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SAN KBs

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SAN KBs

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SAN Configuration and Admin
Guides for configuring and administering a SAN in a NetApp environment. 
FCP Lif down
Guide to troubleshooting FCP lifs that are Admin up or operationally down. 
Data to collect for a SAN RCA
This KB details the information that might be needed for NetApp to perform an RCA.
Frequent WQE 0x16 errors
KB covering how to resolve 0x16 errors seen in EMS logs . 
Freqent fcp.io errors with status 0x1d 
KB covering how to resolve frequent 0x1d errors in EMS. 
Brocade: SFP or cable Diagnoses
How to determine whether the SFP or Cable is faulty on a Brocade switch? 
Other Resources
  • What TCP ports are required for SnapMirror Active Sync (SM-as) ?Thu, 19 Mar 2026
  • ONTAP SAN SM-as remote path disappear during Ontap upgradeThu, 19 Mar 2026
  • ONTAP SAN OLVM hypervisor boot LUN not discoveredThu, 19 Mar 2026
  • ONTAP SAN FC ports are not coming up during installationThu, 19 Mar 2026
  • Which type of iSCSI CHAP authentication is recommended?Tue, 17 Mar 2026
  • ONTAP SAN data corruption after power and environmental issueTue, 10 Mar 2026
  • SMas destination paths are dead after controller failureFri, 06 Mar 2026
  • How to check which path is SCSI-3 reservation holder or registrant?Thu, 05 Mar 2026
  • "Activation Key entered has been canceled and is no longer valid." error on BrocadeWed, 04 Mar 2026
  • Alias name for NetApp LUN is missing in multipath -ll output on Linux hostMon, 02 Mar 2026
  • Can a Initiator be part of multiple Igroups?Mon, 02 Mar 2026
  • iSCSI Connections Randomly Dropped in Multi-Network Linux SetupFri, 27 Feb 2026
  • iSCSI Port administratively down after ESXi reboot in Direct-Attached SAN configFri, 27 Feb 2026
  • LUN path visibility issue in Windows Server 2022 after performing takeover or givebackFri, 27 Feb 2026
  • Is the multipath.conf file expected to be empty after installing ONTAP SAN Host Utilities?Fri, 27 Feb 2026
  • Is Write IO allowed from reservation holder only or all registrants under SCSI-3 WERO reservation type?Wed, 25 Feb 2026
  • SAN paths missing to destination cluster in SMas relationship after power outageTue, 24 Feb 2026
  • LUN Offline Due to Full Volume on Windows HostTue, 24 Feb 2026
  • Windows HUK installation displays message "No update to settings"Mon, 23 Feb 2026
  • High Latency and SCSI Aborts while accessing SAN LUNs on ESXiFri, 20 Feb 2026
  • What TCP ports are required for SnapMirror Active Sync (SM-as) ?Thu, 19 Mar 2026
  • ONTAP SAN SM-as remote path disappear during Ontap upgradeThu, 19 Mar 2026
  • ONTAP SAN OLVM hypervisor boot LUN not discoveredThu, 19 Mar 2026
  • ONTAP SAN Guest does not boot if thin provisionedThu, 19 Mar 2026
  • ONTAP SAN FC ports are not coming up during installationThu, 19 Mar 2026
  • Why does VMware ESXi or Microsoft Hyper-V report more space used than ONTAP LUN?Wed, 18 Mar 2026
  • How to setup Broadcom VMware ESXi iSCSI MPIO with ONTAP SAN ASATue, 17 Mar 2026
  • Which type of iSCSI CHAP authentication is recommended?Tue, 17 Mar 2026
  • ONTAP SAN SM-as after storage vmotion between protected LUN VM boot failureFri, 13 Mar 2026
  • ONTAP SAN data corruption after power and environmental issueTue, 10 Mar 2026
  • ONTAP Upgrade Paused Due to an orphaned SAN initiatorMon, 09 Mar 2026
  • Unable to create subsystems with NVMe/TCPMon, 09 Mar 2026
  • Can a Initiator be part of multiple Igroups?Mon, 09 Mar 2026
  • SMas destination paths are dead after controller failureFri, 06 Mar 2026
  • How to check which path is SCSI-3 reservation holder or registrant?Fri, 06 Mar 2026
  • "Activation Key entered has been canceled and is no longer valid." error on BrocadeWed, 04 Mar 2026
  • Alias name for NetApp LUN is missing in multipath -ll output on Linux hostMon, 02 Mar 2026
  • vCenter reported a vim fault InvalidLogin errorMon, 02 Mar 2026
  • Newly installed FC adapters show as hard OFFLINEMon, 02 Mar 2026
  • iSCSI Connections Randomly Dropped in Multi-Network Linux SetupFri, 27 Feb 2026