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Chapter 4 RAID Modes and Drive Management
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 a name already in use as a shared folder name; 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)
• There are two options for the "Backstore" setting to select the type of iSCSI volume. Refer to the differences below.
◦ File I/O: This type of volume can specify the volume size and multiple volumes can be created on one drive
or RAID array. This also allows you to expand the volume size after the volume is created and data has been
stored.
Snapshots can be created on the iSCSI volume. The volume can also be set as a backup folder. However, be
careful in regards to the free space on the volume being used for snapshots. The actual free space will be
smaller than the value displayed on the Properties window in Windows. Use the Dashboard in Settings to
verify the actual free space.
◦ Block I/O: This type of volume will create an iSCSI volume for a whole drive or RAID array. However, if you
enable LVM, you can create multiple volumes on the drive or the RAID array or expand the volume size later,
just like a file I/O volume. It is recommended to enable LVM if you want to create multiple volumes on one
drive or RAID array, or expand the volume later.
Block I/O volumes afford higher performance than file I/O volumes because there is less latency when
bypassing the file system layer required for file I/O.
Be aware that block I/O volumes with LVM enabled cannot use snapshots. The volumes also cannot be
used as the backup folders.
1
From Settings, click Storage.
2
Move the iSCSI switch (
3
Click the settings icon (
) to the
position to enable iSCSI.
) to the right of "iSCSI".
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