Connectivity Guide

1 Congure an interface or interface range to detect a connected storage device.
interface ethernet node/slot/port:[subport]
interface range ethernet node/slot/port:[subport]-node/slot/port[:subport]
2 Enable the interface to support a storage device that is directly connected to the port and not automatically detected by iSCSI. Use
this command for storage devices that do not support LLDP. The switch auto-detects and auto-congures Dell EMC EqualLogic
storage arrays directly connected to an interface when you enable iSCSI optimization.
iscsi profile-storage storage-device-name
3 Congure DCBX to use LLDP to send iSCSI application TLVs with dot1p priorities for iSCSI trac in INTERFACE mode.
lldp tlv-select dcbxp-appln iscsi
4 Return to CONFIGURATION mode.
exit
5 (Optional) If necessary, re-congure the iSCSI TCP ports and IP addresses of target storage devices in CONFIGURATION mode.
Separate TCP port numbers with a comma, from 0 to 65535; default 860 and 3260.
iscsi target port tcp-port1 [tcp-port2, ..., tcp-port16] [ip-address ip-address]
6 Congure the QoS policy applied to ingress iSCSI ows. Apply the service policy to ingress interfaces in CONFIGURATION mode.
(Optional) Reset the default CoS dot1p priority, the default is 4 and/or the trusted DCSP value used for iSCSI trac. Assign an
internal qos-group queue, from 0 to 7, to dot1p, from 0 to 7, and DSCP, from 0 to 63, values in POLICY-CLASS-MAP mode.
class-map type application class-iscsi
policy-map type application policy-iscsi
class class-iscsi
set qos-group
traffic-class-number
set cos dot1p-priority
set dscp dscp-value
end
service-policy type application policy-iscsi
7 Enable iSCSI monitoring sessions on TCP ports in CONFIGURATION mode.
iscsi session-monitoring enable
8 (Optional) Set the aging time for the length of iSCSI monitoring sessions in CONFIGURATION mode, 5 to 43,200 minutes; default 10.
iscsi aging time [minutes]
9 (Optional) Recongure the dot1p priority bits advertised in iSCSI application TLVs in CONFIGURATION mode. The default bitmap is
0x10 (dot1p 4). The default dot1p 4 value is sent in iSCSI application TLVs only if you enabled the PFC pause for dot1p 4 trac using
the
pfc-cos dot1p-priority command.
If you do not congure an iscsi priority-bits dot1p value and you congure a set cos value in Step 6, the set cos value
is sent in iSCSI application TLVs. If you congure neither the
iscsi priority-bits nor the set cos value, the default dot1p 4
advertises.
iscsi priority-bits dot1p-bitmap
10 Enable iSCSI auto-detection and auto-conguration on the switch in CONFIGURATION mode.
iscsi enable
Congure iSCSI optimization
OS10(config)# interface ethernet 1/1/1
OS10(conf-if-eth1/1/1)# iscsi profile-storage compellent
OS10(conf-if-eth1/1/1)# lldp tlv-select dcbxp-appln iscsi
OS10(conf-if-eth1/1/1)# exit
OS10(config)# iscsi target port 3261 ip-address 10.1.1.1
OS10(config)# policy-map type application policy-iscsi
OS10(config-pmap-application)# class class-iscsi
OS10 (config-pmap-c-app)# set qos-group 4
OS10 (config-pmap-c-app)# set cos 4
OS10 (config-pmap-c-app)# exit
OS10(config-pmap-application)# exit
OS10(config)# system qos
OS10(config-sys-qos)# service-policy type application policy-iscsi
OS10(config-sys-qos)# exit
Converged data center services
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