vSphere ESX – Configure Buffalo Terastation 5000 as an iSCSI Target


KB ID 0000899 Dtd 06/01/14


This little NAS box is a cheap way of adding a large amount of storage. Below I’m going to configure it as an iSCSI target, then connect my ESX5 host to it.

Buffalo NAS Box

I’m not setting up any CHAP authentication, but I’ll show you where it’s configured, if you want to deploy yours a little more securely.

Also it’s considered good practice to separate your storage network traffic, from your actual network traffic (either physically or via VLANs). Here I’m also NOT doing that.


Initial Configuration of the TS5000

If you connect either of the NAS box’s NICs to your network they will pick up an IP address via DHCP (You will see it in your DHCP leases).

1. Connect to the NAS with a web browser, the default password is ‘password’.

Terastation default password

2. To change the default password: Enter Easy Admin mode > Reset Password > Follow the instructions.

Buffalo change password

3. Team / Trunk The NICs: You can have each NIC with its own IP address, but I prefer to aggregate them > Network > Port Trunking > Configure port trunking.

Team Buffalo NICs

4. Select ‘Link 1’.

NAS Trunking

5. Select All > Assign.

Buffalo Network Team

6. It may take a few seconds.

Buffalo Create Port Trunk

Configure iSCSI

7. First enable iSCSI > Drives > iSCSI > Click the switch to enable.

TS5000 Configure iSCSI

8. Configure iSCSI

VMware Terastation iSCSI

9. Create Volume.

Create iSCSI Volume

10. Give the volume a name, description, and specify the volume size > OK.

Note: If you wanted to configure authentication select enabled, and set accordingly.

Buffalo CHAP VMware

11. Enter the numbers as requested > OK.

Capcha Code

12. This can take a couple of minutes also.

Terastation VMware

Configure ESX For iSCSI

13. Connect to either your ESX host or vCenter > Select a host > Configuration > Networking > Add Networking > Create a new vSwitch > Add a VMkernel port group (called iSCSI or something sensible) > Assign a free NIC, and give it an IP address on the same range as the NAS box.

VMware iSCSI Setup

14. Storage Adaptors > If you do not see any, select ‘Add’ and add in a software iSCSI Adapter.

Add iSCSI Adapter to ESX

15. Right click your iSCSI Adapter > Network configuration > Bind it to the port group you created in step 13.

Bind iSCSI Port Group

16. Then on either the Dynamic or the Static discovery tab, enter the IP address of the NAS box.

VMware vSphere iSCSI Setup

17. Storage > Add Storage > Disk/LUN > Select the iSCSI storage > Follow the instructions.

VSphere ESX Add iSCSI

18. Repeat the process on your remaining ESX hosts. (Note: You will only need to create the VMFS volume(s) for the first one).

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Author: Migrated

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