Performing Basic Dynamic Iscsi Troubleshooting; Useful Show Commands For Debugging Dynamic Iscsi Configuration - Cisco MDS 9000 Series Troubleshooting Manual

Chapter 5 Troubleshooting IP Storage Issues
S e n d c o m m e n t s t o m d s f e e d b a c k - d o c @ c i s c o . c o m .
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Performing Basic Dynamic iSCSI Troubleshooting

Keep the following in mind when performing basic dynamic iSCSI troubleshooting:
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Useful show Commands for Debugging Dynamic iSCSI Configuration

The output from the following commands reflects correctly established iSCSI sessions. Execute the
same commands on your switch and compare with the output below to help identify possible issues:
show iscsi session detail
show iscsi remote-node initiator
show iscsi stats
show iscsi stats detail
show iscsi local-node
show fcns data vsan 1
show flogi database vsan 1
show iscsi session detail
switch#show iscsi session detail
Initiator iqn.1987-05.com.cisco.02.F984BCA7E08C307E2D87A099B2D452F3.FULLMOON (FULLMOON)
Session #1 (index 2)
OL-5183-02, Cisco MDS SAN-OS Release 1.3
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interface iscsi 3/1
no shutdown
Verify that the IP parameters are correct.
Verify authentication on gigabit Ethernet interface (None or Chap) matches the authentication
configured on the iSCSI initiator. Note that configuring authentication at the interface level
overrides the Global Authentication setting.
Verify gigabit Ethernet switchport parameters are correct (MTU, mode, etc.).
iscsi import target fc must be enabled in order to allow SCSI targets to be discovered by the
logged-in iSCSI initiators.
Dynamic iSCSI configuration places all iSCSI initiators logging into the MDS9000 into VSAN 1 by
default.
Any zoning in effect on the default VSAN (VSAN1) will also be applied to iSCSI-connected
devices.
Target iqn.com.domainname.IPS-TEST.02-07.gw.202300a0b80b14da
VSAN 1, ISID 000000000000, TSID 134, Status active, no reservation
Type Normal, ExpCmdSN 44, MaxCmdSN 53, Barrier 0
MaxBurstSize 0, MaxConn 0, DataPDUInOrder No
DataSeqInOrder No, InitialR2T Yes, ImmediateData No
Registered LUN 0, Mapped LUN 0
Stats:
PDU: Command: 42, Response: 36
Troubleshooting iSCSI Issues
Cisco MDS 9000 Family Troubleshooting Guide
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