Using The Terastation As An Iscsi Device; Introduction - Buffalo TeraStation 5020 User Manual

Chapter 4 RAID Modes and Drive Management
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Enter a volume name and size, then click OK.
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The process is complete once you close the confirmation window that appears.
The usable capacity can now be limited by selecting the volume that you created for "Drive/Array" on the Basic tab
when creating a shared folder.
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 the LVM
volume and recreate it. Deleting the LVM volume will erase all data on the volume.
• The available capacity will be less than the capacity you entered when creating an LVM volume. This is because
some free space will be occupied by the system.

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.
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