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Hot-spare, RAID and Data Protection

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Chapter 8 Storage Manager GB and 250 GB respectively in one RAID 5 array, then the maximum capacity is 450 GB (3 * 150 GB, the smallest disk size) and the remaining space (300 GB) is unused. Typical applications for RAID 10 are transaction processing, relational database applications, enterprise resource planning and other business systems. For write-intensive applications, RAID 1 or RAID 1+0 are probably better choices, as the performance of RAID 5 will begin to substantially decrease in a write-heavy environment. Hot-spare A RAID 1 or RAID 5 array with a hot-spare operates as a three-disk RAID 1 or RAID 5 array with the fourth disk on standby. The standby disk automatically comes into play if a disk in the array fails. The advantage of a hot-spare is that if a disk fails, then the array resynchronizes automatically with the standby disk and operates at healthy array speed after the resynchronization. Note: You need four hard disks installed to use RAID 10, RAID 5 or RAID 5 with hot- spare. RAID and Data Protection If a hard disk fails and you're using a RAID 1, RAID 10, or RAID 5 array then your data will still be available (but at degraded speeds until you replace the hard disk that failed and re-synchronize the array). However, RAID cannot protect against file corruption, virus attacks, files incorrectly deleted or modified, or the NAS malfunctioning. Cloud Storage User's Guide 102

