Dell Z9500 Configuration Manual page 453

CONFIGURATION mode
iscsi enable
3 For a DCB environment: Configure iSCSI Optimization.
EXEC Privilege mode
iSCSI configuration: copy CONFIG_TEMPLATE/iSCSI_DCB_Config running-config.
The configuration files are stored in the flash memory in the CONFIG_TEMPLATE file.
NOTE: DCB/DCBx is enabled when you apply the iSCSI configuration in step 3. If you manually apply the iSCSI
configuration by following steps 1 and 2, enable link layer discovery protocol (LLDP) before enabling iSCSI in step 2. You
cannot disable LLDP if you enable iSCSI.
4 Save the configuration on the switch.
EXEC Privilege mode
write memory
5 Reload the switch.
EXEC Privilege mode
reload
After the switch is reloaded, DCB/ DCBx and iSCSI monitoring are enabled.
6 (Optional) Configure the iSCSI target ports and optionally the IP addresses on which iSCSI communication is monitored.
CONFIGURATION mode
[no] iscsi target port tcp-port-1 [tcp-port-2...tcp-port-16] [ip-address address]
• tcp-port-n is the TCP port number or a list of TCP port numbers on which the iSCSI target listens to requests. You
can configure up to 16 target TCP ports on the switch in one command or multiple commands. The default is 860,
3260.
Separate port numbers with a comma. If multiple IP addresses are mapped to a single TCP port, use the no iscsi
target port tcp-port-n command to remove all IP addresses assigned to the TCP number.
To delete a specific IP address from the TCP port, use the no iscsi target port tcp-port-n ip-address
address command to specify the address to be deleted.
• ip-address specifies the IP address of the iSCSI target. When you enter the no form of the command, and the TCP
port you want to delete is one bound to a specific IP address, include the IP address value in the command.
If multiple IP addresses are mapped to a single TCP port, use the no iscsi target port command to remove all IP
addresses assigned to the TCP port number.
To remove a single IP address from the TCP port, use the no iscsi target port ip-address command.
7 (Optional) Set the QoS policy that is applied to the iSCSI flows.
CONFIGURATION mode
[no] iscsi cos {enable | disable | dot1p vlan-priority-value [remark] | dscp dscp-value
[remark]}
• enable: enables the application of preferential QoS treatment to iSCSI traffic so that iSCSI packets are scheduled in the
switch with a dot1p priority 4 regardless of the VLAN priority tag in the packet. The default is: iSCSI packets are handled
with dotp1 priority 4 without remark.
• disable: disables the application of preferential QoS treatment to iSCSI frames.
• dot1p vlan-priority-value: specifies the virtual local area network (VLAN) priority tag assigned to incoming
packets in an iSCSI session. The range is from 0 to 7. The default is: the dot1p value in ingress iSCSI frames is not
changed and the same priority is used in iSCSI TLV advertisements if you do not enter the iscsi priority-bits
command (Step 10).
iSCSI Optimization 453