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

ONTAP SAN new ASA with Slow Data Transfer Between LUNs on Windows VM via ESXiMon, 13 Apr 2026
Slowness in accessing/creating files in CIFS share while using ZscalarWed, 08 Apr 2026
Can we force the Fibre Channel initiator port speed?Tue, 07 Apr 2026
LUNs Online and Mapped in ONTAP but “Communication Lost” on Some ESXi HostsTue, 07 Apr 2026
scsitarget.fct.port.thresh Alert Triggered on FC Port Due to Exceeded Configured ThresholdFri, 03 Apr 2026
Latency and scsitarget.fct.linkError Errors seen on multiple FC portsFri, 03 Apr 2026
Can iSCSI initiator-address-ranges allow access if the initiator is not permitted in the igroup?Fri, 03 Apr 2026
Multipath Output Shows Different WWIDs for Same-Sized LUNsWed, 01 Apr 2026
Is it possible to rename an active zoning configuration when the system is online?Tue, 31 Mar 2026
Initiator's Status shows “logged in” After LUN UnmappingTue, 31 Mar 2026
VMware hosts lose access to storage due to duplicate IPMon, 30 Mar 2026
FC LIF created in GUI can't be offline and deletedFri, 27 Mar 2026
FLI failed due to a special character in the lun serial numberThu, 26 Mar 2026
Lun shows up multiple times on a hostWed, 25 Mar 2026
Unable to add disk to Oracle ASMMon, 23 Mar 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 FC ports are not coming up during installationThu, 19 Mar 2026
Which type of iSCSI CHAP authentication is recommended?Tue, 17 Mar 2026

How to collect data for an RCA of a SAN event that occurred in the pastTue, 14 Apr 2026
ONTAP SAN SM-as remote path disappear during Ontap upgradeMon, 13 Apr 2026
ONTAP SAN new ASA with Slow Data Transfer Between LUNs on Windows VM via ESXiMon, 13 Apr 2026
Slowness in accessing/creating files in CIFS share while using ZscalarThu, 09 Apr 2026
Latency and scsitarget.fct.linkError Errors seen on multiple FC portsThu, 09 Apr 2026
Can we force the Fibre Channel initiator port speed?Tue, 07 Apr 2026
What TCP ports are required for SnapMirror Active Sync (SM-as) ?Tue, 07 Apr 2026
LUNs Online and Mapped in ONTAP but “Communication Lost” on Some ESXi HostsTue, 07 Apr 2026
scsitarget.fct.port.thresh Alert Triggered on FC Port Due to Exceeded Configured ThresholdFri, 03 Apr 2026
Can iSCSI initiator-address-ranges allow access if the initiator is not permitted in the igroup?Fri, 03 Apr 2026
Cannot connect more NVMe/TCP hostsThu, 02 Apr 2026
Is Round Robin with subset the proper policy in Hyper-V with NetApp FC SAN env?Thu, 02 Apr 2026
LUN path visibility issue in Windows Server 2022 after performing takeover or givebackThu, 02 Apr 2026
After ONTAP upgrade SAN hosts lost path to LUNWed, 01 Apr 2026
Multipath Output Shows Different WWIDs for Same-Sized LUNsWed, 01 Apr 2026
Is it possible to rename an active zoning configuration when the system is online?Tue, 31 Mar 2026
Initiator's Status shows “logged in” After LUN UnmappingTue, 31 Mar 2026
Unable to add disk to Oracle ASMMon, 30 Mar 2026
VMware hosts lose access to storage due to duplicate IPMon, 30 Mar 2026
LUN unexpectedly out of spaceMon, 30 Mar 2026