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

Cloned LUN Mount Failure Due to Duplicate SR UUID in Citrix EnvironmentTue, 17 Jun 2025
I/O disconnects when storage moves it's ports through NPIVThu, 12 Jun 2025
ISCSI LIF Retransmissions Seen from the Host sideWed, 11 Jun 2025
VMWare Luns Locked and Unresponsive due to Reservation ConflictTue, 10 Jun 2025
What is the best MPIO policy to avoid iSCSI session interruptions during ONTAP node takeover or upgradeFri, 06 Jun 2025
Does node Takeover/Giveback cause path degraded alerts on host end?Thu, 05 Jun 2025
Is Round Robin with subset the proper policy in Hyper-V with NetApp FC SAN env?Mon, 02 Jun 2025
Brocade SANnav SNMP with INFORMS does not show eventsFri, 30 May 2025
Enabling iSCSI multipathing on SAN hosts causes iSCSI data performance issuesWed, 28 May 2025
UCS Cannot see new iSCSI Boot LUNWed, 28 May 2025
ONTAP SAN SM-as after storage vmotion between protected LUN VM corruptionWed, 28 May 2025
Disk in NetApp's iSCSI area becomes read-only with Windows Event ID 140 loggedTue, 27 May 2025
Database slowness issue reported on host end due to faulty cableThu, 22 May 2025
Windows Server iSCSI initiator is not connecting to a target iSCSI LIFWed, 21 May 2025
SQL server hosted on FC LUN is experiencing latency issuesWed, 21 May 2025
Unable to remove the source array from Ontap due to zoning still present on switch endWed, 21 May 2025
FC path is less than expectedThu, 15 May 2025
Unable to add a new LUN to ESXi hostMon, 12 May 2025
Netlogon log does not contain the vserver nameMon, 12 May 2025
ISCSI lif not reachable due to no ARP response from end deviceThu, 08 May 2025

VMWare Luns Locked and Unresponsive due to Reservation ConflictWed, 18 Jun 2025
ONTAP SAN Guest does not boot if thin provisionedWed, 18 Jun 2025
ONTAP SAN SM-as after storage vmotion between protected LUN VM corruptionWed, 18 Jun 2025
Cloned LUN Mount Failure Due to Duplicate SR UUID in Citrix EnvironmentTue, 17 Jun 2025
How to restore deleted files from a snapshot when using a Windows LUN in ONTAPMon, 16 Jun 2025
EMS message 'fcp.io.status: state=5' frequently occurringMon, 16 Jun 2025
Windows Server iSCSI initiator is not connecting to a target iSCSI LIFMon, 16 Jun 2025
UCS Cannot see new iSCSI Boot LUNMon, 16 Jun 2025
One LUN displaying as multiple drives in Windows disk managementMon, 16 Jun 2025
FCP/FCoE LIF reports operationally down due to Faulty switch SFPMon, 16 Jun 2025
What is the best MPIO policy to avoid iSCSI session interruptions during ONTAP node takeover or upgradeMon, 16 Jun 2025
Does node Takeover/Giveback cause path degraded alerts on host end?Sun, 15 Jun 2025
Unable to remove the source array from Ontap due to zoning still present on switch endSun, 15 Jun 2025
System Manager displays partially connected status when initiators are logged inFri, 13 Jun 2025
ESXi datastores are unavailable after network switch migrationThu, 12 Jun 2025
SQL server hosted on FC LUN is experiencing latency issuesThu, 12 Jun 2025
Enabling iSCSI multipathing on SAN hosts causes iSCSI data performance issuesThu, 12 Jun 2025
I/O disconnects when storage moves it's ports through NPIVThu, 12 Jun 2025
ISCSI LIF Retransmissions Seen from the Host sideWed, 11 Jun 2025
Host Initiators not logged in to NetApp cluster using some of the pathsWed, 11 Jun 2025