Configuring The Virtual N Port; Assigning The Scsi Read/Write - Cisco MDS 9000 series Configuration Manual

Chapter 3 Configuring the SAN Extension Tuner
S e n d d o c u m e n t a t i o n 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

Configuring the Virtual N Port

To configure the virtual N port for tuning, follow these steps:
Command
Step 1
switch# config t
switch(config)#
Step 2
switch(config)# feature iscsi
switch(config)# iscsi enable module 1
Step 3
switch(config)# interface iscsi 3/4
switch(config-if)#
Step 4
switch(config-if)# no shutdown
Step 5
switch(config-if)# end
switch#
Step 6
switch# san-ext-tuner
switch(san-ext)#
Step 7
switch(san-ext)# nWWN 10:00:00:00:00:00:00:00
Step 8
switch(san-ext)# nport pWWN
12:00:00:00:00:00:00:56 vsan 200 interface
gigabitethernet 3/4
switch(san-ext-nport)#
switch(san-ext)# no nport pWWN
22:34:56:78:90:12:34:56 vsan 200 interface
gigabitethernet 3/4

Assigning the SCSI Read/Write

You can assign SCSI read and write commands on a one-time basis or on a continuous basis.
To assign SCSI read or write commands on a one-time basis, follow these steps:
Command
Step 1
switch# san-ext-tuner
switch(san-ext)#
Step 2
switch(san-ext)# nWWN 10:00:00:00:00:00:00:00
Step 3
switch(san-ext)# nport pWWN
12:00:00:00:00:00:00:56 vsan 200 interface
gigabitethernet 3/4
switch(san-ext-nport)#
Step 4
switch(san-ext-nport)# read command-id 100
target 22:22:22:22:22:22:22:22 transfer-size
512000 outstanding-ios 2 num-transactions
5000000
Step 5
switch(san-ext-nport)# write command-id 101
target 22:22:22:22:22:22:22:22 transfer-size
512000 outstanding-ios 2 num-transactions
5000000
OL-19525-01,Cisco MDS NX-OS Release 4.2(1)
Purpose
Enters configuration mode.
Enables iSCSI globally and then on module
1.
Creates an iSCSI interface and enters
interface configuration submode.
Enables the iSCSI interface.
Returns to EXEC mode.
Enters the SET configuration submode.
Configures the nWWN for the SAN
extension tuner.
Creates a virtual N port on the specified
Gigabit Ethernet port and VSAN. This N port
can act as an initiator or a target.
Removes a virtual N port on the specified
Gigabit Ethernet port and VSAN.
Purpose
Enters the SET configuration submode.
Configures the nWWN for the SAN
extension tuner.
Creates a virtual N port on the specified
Gigabit Ethernet port and VSAN. This N port
can act as an initiator or a target.
Specifies a transfer size of 512,000 bytes
with two outstanding I/Os in the read
command. The total number of I/Os is
5,000,000 bytes.
Specifies a transfer size of 512,000 bytes
with two outstanding I/Os in the write
command received by the target. The total
number of I/Os is 5,000,000 bytes.
Cisco MDS 9000 Family NX-OS IP Services Configuration Guide
Configuring the SAN Extension Tuner
3-5