Using The Terastation As An Iscsi Device; Introduction; Creating An Iscsi Volume - Buffalo TeraStation 3010 User Manual

Chapter 4 Storage Management
Notes:
• If you click Show under "Volume List", the volumes will be listed on the screen and you can see if these volumes
are being used as iSCSI or NAS.
• If an LVM volume could not be mounted, try restarting the TeraStation. If an issue still exists, delete and recreate
the LVM volume. Deleting the LVM volume will erase data on the volume.

Using the TeraStation as an iSCSI Device

Introduction

iSCSI is a protocol for carrying SCSI commands over IP networks. Unlike traditional SAN protocols such as Fibre
Channel, which requires special-purpose cabling, iSCSI can be run over long distances using existing network
infrastructure. Normal Windows formatting such as NTFS is supported.
Differences Between NAS and iSCSI
With iSCSI, the TeraStation is connected to a single computer, such as a server. Other computers on the network
access files on the TeraStation through the computer it's connected to. The TeraStation can be used as a local drive
from Windows Server. Features of Windows Server such as Active Directory can be used normally.
As a NAS, the TeraStation is a server, and computers (including other servers) on the network can access shared
folders on it directly. A separate server is not required, and features such as backup are built-in.
Network Configuration
Use gigabit or faster network equipment with iSCSI. For best results, a dedicated network for iSCSI is recommended,
separate from the regular network. By default, the IP address of the TeraStation is automatically assigned from a
DHCP server. However, in this case, if you turn off and restart the TeraStation, the IP address may be changed and
the volumes on the TeraStation may not be accessible. To avoid changing the IP address unexpectedly, using a static
IP address for the TeraStation is recommended.
Connection Tool
The Microsoft iSCSI Software Initiator is already installed on your computer. You don't need to download and install
it.

Creating an iSCSI Volume

To use the TeraStation as an iSCSI drive, create a volume first. Configure the TeraStation as described below.
Notes:
• If the volume settings are changed, all data on the volume will be erased. Before changing any settings, back up
any important data.
• The TeraStation can have up to 255 volumes, but we recommend creating no more than 32. Exceeding this
volume amount may cause irreparable damage to the unit.
• Do not use any of the following words for the name of a volume as these words are reserved for internal use by
the TeraStation: array x, authtest, disk x, global, homes, info, lost+found, lp, mediacartridge x, msdfs_root, mt-
daapd, printers, ram, spool, usbdisk x. Any instances of "x" denote a number (for example: array1 or disk3)
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