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

SEO: Walkthrough / Step by Step

Comments

  1. Your blog is awesome with the best net app stuff I have seen ! Keep up the good work :)

    Chris

    ReplyDelete
    Replies
    1. Hi Chris, thank you very much for the kind comment. Cheers!

      Delete
  2. Why did you add interfaces directly to the tpgroup?
    Is it not better to create a vif-lacp... and enable iscsi on the vif? Imre

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