Section	Page
Cloud Storage	1
Related Documentation and Online Support	2
Contents Overview	3
Table of Contents	4
Getting to Know Your NAS	14
1.1 Overview	14
1.2 LEDs	15
1.3 Hard Disks	16
1.4 SD Card	16
1.5 Power Button	16
1.6 COPY/SYNC Button	17
1.7 RESET Button	17
Getting Started	19
2.1 Overview	19
2.2 FindMe	19
2.3 NAS Starter Utility	19
2.3.1 NAS Seeker Screen	20
2.3.2 Main NAS Starter Utility Screen	21
2.3.3 Directory of the NAS	22
2.3.4 Network Drive	23
2.3.5 Configure System Settings	23
Accessing Your Cloud Remotely	26
3.1 myZyXELCloud Service	26
3.2 ZyXEL Drive	26
3.2.1 ZyXEL Drive Welcome	26
3.2.2 NAS and File List	27
3.2.3 Uploading and Media Streaming	28
zCloud	30
4.1 Using zCloud	30
4.2 zCloud TV Streaming	31
Managing Users, Groups, and Shares	33
5.1 Managing Users, Groups, and Shares	33
Backing Up, Retrieving, and Syncing Files	34
6.1 About Backups	34
6.2 Managing a USB Device and USB Backups	34
6.3 Remote Backups	34
6.4 Internal Backups	34
6.5 Cloud Backups	35
6.6 Synchronizing Files	35
Web Desktop at a Glance	36
Web Configurator	38
7.1 Overview	38
7.2 Accessing the NAS Web Configurator	38
7.3 Desktop	41
7.3.1 Status Zone	43
7.3.2 Grouping Icons	44
Storage Manager	47
8.1 Overview	47
8.2 Storage Manager Overview	47
8.3 Internal Storage	49
8.3.1 Creating a Volume	55
8.3.2 Managing a Volume	56
8.3.3 Creating a Volume on Disk Group	64
8.3.4 Editing a Volume on Disk Group	69
8.3.5 Disk Group	69
8.3.6 Hard Disk	74
8.4 iSCSI	81
8.4.1 iSCSI LUNs Screens	82
8.4.2 iSCSI Targets Screens	86
8.5 External Storage	95
8.5.1 What You Need to Know About External Storage	95
8.5.2 External Storage Screen	95
8.5.3 Format the Volume	97
8.6 Technical Reference	98
Status Center	103
9.1 Overview	103
9.1.1 System Information	103
9.1.2 Network	104
Control Panel	106
10.1 Overview	106
10.2 What You Can Do	106
10.3 What You Need to Know	106
10.4 TCP/IP Screens	107
10.4.1 Configuring General TCP/IP Settings	107
10.4.2 Configuring Network Interface	108
10.4.3 Configuring Web Configurator	112
10.4.4 Configuring Network Diagnosis	113
10.5 UPnP Port Mapping Screen	113
10.5.1 UPnP and the NAS’s IP Address	114
10.5.2 UPnP and Security	115
10.5.3 The NAS’s Services and UPnP	115
10.5.4 UPnP Router	116
10.5.5 Configuring UPnP Port Mapping	116
10.6 Terminal Screen	119
10.7 DyDNS Screen	120
10.8 FW Upgrade Screen	122
Videos, Photos, Music, & File Browser	124
11.1 Overview	124
11.2 File Browser	124
11.2.1 Configure Share Screen	126
11.2.2 Share and Folder Names	128
11.3 Photo	128
11.3.1 Exif and Google Maps (Photos)	130
11.3.2 Slideshow (Photos)	131
11.4 Music	132
11.4.1 Now Playing (Music)	134
11.5 Video	134
11.6 Playzone Settings	136
11.7 Application Zone	138
11.8 Media Server	138
11.9 iTunes Server	138
Administrator	139
12.1 Overview	139
12.2 Administrator Screens	139
12.2.1 Global Administrator Icons	140
12.2.2 Navigation Panel	140
12.2.3 Main Window	142
12.2.4 Status Messages	142
12.2.5 Common Administrator Screen Icons	142
12.2.6 Session Example (Windows)	142
Managing Packages	144
13.1 About Packages	144
13.2 Managing Packages	144
13.3 Available Packages	145
Tutorials	146
14.1 Overview	146
14.2 Windows 7 Network	146
14.2.1 If the NAS Icon Does Not Display	148
14.2.2 NAS Icon Right-click Options	149
14.3 Windows 7 Network Map	150
14.4 Playing Media Files in Windows 7	152
14.5 Windows 7 Devices and Printers	152
14.5.1 Windows 7 Desktop Shortcut	153
14.6 File Sharing Tutorials	155
14.6.1 Creating a User Account	155
14.6.2 Creating a Share	156
14.6.3 Creating a Group	157
14.6.4 Accessing a Share From Windows Explorer	158
14.6.5 Accessing a Share Using FTP	160
14.6.6 Accessing a Share Through the Web Configurator	161
14.7 Download Service Tutorial	162
14.7.1 Copying/Pasting a Download Link	162
14.7.2 Configuring the Download Service Preferences	165
14.7.3 Using Download Service Notification	168
14.8 Printer Server Tutorial	171
14.9 Copy and Flickr Auto Upload Tutorial	173
14.10 FTP Uploadr Tutorial	174
14.11 Web Configurator’s Security Sessions	177
14.11.1 Customizing the NAS’s Certificate	177
14.11.2 Downloading and Installing Customized Certificate	179
14.11.3 Turn on the NAS’s Web Security	182
14.12 Using FTPES to Connect to the NAS	188
14.13 Using a Mac to Access the NAS	189
14.13.1 Finder	189
14.13.2 Go Menu	191
14.14 How to Use the BackupPlanner	191
14.14.1 Creating an Archive Backup	192
14.14.2 Creating a Synchronization Backup	194
14.14.3 Restoring Archived Files by Backup Job	196
14.14.4 Restoring by Backup Files	198
Technical Reference	201
Status Screen	203
15.1 Overview	203
15.2 Status Screen	203
System Setting	205
16.1 Overview	205
16.2 What You Can Do	205
16.3 What You Need to Know	205
16.4 Package Management Screen	207
16.4.1 Displaying the Package Information	208
16.5 Server Name Screen	209
16.6 Date/Time Screen	210
Applications	213
17.1 Overview	213
17.2 What You Can Do	213
17.3 What You Need to Know	213
17.4 FTP Server Screen	215
17.5 Media Server Screens	216
17.5.1 Media Server Share Publish Screen	217
17.5.2 Media Server Logitech® Media Server Screen	218
17.6 iTunes Server Screen	218
17.7 Download Service Screen	219
17.7.1 Adding a Download Task	222
17.7.2 Configuring General Download Settings	223
17.7.3 Configuring the P2P Download Settings	225
17.7.4 Edit IP Filter	227
17.7.5 Selecting Files to Download	228
17.7.6 Displaying the Task Information	229
17.8 Web Publishing Screen	230
17.9 Print Server Screen	231
17.9.1 Print Server Rename	232
17.10 Copy/Sync Button Screen	232
17.11 Technical Reference	234
17.11.1 Sharing Media Files on Your Network	234
17.11.2 Download Service	235
17.11.3 Download Service Notification	236
17.11.4 P2P Download Security	236
17.11.5 Web Publishing Example	238
17.11.6 Web Publishing	240
17.11.7 Printer Sharing	240
17.11.8 Copying Files	241
17.11.9 Synchronizing Files	242
17.12 Syslog Server Screen	243
Packages	246
18.1 Overview	246
18.2 What You Can Do	246
18.3 NFS Screen	247
18.3.1 Add/Edit NFS Share	248
18.3.2 NFS Session	249
18.4 TFTP Server Screen	250
18.5 pyLoad Screen	251
18.6 ownCloud Setup	251
18.7 Memopal	254
18.8 GoogleDriveClient	256
18.8.1 Account Setting Screen	256
18.8.2 Account Setting Add Screen	258
18.8.3 Update Period Screen	261
Auto Upload	262
19.1 Overview	262
19.2 What You Can Do	262
19.3 What You Need to Know	262
19.4 Flickr/YouTube Screen	262
19.4.1 Configuring the Flickr Settings	263
19.4.2 Configuring the YouTube Settings	267
19.5 FTP Uploadr Screen	270
19.5.1 Adding or Editing an FTP Server Entry	271
19.5.2 FTP Uploadr Preferences Screen	272
Dropbox	274
20.1 Overview	274
20.2 Dropbox Screen	274
20.3 How to Use Dropbox with the NAS	276
Using Time Machine with the NAS	278
21.1 Overview	278
21.2 Time Machine Screen	278
21.3 Using Time Machine	278
Users	281
22.1 Overview	281
22.2 What You Can Do	281
22.3 Users Screen	281
22.3.1 User Icons	283
22.3.2 Adding or Editing an Account	283
22.3.3 Usernames	284
22.4 Displaying User Info	285
Groups	287
23.1 Overview	287
23.2 What You Can Do	287
23.3 Groups Screen	287
23.3.1 Adding or Editing a Group	288
23.3.2 Group Names	289
Shares	291
24.1 Overview	291
24.2 What You Can Do	291
24.3 Shares Screen	291
24.3.1 Adding or Editing Share	293
24.3.2 Configuring Advanced Share Access	294
24.3.3 Public and ANONYMOUS Share Access Rights	295
24.4 Recycle Bin Configuration Screen	295
24.4.1 Recycle Bins	295
24.4.2 Configuring Recycle Bins	296
24.5 Share Browser Screen	296
24.5.1 Moving or Copying Files	298
WebDAV	300
25.1 Overview	300
25.2 WebDAV Screen	300
25.3 How to Use NetDrive with the NAS	301
Maintenance Screens	302
26.1 Overview	302
26.2 What You Can Do	302
26.3 Power Screen	302
26.3.1 Editing the Power Control Schedule Screen	304
26.4 Log Screen	306
26.4.1 Report Config Screen	307
26.4.2 Email Setting	308
26.4.3 Report Setting	308
26.4.4 Syslog Server Setting	309
26.5 Configuration Screen	310
26.6 SSL Certification	311
26.6.1 Modifying or Creating a Certificate	312
26.7 Shutdown Screen	313
26.8 Unpair myZyXELcloud Screen	314
26.9 Technical Reference	314
26.9.1 Log Classes	314
26.9.2 Log Severity Levels	315
26.9.3 Log Messages	315
Protect	321
27.1 Overview	321
27.2 What You Can Do	321
27.3 Backup Screens	321
27.3.1 Backup: Step 1	322
27.3.2 Backup: Step 2	323
27.3.3 Backup: Step 3	325
27.3.4 Backup: Step 4	326
27.3.5 Edit Job Screen	327
27.3.6 Edit Job: Step 1	328
27.3.7 Edit Job: Step 2	329
27.3.8 Restore Archive Screen	330
27.3.9 Restore Archive: Step 1	330
27.3.10 Restore Archive: Step 2	331
27.3.11 Restore Archive: Step 3	331
27.4 Restore Screen	332
27.4.1 Restore: Step 1	332
27.4.2 Restore: Step 2	334
27.4.3 Restore: Step 3	334
27.4.4 Restore: Step 4	335
27.5 Configuration File Backup and Restoration	336
Troubleshooting	337
28.1 Troubleshooting Overview	337
28.2 Power, Hardware, Connections, and LEDs	337
28.3 NAS Starter Utility	339
28.4 NAS Login and Access	340
28.4.1 Enabling Scripting of Safe ActiveX Controls	341
28.5 I Cannot Access The NAS	343
28.6 Users Cannot Access the NAS	344
28.7 External USB Drives	345
28.8 Storage	345
28.9 Firmware	346
28.10 File Transfer	346
28.11 Networking	347
28.12 Some Features’ Screens Do Not Display	347
28.13 Media Server Functions	348
28.14 Download Service Functions	350
28.15 Web Publishing	350
28.16 Auto Upload	351
28.17 Package Management	352
28.18 Backups	352
28.19 Google Drive	353
Product Specifications	354
Customer Support	355
Legal Information	361

