs, browse SNMP OIDs, create custom SNMP monitors, configure alerts, and monitor any SNMP-enabled network device from a single console.

Download CA-NTOS-MIB