Why is the storage system generating iSCSI LUN Reset/Target Warm Reset/New session messages? [iscsi.notice:notice]: ISCSI: iswta, LUN Reset (from initiator iqn.1991-05.com.microsoft:exch), aborting al...Why is the storage system generating iSCSI LUN Reset/Target Warm Reset/New session messages? [iscsi.notice:notice]: ISCSI: iswta, LUN Reset (from initiator iqn.1991-05.com.microsoft:exch), aborting all SCSI commands on lun 0 A connection to the target was lost, but Initiator successfully reconnected to the target. Dump data contains the target name. The CDB is given in the dump data. Initiator sent a task management command to reset the target. The target name is given in the dump data.
Networking Best Practices for ONTAP 9 are in the respective sections in Ethernet Storage Design Considerations, Best Practices for Clustered Data ONTAP | TR-4182 Disable flow control on all cluster ne...Networking Best Practices for ONTAP 9 are in the respective sections in Ethernet Storage Design Considerations, Best Practices for Clustered Data ONTAP | TR-4182 Disable flow control on all cluster network ports in an ONTAP cluster. Ethernet Storage Design Considerations, Best Practices for Clustered Data ONTAP | TR-4182 Data ONTAP 8.2 Network Management Guide For 7-Mode
Applies to ONTAP 9.x SAN Protocol Description This article describes the procedure that should be followed to identify the controller's iSCSI IQN in clustered Data ONTAP.
Applies to ONTAP 9 Cluster network switches Inter-Switch Links (ISL) Issue The following AutoSupport alert is sent when one or more ISLs are down between the two cluster network switches: Message ONTA...Applies to ONTAP 9 Cluster network switches Inter-Switch Links (ISL) Issue The following AutoSupport alert is sent when one or more ISLs are down between the two cluster network switches: Message ONTAP version ClusterIfIslDownWarn_Alert ONTAP 9.9.1 and later SwitchIfIslDownWarn_Alert ONTAP 9.8 and earlier If any of these ports go down, or if they were never configured when the switch was brought online, that alert will be reported at regular intervals, until the configuration is corrected.
During normal operations, there is no need for SAN logical interfaces (LIFs) to move from one cluster node or physical port to another, but there are several circumstances in which non-disruptive migr...During normal operations, there is no need for SAN logical interfaces (LIFs) to move from one cluster node or physical port to another, but there are several circumstances in which non-disruptive migration of LIFs might be required: This does involve an interruption in I/O on the LIF to be moved, but since redundant paths and automatic path selection through ALUA are part of any clustered ONTAP SAN solution; this should simply cause hosts to retry and then move I/O to another LIF.
Applies to Clustered Data ONTAP 8 Description Performance and Statistics Collector (Perfstat) data is required to troubleshoot storage system performance issues. This article includes information on t...Applies to Clustered Data ONTAP 8 Description Performance and Statistics Collector (Perfstat) data is required to troubleshoot storage system performance issues. This article includes information on the Perfstat tool and instructions on collecting Perfstat data using the tool either via RSH or SSH. For a detailed description of Perfstat, see article 3013639: What is the Perfstat Data Collection tool?