Match case Limit results 1 per page

Chapter 8 Storage Manager

Cloud Storage User’s Guide

102

GB and 250 GB respectively in one RAID 5 array, then the maximum capacity is 450 GB (3 * 150

GB, the smallest disk size) and the remaining space (300 GB) is unused.

Typical applications for RAID 10 are transaction processing, relational database applications,

enterprise resource planning and other business systems. For write-intensive applications, RAID 1

or RAID 1+0 are probably better choices, as the performance of RAID 5 will begin to substantially

decrease in a write-heavy environment.

Hot-spare

A RAID 1 or RAID 5 array with a hot-spare operates as a three-disk RAID 1 or RAID 5 array with the

fourth disk on standby. The standby disk automatically comes into play if a disk in the array fails.

The advantage of a hot-spare is that if a disk fails, then the array resynchronizes automatically with

the standby disk and operates at healthy array speed after the resynchronization.

Note: You need four hard disks installed to use RAID 10, RAID 5 or RAID 5 with hot-

spare.

RAID and Data Protection

If a hard disk fails and you’re using a RAID 1, RAID 10, or RAID 5 array then your data will still be

available (but at degraded speeds until you replace the hard disk that failed and re-synchronize the

array). However, RAID cannot protect against file corruption, virus attacks, files incorrectly deleted

or modified, or the NAS malfunctioning.