Skip to main content
NetApp Knowledge Base

SAN KBs

SAN KBs

Featured
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
  • FC paths down to one node after MetroCluster switchbackFri, 17 Oct 2025
  • FC paths down after ONTAP upgradeFri, 17 Oct 2025
  • ONTAP SAN SCSI errors in new ESXi setup with iSCSI connectionFri, 17 Oct 2025
  • LUN inaccessibility issue post activity being performed on node due to misconfiguration of MPIO on host endWed, 15 Oct 2025
  • How to estimate overwrite space for LUN volumes with fractional_reserve set to 0 in ONTAPWed, 15 Oct 2025
  • Can you mount a cifs/nfs share via block storage?Mon, 13 Oct 2025
  • ONTAP SAN ESXi iSCSI host unable to access storage after switch updateWed, 08 Oct 2025
  • VMware VVol Space descrepancy with ONTAP volume LayerTue, 07 Oct 2025
  • What are the failure temperature thresholds for Brocade switches?Mon, 06 Oct 2025
  • LUN nearly full despite available volume space in ONTAPMon, 06 Oct 2025
  • SQL Lun displays as rawThu, 02 Oct 2025
  • Unable to create iSCSI volumes due to initiator misconfigurationThu, 02 Oct 2025
  • Database Slowness and SCSI Target Timeout (scsitarget.fct.fntimeout) Due to low power on swtich portThu, 02 Oct 2025
  • FC initiator port not connecting to a new Brocade G620 switchWed, 01 Oct 2025
  • ONTAP SAN SnapMirror Active Sync out of sync after disasterWed, 01 Oct 2025
  • No access to LUNs during Hyper-V network maintenanceWed, 01 Oct 2025
  • ONTAP LUN has less free space than Windows disk despite space allocation being enableWed, 01 Oct 2025
  • iSCSI IO communication fails after a takeoverTue, 30 Sep 2025
  • NVME Standby path's not being utilized when attached to a hostFri, 26 Sep 2025
  • NVMe/TCP Datastores Become Inaccessible After ONTAP UpgradeFri, 26 Sep 2025
  • FC paths down to one node after MetroCluster switchbackFri, 17 Oct 2025
  • ONTAP SAN SCSI errors in new ESXi setup with iSCSI connectionFri, 17 Oct 2025
  • FC paths down after ONTAP upgradeFri, 17 Oct 2025
  • ONTAP SAN ESXi iSCSI host unable to access storage after switch updateFri, 17 Oct 2025
  • Is it recommended to have ISCSI and NFS configuration on same linkThu, 16 Oct 2025
  • Vmware Guest host which utilize iSCSI LUNs hung during ONTAP node PanicWed, 15 Oct 2025
  • LUN inaccessibility issue post activity being performed on node due to misconfiguration of MPIO on host endWed, 15 Oct 2025
  • How to estimate overwrite space for LUN volumes with fractional_reserve set to 0 in ONTAPWed, 15 Oct 2025
  • What is the impact if the LUN type is configured incorrectly?Tue, 14 Oct 2025
  • Can you mount a cifs/nfs share via block storage?Mon, 13 Oct 2025
  • LUN connection lost on reboot or upgradeThu, 09 Oct 2025
  • Can FC initiators direct attach to ONTAP systems?Thu, 09 Oct 2025
  • ONTAP SAN NVMe datastore reports full after failed vMotionWed, 08 Oct 2025
  • ONTAP NVMe namespaces missing after Microsoft SQL Server HBA replacementWed, 08 Oct 2025
  • VMware VVol Space descrepancy with ONTAP volume LayerTue, 07 Oct 2025
  • What are the recommendations for the host stacks supporting SCSI UNMAP (TRIM) commands for space reclamation?Tue, 07 Oct 2025
  • What are the failure temperature thresholds for Brocade switches?Mon, 06 Oct 2025
  • LUN nearly full despite available volume space in ONTAPMon, 06 Oct 2025
  • FCP SRAM DUMP and IO WQE failure with Ext_Status 0x16 caused by same host SIDSat, 04 Oct 2025
  • Database Slowness and SCSI Target Timeout (scsitarget.fct.fntimeout) Due to low power on swtich portFri, 03 Oct 2025