ManageEngine describes OpManager as network monitoring software for routers, switches, firewalls, servers and VMs. XorMon is an open-source, on-premises alternative for teams whose priority is IBM Power, virtualization, storage and SAN depth: it reads the HMC, storage arrays and SAN switches, and has a published support price. This page compares both on ten criteria.
XorMon is an alternative to ManageEngine OpManager for IBM Power, storage, SAN and server infrastructure monitoring. ManageEngine describes OpManager for routers, switches, firewalls, load balancers, wireless LAN controllers, servers, VMs, printers and storage devices, and any IP-based device (manageengine.com, checked 2026-11-03). The sections below show where each tool fits.
Last updated: November 3, 2026. We review this comparison at least once a year, and whenever ManageEngine or XorMon changes its core positioning.
The table sets XorMon against ManageEngine OpManager on ten criteria. Each OpManager cell comes from an official ManageEngine page, checked on 2026-11-03.
| Criterion | XorMon | ManageEngine OpManager |
|---|---|---|
| Supported technologies | XorMon: IBM Power Systems (AIX, IBM i, VIOS, Linux on Power, HMC), VMware, Nutanix, Kubernetes, SAN, storage, LAN, databases, backup, tape, cloud and mainframe. Storage from NetApp, IBM, HPE, Lenovo, Dell EMC, Hitachi, Huawei and other vendors; SAN switches from Broadcom (Brocade), Cisco and QLogic | ManageEngine OpManager: Routers, switches, firewalls, load balancers, wireless LAN controllers, servers, VMs, printers and storage devices, and any IP-based device. Virtualization: Hyper-V, VMware, Citrix, Xen and Nutanix HCI servers. Storage: Fibre Channel switches, storage arrays and tape libraries, with 10,000+ device templates across 30+ storage vendors [1] [4] |
| Agentless collection | XorMon: Agentless architecture, with an optional agent for deeper data. SAN switches through SNMP, the Brocade REST API or SANnav v2; storage through a source that depends on the storage model; IBM Power through the HMC REST API. OS agents in AIX, VIOS and Linux on Power LPARs add metrics | ManageEngine OpManager: Agentless monitoring over ICMP, SNMP, WMI and CLI (Telnet/SSH); agents are also available, and agent-based monitoring is listed in the Professional edition. Storage: SNMP, SMI-S and CLI protocols [1] [3] [4] |
| Granularity (intervals, retention) | XorMon: Storage and SAN: sampled and collected every 5 minutes. IBM Power (HMC): sampled every minute, collected every 20 minutes. Storage and SAN retention: 5-minute averages for 3 months, hourly for 6 months, 6-hour for 1 year, daily for 3 years; retention can be adjusted without data loss | ManageEngine OpManager: By default, the polling interval for an interface is 15 minutes. By default, detailed data is maintained for 7 days, hourly data for 30 days and daily data for 365 days [7] [8] |
| Capacity planning | XorMon: Capacity per pool, captured once an hour. Enhanced Predictions forecasts capacity usage and shows the days left until 90% and 100%; prediction alerting warns when a metric is predicted to reach its threshold within a set number of days | ManageEngine OpManager: Capacity utilization monitors and storage growth trend graphs for Fibre Channel switches, storage arrays and tape libraries; pool capacity growth; Zia AI forecasts performance trends and predicts storage levels in advance [1] [4] |
| Alerts | XorMon: Threshold alerts on any collected metric, event alerts from the health status, SAN port events, prediction, anomaly and ping alerting. Sent by email, SNMP trap, ServiceNow, Zabbix, Discord or Telegram, or to any tool with a REST API or webhook through the Integration builder | ManageEngine OpManager: Alarms and notifications (Standard edition); notifications via email and SMS; real-time alerts from multiple sites (Enterprise edition) [1] |
| Indicative price | XorMon: Free to download and run in production. Enterprise support contract: typically 7,000 to 11,000 USD per year for a medium-sized environment, depending on the number of monitored devices. A three-month trial license is included with the installation package | ManageEngine OpManager: Listed starting price ("Starts at"): Standard $245 for 25 devices, Professional $345 for 25 devices, Enterprise $4595 for 250 devices, checked 2026-11-03. 30-day trial with all functionalities and an unlimited number of devices [1] [3] |
