ZyXEL NSA320S User Guide - Page 151

Overview

Page 151 highlights

CHAPTER 7 Storage 7.1 Overview Several NSA features require a valid internal volume. This chapter covers the management of volumes and disks (both internal and external). Use the Storage screen (Section 7.2 on page 152) to display information on all volumes, create internal and external volumes, and configure the volume's properties. 7.1.1 What You Need to Know About Storage Disk SATA or Serial ATA (Advanced Technology Attachment) is a computer bus technology that allows high-speed data transfer to and from hard disks. 1-bay NSA models include an eSATA port. An eSATA (external SATA) hard disk has the same specifications as a SATA hard disk but is attached to the NSA using a cable. It can be used either to expand storage or backup data. The eSATA hard disk is optional. You can attach one SATA and one eSATA to the NSA hard disk tray. Both SATA and eSATA hard disks are treated as internal disks/ volumes (refer to Section 7.3 on page 155). USB-attached storage disks are treated as external disks/volumes. Volume A volume is a storage area on a disk or disks. You can create volumes on the internal disks and external disks attached to the USB port(s). You can spread a volume across internal disks but not between internal and external disks. Storage Methods The NSA uses the following storage methods: • RAID (Redundant Array of Independent Disks) • PC Compatible Volume (1-bay models) • JBOD (Just a Bunch of Disks) The storage method you use depends on how many disks you have and how many volumes you want to create. It's important that you consider this carefully as all data is deleted when you recreate a volume. See Figure 7.6.2 on page 160 for details on choosing a storage method. Media Server User's Guide 151

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Media Server User’s Guide
151
C
HAPTER
7
Storage
7.1
Overview
Several NSA features require a valid internal volume. This chapter covers the management of
volumes and disks (both internal and external).
Use the
Storage
screen (
Section 7.2 on page 152
) to display information on all volumes, create
internal and external volumes, and configure the volume’s properties.
7.1.1
What You Need to Know About Storage
Disk
SATA or Serial ATA (Advanced Technology Attachment) is a computer bus technology that allows
high-speed data transfer to and from hard disks.
1-bay NSA models include an eSATA port. An eSATA (external SATA) hard disk has the same
specifications as a SATA hard disk but is attached to the NSA using a cable. It can be used either to
expand storage or backup data. The eSATA hard disk is optional. You can attach one SATA and one
eSATA to the NSA hard disk tray. Both SATA and eSATA hard disks are treated as internal disks/
volumes (refer to
Section 7.3 on page 155
).
USB-attached storage disks are treated as external disks/volumes.
Volume
A volume is a storage area on a disk or disks. You can create volumes on the internal disks and
external disks attached to the USB port(s). You can spread a volume across internal disks but not
between internal and external disks.
Storage Methods
The NSA uses the following storage methods:
RAID (Redundant Array of Independent Disks)
PC Compatible Volume (1-bay models)
JBOD (Just a Bunch of Disks)
The storage method you use depends on how many disks you have and how many volumes you
want to create. It’s important that you consider this carefully as all data is deleted when you re-
create a volume. See
Figure 7.6.2 on page 160
for details on choosing a storage method.