ZyXEL Communications NSA-2401 User Manual
NSA-2401 User’s Guide
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H A P T E R
6
Storage Screens
6.1 Storage Screens Overview
Use the storage screens to work with disks, RAIDs, and volumes to manage the NSA’s
storage.
storage.
6.1.1 What You Can Do in the Storage Screens
• Use the Internal Storage screens (
through
) to view and configure the NSA’s installed disks, RAIDs, and volumes.
• Use the External Storage screens (
through
) to view and configure USB-connected disks and volumes.
6.1.2 What You Need to Know About Storage
Disks
Disks are the physical storage drives you use with the NSA. Internal storage is the hard drives
you install inside the NSA. External storage is USB-connected drives.
you install inside the NSA. External storage is USB-connected drives.
RAIDs
A hard drive array (RAID) is a storage method that lets you store data across multiple internal
disks. You combine the internal disks into arrays. Each disk must belong to an array in order to
use it. You can create multiple arrays.
disks. You combine the internal disks into arrays. Each disk must belong to an array in order to
use it. You can create multiple arrays.
Volumes
A volume is a storage area that you create on an array of internal disks or an external disk.
The following diagram shows disks one to four combined into RAID Array 1. Volumes A, B,
and C are on RAID Array 1.
and C are on RAID Array 1.
Figure 123 Disks, RAIDs, and Volumes
RAID Array 1
Disk 1
Disk 2
Disk 3
Disk 4
Volume A
Volume B
Volume C