Are NetApp ONTAP Systems Impacted by CVE-2026-55203 and CVE-2026-55204?
NetApp's KB addresses whether the HAProxy-related CVE-2026-55203 and CVE-2026-55204 affect ONTAP 9, and what admins should check.
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ONTAP Performance & Capacity — Monitoring, QoS, RAID, Efficiency & Planning
Latest: Performance & capacity — latest
CONTAP-168265 asks for graceful GCP takeover during host maintenance
NetApp KB item CONTAP-168265 records an RFE for Cloud Volumes ONTAP in Google Cloud to handle Freeze and migrateOnHostMaintenance events with graceful takeover, comparable to Azure behavior.
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VMware ESXi hosts hit persistent APD during ONTAP controller maintenance despite healthy FC
NetApp has published a validated Knowledge Base article describing ESXi hosts losing all Fibre Channel paths and LUNs entering persistent APD during controller maintenance even while ONTAP k
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3 things to know from NetApp Insight 2026
NetApp Insight 2026 delivered three headline announcements — the AI Data Engine, the Novus zettabyte-scale file system, and Keystone Sovereignty. Here is what each changes for ONTAP customer
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Accelerate AI and cloud data management at Microsoft Ignite: the ONTAP questions
NetApp’s Ignite 2026 page promises AI and cloud data-management conversations, not a product launch. Here is what ONTAP and cloud-storage teams should validate.
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Commvault cannot back up NFS exports on Cloud Volumes ONTAP — the diagnostic that matters
NetApp's KB documents a Commvault failure where shares are visible but NFS backups error and no NFS connection ever reaches ONTAP. Here is what that packet-trace silence tells you.
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ONTAP performance work starts with knowing what to measure: latency isolation between protocol, network, and disk layers, sysstat and perfstat workflows, and QoS when noisy neighbors appear. Capacity is the same discipline — raw vs usable vs effective, RAID geometry, efficiency gains, and the 80% rule. These guides and calculators turn both into numbers you can act on.
Performance monitoring & perfstat
statistics show/start/stop, sysstat columns, perfstat, latency isolation workflow.
Capacity planning & forecasting
Raw vs usable vs effective, growth trending, acquisition forecasts.
Aggregate capacity math
Why usable < raw: RAID, WAFL overhead, snapshot reserves, worked examples.
QoS deep dive
Adaptive QoS, storage QoS policies, workload management, monitoring.
Storage efficiency
Dedupe, compression, compaction, FlexGroups: real savings math.
RAID & disk management
RAID-DP/TEC, RAID groups, spare pools, reconstruction, SyncMirror.
FlexGroup architecture
Distributed namespaces, scaling, inode space and placement.
FlexVol deep dive
Volumes, space guarantees, fractional reserve, autosize.
Network ports & throughput
Port roles, NIC sizing, jumbo frames, and throughput planning.
Storage sizing calculator
Interactive sizing from workloads, efficiency, and RAID.
Throughput calculator
Bandwidth and IOPS planning math.