| License | XorMon: Open source, GNU GPL v3. Free edition with per-device limits; the Enterprise edition, unlocked by a support contract, removes all device and feature limits. One contract covers XorMon, LPAR2RRD, STOR2RRD and XorMon Original | ManageEngine OpManager: Device-based license that allows monitoring any number of interfaces, disk volumes and sensors; annual subscription or perpetual license; Enterprise edition for more than 1,000 devices. Each virtual instance counts as one device; NCM, IPAM and APM modules have separate licenses [2] [3] |
| Deployment | XorMon: On-premises, with no SaaS dependency. Virtual appliance (Debian 13) for VMware, Nutanix, Proxmox and Microsoft Hyper-V, or Docker and Podman | ManageEngine OpManager: Primarily on-premises, hosted and controlled on your own infrastructure; hybrid and cloud-based monitoring options are also offered [3] |
| IBM Power and IBM i | XorMon: HMC REST API for IBM Power servers, CPU pools, shared processor pools and AIX, IBM i, VIOS and Linux on Power LPARs, plus OS agents in AIX, VIOS and Linux on Power. IBM i: C-language agent for IBM i V6R1 or later, collecting CPU, jobs, memory pools, ASP storage, disk and LAN data every minute | ManageEngine OpManager: AIX: OpManager agent for IBM AIX 6.1, 7.1 and 7.2; IBM AIX device template (Server category) for health and performance; IBM-AIX among the supported vendors [3] [5] [6] |
| Reporting | XorMon: Reporter: PDF reports from any collected data, created manually or on a daily, weekly, monthly or yearly recurrence, sent by email or saved on the server; one report in the Free Edition. Historical reporting for IBM Power, VMware, storage and SAN | ManageEngine OpManager: Intuitive and consolidated reports, listed in the Professional edition [1] |
ManageEngine OpManager column. Source: manageengine.com, checked 2026-11-03:
XorMon column: Data frequency, Data retention, Storage monitoring, SAN monitoring, IBM Power monitoring, IBM i monitoring, Enhanced Predictions, Alerting, Alerting integrations, Reporter, Historical reporting, LAN monitoring, Flow monitoring, LAN Topology, XorMon appliance, Docker, Pricing.
XorMon fits when you need IBM Power, IBM i, storage and SAN monitoring in one open-source (GPL v3) platform that runs on-premises.
Sources: XorMon documentation and pricing pages listed under the table above.
ManageEngine OpManager fits when you want to monitor network and IP-based devices next to servers, VMs and storage, bought per device as an annual subscription or a perpetual license.
Sources: manageengine.com pages [1], [2] and [3] above, checked 2026-11-03.
ManageEngine OpManager is a monitoring tool that ManageEngine describes for routers, switches, firewalls, load balancers, wireless LAN controllers, servers, VMs, printers and storage devices, and any IP-based device. It is primarily an on-premises solution, with hybrid and cloud-based monitoring options, and follows a device-based license model, sold as an annual subscription or a perpetual license (manageengine.com, checked 2026-11-03).
Yes, for IBM Power, storage and SAN. XorMon reads IBM Power data from the HMC REST API, monitors storage from NetApp, IBM, HPE, Dell EMC, Hitachi and other vendors, and Brocade, Cisco and QLogic SAN switches, on-premises and under GPL v3. XorMon also covers VMware, Nutanix, Linux, databases, LAN switches, and Cisco and FortiGate firewalls. If you mainly need monitoring of any IP-based device, including routers, wireless LAN controllers and printers, ManageEngine OpManager lists that scope (manageengine.com, checked 2026-11-03).
Yes. ManageEngine documents an OpManager agent for IBM AIX 6.1, 7.1 and 7.2 and an IBM AIX device template, and lists IBM-AIX among the vendors OpManager supports (manageengine.com, checked 2026-11-03). XorMon collects AIX data at two levels: OS agents in AIX and VIOS LPARs, and the HMC REST API, which adds LPAR, VIOS, CPU pool and server-level views of the whole IBM Power machine.
Yes. XorMon monitors LAN switches over SNMP, from Cisco, HPE Aruba, Huawei and devices with Cisco-compatible MIBs, Cisco ASA and Firepower firewalls, and Fortinet FortiGate with its managed FortiSwitch devices through the FortiGate REST API. Its flow collector accepts NetFlow v5 and v9, IPFIX and sFlow v5, and LAN Topology maps switch interconnections with LLDP and CDP. SAN switches from Brocade, Cisco and QLogic are also covered.
XorMon is open source under the GNU GPL v3 and free to run in production, with per-device limits in the free edition; an Enterprise support contract removes them and typically costs 7,000 to 11,000 USD per year for a medium-sized environment. ManageEngine licenses OpManager per device. Listed starting price: Standard $245 for 25 devices, Professional $345 for 25 devices, Enterprise $4595 for 250 devices; a 30-day trial is offered (manageengine.com, checked 2026-11-03).
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