Storage monitoring tracks the performance, capacity and health of storage arrays, from pools and volumes down to drives and ports. XorMon, open source under GPL v3, monitors storage from NetApp, IBM, HPE, Lenovo, Dell EMC, Hitachi, Huawei and other vendors, and graphs IO, data throughput, latency and capacity.
Storage monitoring is the continuous tracking of the performance, capacity and health of storage systems, so that slow volumes, filling pools and failing components are found before applications are affected.
The Storage Overview is a single report for capacity and performance: capacity per pool, and IOPS, data throughput and latency for the last day, week and month, downloadable as PDF or scheduled from the reporter. The health status dashboard covers all supported technologies, and storage also has its own local health status. LPAR2RRD and STOR2RRD are legacy tools. XorMon is their full-stack successor, and all new development goes into XorMon. Per the Migration page, LPAR2RRD and STOR2RRD can run alongside XorMon on the same devices during the move, device definitions can be imported, and the XorMon license is covered, at no extra fee, by the existing support contract of enterprise edition customers of those tools for the same environment size. Performance history is not migrated.
Sources: Storage overview, updated 2026-11-06, Health status, updated 2026-05-04, About Xorux, and Migration, updated 2026-11-07.
XorMon supports storage from NetApp, IBM, HPE, Lenovo, Dell EMC, Hitachi and Huawei, and from other vendors such as Everpure (Pure Storage), Fujitsu, Infinidat, Cohesity and Synology.
The list below names 100 storage products and product families, from NetApp ONTAP Select and IBM FlashSystem to Hitachi VSP One Block and Huawei OceanStor Dorado, and each entry links to its vendor page. Fibre Channel switches from Broadcom (Brocade), Cisco and QLogic are covered on the SAN monitoring page. Storage Topology maps the physical interconnection of storage devices, servers and SAN switches at the FC port level.
Sources: SAN monitoring, updated 2026-11-02, and Storage Topology, updated 2026-10-07.
XorMon graphs storage performance per subsystem, such as pools, volumes, drives, ports and hosts, with metrics such as IO, data throughput and latency; the exact set depends on the storage model.
The feature matrix has one tab per vendor, with a column per storage family: for Dell EMC PowerMax and VMAX, it lists capacity, IO, data, latency and block size at pool level. The heatmap shows storage pools and volumes in a table colored by their response time (latency) during the last hour, refreshed every hour; each storage tier has its own thresholds. The data frequency table lists a sample rate and a data collection interval of 5 minutes for storage, with a data source that depends on the storage model.
Sources: Feature matrix, Heatmap and Data frequency, the last two updated 2026-05-04.
Capacity is reported per pool, Enhanced Predictions forecasts capacity usage, and XorMon alerting can use any metric the tool collects, for example volume latency.
Detailed capacity monitoring, with formatted, raw, replication, snapshot, virtual, deduplication, compressed and spare capacity per storage total, pool and tier, is available for IBM Storwize, SVC and FlashSystem, Lenovo V Series, Inspur AS5600, 5500, 2600 and 2200, Hitachi VSP and VSP-G, HPE XP7 and XP8, and HPE Primera and 3PAR. The Enhanced Predictions storage capacity table shows the days left until 90% and 100%. A storage alert group selects volumes by regex, a metric such as latency and a threshold. In XorMon, event alerting sends an alert when a device turns red in the global health status dashboard, and a clear alert when it turns green again.
Sources: Capacity monitoring, updated 2026-11-05, Enhanced Predictions and Health status, both updated 2026-05-04, Storage overview, updated 2026-11-06, and Alerting, updated 2026-10-13.
New to IOPS, throughput and latency? See the guide to storage performance metrics.
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