Home / Troubleshooting
Incident-style coverage and release notes that feed these runbooks.
George Kurian says AI technology creators must build in security controls. We separate the CNBC interview from NetApp's Abu Dhabi announcement and map the claim to the storage-layer controls
· NetApp Black Box
NetApp KB guidance to manually upgrade Python in Active IQ Unified Manager (AIQUM) 9.18 on Windows to address CVE-2026-15308 and CVE-2026-11972 — a network-reachable denial-of-service flaw w
· NetApp Black Box
NetApp confirms that security anti-ransomware volume attack generate-report is not exhaustive: ONTAP permits at most 20 report entries for each file extension.
· NetApp Black Box
NetApp will exhibit at Ai Everything Abu Dhabi 2026 on October 6–7 with CEO George Kurian on the Summit Stage. We read the press release and explain the ONTAP-side implication: when AI moves
· NetApp Black Box
Zacks named NetApp a Strong Buy after its Q1 FY27 results. We reconcile the cited revenue, EPS, all-flash and public-cloud figures with NetApp's official release—and explain why this changes
· NetApp Black Box
CVE-2026-84782 — Successful exploitation of this vulnerability could lead to disclosure of sensitive information or Denial of Service (DoS).
· NetApp Security Advisory
The problems that actually show up in the field, with the diagnosis path and the commands that resolve them. Each guide: symptoms → checks → fix → prevention.
Common problems (FAQ) — start with the symptom you see, then jump to the full runbook.
Users say SMB logons, LDAP lookups, or name mapping suddenly hang or fail; EMS shows secd messages.
Applications can read existing data but cannot create new files; ONTAP reports wafl.vol.outOfInodes.
A data or cluster LIF is up, but clients or peer nodes cannot reliably reach it; EMS reports vifmgr.reach.err.
NFS mounts work, but users report slow opens, reads, writes, directory listings, or intermittent stalls.
The destination is hours behind, transfers take too long, or the protection dashboard shows growing SnapMirror lag.
A node is unhealthy or out of quorum, cluster commands are slow, or cluster LIFs/ports appear down.
ONTAP raises low-memory or allocation warnings, and management or data services may feel slow or unstable.
An aggregate/local tier is offline and its volumes are unavailable, often after power, disk, shelf, or HA disruption.
The LUN exists in ONTAP, but the host cannot discover it or has lost all usable paths.
"Volume is full": snapshots holding deleted data, overcommitment, inode pressure, and how to reclaim space safely.
Latency is up. Find the bottleneck: node CPU, disk utilization, protocol ops, and per-volume latency via sysstat and QoS statistics.
Troubleshoot LIFs down, no route to host, MTU and jumbo frames, ifgrps, iSCSI paths, and packet-tracer workflows.
Diagnose wrong or missing failover targets, non-home NAS LIFs, unsafe reverts, broadcast-domain mistakes, and client reachability without confusing SAN multipathing.
Growing lag, failed transfers, stuck relationships — and how to break, resync, and restore without losing data.
Recovery-first triage for local Snapshots, SnapMirror vaults, NDMP and configuration backups—with safe restore paths and escalation boundaries.
Permission denied, RPC errors, and hangs: export policies, LIFs, routing, sec flavors, and the NFSv4 domain.
Shares, share ACLs vs NTFS ACLs, AD/Kerberos integration, SMB 3.x features (multichannel, encryption, CA), and the access-denied / auth-failure paths — with real commands.
AWS SigV4 signature mismatches, 403 clock skew, bucket policies, TLS cert handshakes, incomplete multipart capacity drains, and SnapMirror S3 replication lag.
When a site dies: switchover and switchback workflows, mediator status checks, and what to verify after the dust settles.
metrocluster check errors, mediator quorum, blocked switchover/switchback, IP-vs-FC link checks — the full triage runbook with the commands that matter.
Why ONTAP stores NFSv4 ACLs as NTFS ACLs, the NIS → AD/Kerberos identity move, and a phased runbook with nfs4_setfacl and vserver security file-directory commands.
ANDU pre-validation errors, LIF migration vetoes, paused rolling upgrades, mixed-version cluster recovery, and image rollback.
Dirty shutdowns and DC power cycles: safe read-only triage, "UUID is not valid" scares, what NOT to run, and when to call support — before touching anything.
Retiring nodes, shelves, or whole clusters: config and license backup, clean removal, stuck audit volumes, disk sanitization, and used-shelf repurposing rules.
Moving off VMware: what you lose (VASA, SRM, SnapCenter, Veeam snapshots), NFS nconnect tuning, iSCSI multipath with ALUA, and the backup/DR rebuild without VMware glue.
No troubleshooting guides found matching ""
set -privilege advanced where noted. Run man <command> on the system for flag details — commands below target ONTAP 9.x.