NetApp: Lab. 2/6 - Basic NetApp iSCSI Setup and LUN Creation using CLI

1. Basic Single-Path iSCSI Setup

To verify the storage system's e0b interface configuration:

system> ifconfig e0b

To license the iSCSI service:

system> license add ISCSICODE

To start the iSCSI service:

system> iscsi start

To verify e0b interface is enabled for iSCSI:

system> iscsi interface show

To display the storage system's WWNN:

system> iscsi nodename

Windows: Configure iSCSI initiator and connect to switch.

2. NetApp: Create LUN for Windows

To create an igroup:

system> igroup create -i -t windows iWIN_iscsi iqn.1991-05.com.microsoft:win

To show the existing igroups:

system> igroup show

Best Practice: Do not put LUNs in the root volume

To create an aggregate with 7 disks:

system> aggr create aggr_SAN 7

To create volume for the LUN:

system> vol create vol_SAN1 aggr_SAN 4g

To turn off the default Snapshot policy for the volume:

system> snap reserve vol_SAN1 0

system> vol options vol_SAN1 nosnap on

To create a LUN named lun1:

system> lun create -s 2g -t windows /vol/vol_SAN1/lun1

To map the LUN to the igroup:

system> lun map /vol/vol_SAN1/lun1 iWIN_iscsi

To verify the LUN mapping:

system> lun show -m

Windows: Rescan, initialize, and format disk.

2. Expanding Basic Single-Path iSCSI Setup to iSCSI Multi-Path Setup

Verify the storage system's e0c interface configuration:

system> ifconfig e0c

Verify the interface is enabled for iSCSI:

system> iscsi interface show

Install Microsoft Multipath I/O Role.

Install Data ONTAP DSM for Windows MPIO.

Configure second Ethernet interface on Windows Server.

To find which interface is associated with which target portal group:

System> iscsi tpgroup show

In Windows, connect a second iSCSI interface to second target portal.

To create a TPG:

system> iscsi tpgroup create mytp

To assign interface to a TPG:

system> iscsi tpgroup add -f mytp e0b e0c

To verify TPG:

system> iscsi tpgroup show

To verify current session(s):

system> iscsi session show

To verify current connection(s):

system> iscsi connection show -v

In Windows configure Multiple Connected Session (MCS)

To verify current sessions:

system> iscsi session show

To verify current connections:

system> iscsi connection show -v

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