Operation Manual
Table Of Contents
- Media Server
- User’s Guide
- Getting to Know Your NSA
- NAS Starter Utility
- zCloud
- Web Configurator Basics
- Tutorials
- 5.1 Overview
- 5.2 Windows 7 Network
- 5.3 Windows 7 Network Map
- 5.4 Playing Media Files in Windows 7
- 5.5 Windows 7 Devices and Printers
- 5.6 Creating a Volume in a 2-Bay NSA
- 5.7 Creating a Volume in a 1-Bay NSA
- 5.8 Deleting a Volume
- 5.9 File Sharing Tutorials
- 5.10 Download Service Tutorial
- 5.11 Broadcatching Tutorial
- 5.12 Printer Server Tutorial
- 5.13 Copy and Flickr Auto Upload Tutorial
- 5.14 FTP Uploadr Tutorial
- 5.15 Web Configurator’s Security Sessions
- 5.16 Using FTPES to Connect to the NSA
- 5.17 Using a Mac to Access the NSA
- 5.18 How to Use the BackupPlanner
- Technical Reference
- Status Screen
- System Setting
- Storage
- Network
- Applications
- 10.1 Overview
- 10.2 What You Can Do
- 10.3 What You Need to Know
- 10.4 FTP Server
- 10.5 The Media Server Screens
- 10.6 The iTunes Server Screen
- 10.7 The Download Service Screen
- 10.8 The Web Publishing Screen
- 10.9 The Broadcatching Screen
- 10.10 The Print Server Screen
- 10.11 The Copy/Sync Button Screen
- 10.12 Technical Reference
- 10.12.1 Sharing Media Files on Your Network
- 10.12.2 Download Service
- 10.12.3 Link Capture Browser Plugin
- 10.12.4 Download Service Notification
- 10.12.5 P2P Download Security
- 10.12.6 Web Publishing Example
- 10.12.7 Web Publishing
- 10.12.8 Channel Guides for Broadcatching
- 10.12.9 Printer Sharing
- 10.12.10 Copying Files
- 10.12.11 Synchronizing Files
- Packages
- 11.1 Overview
- 11.2 What You Can Do
- 11.3 SMART Screen
- 11.4 DyDNS Screen
- 11.5 NFS Screen
- 11.6 Syslog Server Screen
- 11.7 TFTP Server Screen
- 11.8 eMule Screens
- 11.9 pyLoad Screen
- 11.10 ownCloud Setup
- 11.11 Polkast Setup
- 11.12 GoogleDrive
- 11.13 Memopal
- 11.14 Protect Screens
- 11.15 Backup Screens
- 11.16 Restore Screen
- 11.17 Technical Reference
- Auto Upload
- Dropbox
- Using Time Machine with the NSA
- Users
- Groups
- Shares
- Maintenance Screens
- Protecting Your Data
- Troubleshooting
- 20.1 Troubleshooting Overview
- 20.2 Power, Hardware, Connections, and LEDs
- 20.3 NAS Starter Utility
- 20.4 NSA Login and Access
- 20.5 I Cannot Access The NSA
- 20.6 Users Cannot Access the NSA
- 20.7 External USB Drives
- 20.8 Firmware
- 20.9 File Transfer
- 20.10 Networking
- 20.11 Some Features’ Screens Do Not Display
- 20.12 Media Server Functions
- 20.13 Download Service and Broadcatching Functions
- 20.14 Web Publishing
- 20.15 Auto Upload
- 20.16 Package Management
- 20.17 Backups
- 20.18 Google Drive
- Customer Support
- Product Specifications
- Legal Information
- Index
Chapter 8 Storage
Media Server User’s Guide
172
RAID 0
RAID 0 spreads data evenly across two or more disks (data striping) with no mirroring nor parity for
data redundancy, so if one disk fails the entire volume will be lost. The major benefit of RAID 0 is
performance. The following figure shows two disks in a single RAID 0 volume. Data can be written
and read across disks simultaneously for faster performance.
RAID 0 capacity is the size of the smallest disk multiplied by the number of disks you have
configured at RAID 0 on the NSA. For example, if you have two disks of sizes 100 GB and 200 GB
respectively in a RAID 0 volume, then the maximum capacity is 200 GB (2 * 100 GB, the smallest
disk size) and the remaining space (100 GB) is unused.
Typical applications for RAID 0 are non-critical data (or data that changes infrequently and is
backed up regularly) requiring high write speed such as audio, video, graphics, games and so on.
RAID 1
RAID 1 creates an exact copy (or mirror) of a set of data on another disk. This is useful when data
backup is more important than data capacity. The following figure shows two disks in a single RAID
1 volume with mirrored data. Data is duplicated across two disks, so if one disk fails, there is still a
copy of the data.
As RAID 1 uses mirroring and duplexing, a RAID 1 volume needs an even number of disks (two or
four for the NSA).
RAID 1 capacity is limited to the size of the smallest disk in the RAID array. For example, if you
have two disks of sizes 150 GB and 200 GB respectively in one RAID 1 volume, then the maximum
capacity is 150 GB and the remaining space (50 GB) is unused.
Table 29 RAID 0
A1 A2
A3 A4
A5 A6
A7 A8
DISK 1 DISK 2
Table 30 RAID 1
A1 A1
A2 A2
A3 A3
A4 A4
DISK 1 DISK 2