Western Digital WDA4NC40000N User Guide - Page 198
RAID 0, RAID 1, RAID 5, RAID 10, Share, Spanned, Streaming Media, Striping
UPC - 718037733654
View all Western Digital WDA4NC40000N manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 198 highlights
WD SHARESPACE USER MANUAL RAID 0: RAID protocol in which data is striped across multiple hard drives, enabling the accelerated reading and recording of data by combining the work of two or more drives to increase performance. See also Striping. RAID 1: RAID protocol in which two copies of the data are instantaneously recorded: each on separate hard drives. RAID 1 ensures the protection of users' data because in the event that one of the hard drives fails, the other hard drive(s) will continue to read and write data until the faulty hard drive is replaced and rebuilt to once again safely mirror the data. See also Mirroring. RAID 5: For systems with three or more drives, RAID 5 offers fast performance by striping data across all drives. It protects data by dedicating a quarter of each drive to fault tolerance, leaving three quarters of the system capacity available for data storage. RAID 10: RAID protocol that requires a minimum of four drives to implement. Adds redundancy and fault tolerance, providing data striping on top of disk mirroring. RAM: Random Access Memory. Memory that allows any storage location to be accessed randomly, as opposed to sequential access devices such as tape drives. ROM: Read-Only Memory. An integrated circuit memory chip containing programs and data that the computer or host can read but cannot modify. A computer can read instructions from ROM but cannot store data in ROM. Share: A folder that can be used to organize and store files on your WD ShareSpace. Shares can be shared with everyone (public) or with selected users on your network (private). SMB: Server Message Block. File-sharing protocol for Windows platform that allows users to access shares through My Network Places. Mac OS X or later also supports the CIFS protocol. See also Protocol. SMTP: Simple Mail Transfer Protocol. Standard for transferring email across the Internet. See also Protocol. Spanned: Combines drives in a linear fashion to create one large logical volume. A spanned drive is like a single, bigger drive, in that files written to the volume earlier go to the "beginning" of the volume, on the first physical drive. If one of the drives fails, all data is lost. SSH: Secure Shell. A network protocol that uses encryption and authentication keys to enable two devices on the network to exchange data securely. See also Protocol. SSL: Secure Socket Layer. A protocol that provides authentication and encryption services between a web server and a web browser. See also Protocol. Streaming Media: Media such as audio, video, and photos that are constantly received while being delivered by a streaming provider. Striping: The spread of data over multiple hard drives to improve performance. See also RAID 0. GLOSSARY - 193
-
1
-
2
-
3
-
4
-
5
-
6
-
7
-
8
-
9
-
10
-
11
-
12
-
13
-
14
-
15
-
16
-
17
-
18
-
19
-
20
-
21
-
22
-
23
-
24
-
25
-
26
-
27
-
28
-
29
-
30
-
31
-
32
-
33
-
34
-
35
-
36
-
37
-
38
-
39
-
40
-
41
-
42
-
43
-
44
-
45
-
46
-
47
-
48
-
49
-
50
-
51
-
52
-
53
-
54
-
55
-
56
-
57
-
58
-
59
-
60
-
61
-
62
-
63
-
64
-
65
-
66
-
67
-
68
-
69
-
70
-
71
-
72
-
73
-
74
-
75
-
76
-
77
-
78
-
79
-
80
-
81
-
82
-
83
-
84
-
85
-
86
-
87
-
88
-
89
-
90
-
91
-
92
-
93
-
94
-
95
-
96
-
97
-
98
-
99
-
100
-
101
-
102
-
103
-
104
-
105
-
106
-
107
-
108
-
109
-
110
-
111
-
112
-
113
-
114
-
115
-
116
-
117
-
118
-
119
-
120
-
121
-
122
-
123
-
124
-
125
-
126
-
127
-
128
-
129
-
130
-
131
-
132
-
133
-
134
-
135
-
136
-
137
-
138
-
139
-
140
-
141
-
142
-
143
-
144
-
145
-
146
-
147
-
148
-
149
-
150
-
151
-
152
-
153
-
154
-
155
-
156
-
157
-
158
-
159
-
160
-
161
-
162
-
163
-
164
-
165
-
166
-
167
-
168
-
169
-
170
-
171
-
172
-
173
-
174
-
175
-
176
-
177
-
178
-
179
-
180
-
181
-
182
-
183
-
184
-
185
-
186
-
187
-
188
-
189
-
190
-
191
-
192
-
193
-
194
-
195
-
196
-
197
-
198
-
199
-
200
-
201
-
202
-
203
-
204
-
205
-
206
-
207