XorMon is an open-source alternative to Site24x7 for IBM i and AS400 monitoring. It covers each IBM i partition with a C-language agent and through the HMC, in a view of the whole IBM Power machine, runs on-premises and has a published support price. This page compares both on ten criteria.
XorMon is an alternative to Site24x7 for IBM i, AS400 and IBM Power monitoring. Site24x7 plans include servers and websites, and its On-Premise Poller helps to monitor the internal networks and systems located behind firewalls (site24x7.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 Site24x7 or XorMon changes its core positioning.
The table sets XorMon against Site24x7 on ten criteria. Each Site24x7 cell comes from an official Site24x7 page, checked on 2026-11-03.
| Criterion | XorMon | Site24x7 |
|---|---|---|
| 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 | Site24x7: Servers: agent for Windows, Linux, macOS, FreeBSD, AIX and Solaris, or agentless over SNMP or WMI. On-Premise Poller: internal networks and systems located behind firewalls, including network devices, VMware, Nutanix and backup infrastructure. Storage: NAS, RAIDs, tape libraries, and fabric switches from multiple vendors. Plans include servers and websites [5] [6] [7] [9] |
| 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 | Site24x7: Agent or agentless. The On-Premise Poller connects to servers and collects data using SNMP (v1, v2 and v3) or WMI; any server that supports SNMP or WMI protocol can add the agentless server. Agent for Windows, Linux, macOS, FreeBSD, AIX and Solaris [5] |
| 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 | Site24x7: Agent: data is pushed to data centers every five minutes. On-Premise Poller: data collected according to the set poll interval. Retention: raw data 30 days, hourly archived data 1 year, daily archived data 5 years, performance data 30 days; retention period varies depending on licensing plan [3] [6] [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 | Site24x7: Storage monitoring to ensure proper capacity planning for your storage environment [7] |
| 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 | Site24x7: Storage: configure and process trap messages instantly to get alerts if there are any device issues or events [7] |
| 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 | Site24x7: Checked 2026-11-03. Infrastructure Lite: 10 USD per month, or 9 USD per month paid annually (2 servers and 5 websites included). Infrastructure Professional: 49 USD per month, or 42 USD per month paid annually (5 servers and 20 websites included). Enterprise: starts at 625 USD per month, paid annually. 30-day free trial, no credit card required [9] |
| 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 | Site24x7: Packaged by plan, each with included servers and websites: Infrastructure Lite includes 2 servers and 5 websites, Infrastructure Professional includes 5 servers and 20 websites; Enterprise on price quote. Supported On-Premise Pollers: 1 (Lite), 10 (Professional), 50 (Enterprise) [9] |
| Deployment | XorMon: On-premises, with no SaaS dependency. Virtual appliance (Debian 13) for VMware, Nutanix, Proxmox and Microsoft Hyper-V, or Docker and Podman | Site24x7: The Site24x7 blog (April 11, 2025) describes it as a SaaS-based network monitoring solution. Agent: light weight and easy to install; its communication to the PDC is initiated using a one-way HTTPS connection, and data is pushed to data centers every five minutes. On-Premise Poller: helps to monitor the internal networks and systems located behind firewalls, deployable across multiple branch locations, sends data back to the Site24x7 data collector [3] [6] [10] |
| 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 | Site24x7: IBM i: Enterprise Applications monitoring extended to IBM i servers (release note of August 28, 2026), to track CPU and storage utilization, jobs, memory pools, subsystems, disks, queues, spool files and printers. IBM i / AS400 plugin: executed by the server monitoring agent, with storage, performance and system information metrics. AIX: agent for IBM AIX 6.1, 7.1 and 7.2; CPU, memory and disk utilization metrics [1] [2] [3] [4] |
| 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 | Site24x7: Storage: generate performance reports for in-depth analysis [7] |
Site24x7 column. Source: site24x7.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, XorMon appliance, Docker, About Xorux, Pricing.
XorMon fits when you need IBM i, AS400 and IBM Power monitoring in one open-source (GPL v3) platform that runs on-premises.
Sources: XorMon documentation and pricing pages listed under the table above.
Site24x7 fits when you want server, website, network and storage monitoring in plans that include servers and websites, with an On-Premise Poller for systems located behind firewalls.
Sources: site24x7.com pages [5], [6], [7], [9] and [10] above, checked 2026-11-03.
Site24x7 is an all-in-one monitoring service that helps in monitoring the uptime and performance of websites, servers and online applications (site24x7.com sign-up page, checked 2026-11-03). Servers are monitored by a light-weight agent for Windows, Linux, macOS, FreeBSD, AIX and Solaris, which pushes data to data centers every five minutes, or agentless over SNMP or WMI through an On-Premise Poller (site24x7.com, checked 2026-11-03).
Yes, for IBM i, AS400 and IBM Power. XorMon runs a C-language agent on each IBM i partition, covers IBM i partitions through the HMC REST API, and reads IBM Power servers, CPU pools, AIX, VIOS and Linux on Power LPARs, on-premises and under GPL v3. XorMon also covers storage, SAN, VMware, Nutanix, databases and LAN. If you mainly need website monitoring alongside servers, network devices and storage, Site24x7 describes that scope (site24x7.com, checked 2026-11-03).
Yes. Site24x7 extended its Enterprise Applications monitoring to IBM i servers in a release note of August 28, 2026. Site24x7 also documents an IBM i / AS400 plugin executed by its server monitoring agent (site24x7.com, checked 2026-11-03). XorMon runs a C-language agent on each IBM i partition that collects data every minute, and the HMC REST API adds IBM i partitions to the view of the whole IBM Power machine.
Yes. XorMon lists IBM i as IBM i (AS400). A C-language agent, installed from a save file on IBM i V6R1 or later, collects CPU, jobs, memory pools, ASP storage, disk and LAN data every minute; most graphs map to native commands such as WRKACTJOB, WRKSYSSTS, WRKDSKSTS and DSPASPBRM. IBM i partitions on IBM Power are also covered through the HMC REST API.
XorMon is open source under the GNU GPL v3 and free in production, with per-device limits; Enterprise support removes them and typically costs 7,000 to 11,000 USD per year for a medium-sized environment. Site24x7 lists three plans: Infrastructure Lite, 10 USD per month, or 9 USD per month paid annually; Infrastructure Professional, 49 USD per month, or 42 USD per month paid annually; Enterprise, starts at 625 USD per month, paid annually (site24x7.com, checked 2026-11-03).
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