Adaptec 3405 User Guide - Page 90
Selecting the Best RAID Level, Disk drive usage, read performance
 |
UPC - 760884155028
View all Adaptec 3405 manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 90 highlights
Appendix B: Understanding RAID ● 90 Selecting the Best RAID Level Use this table to select the RAID levels that are most appropriate for the logical drives on your storage space, based on the number of available disk drives and your requirements for performance and reliability. RAID Level RAID 0 RAID 1 RAID 1E RAID 10 RAID 5 RAID 5EE RAID 50 RAID 6 RAID 60 Redundancy No Yes Yes Yes Yes Yes Yes Yes Yes Disk Drive Usage 100% 50% 50% 50% 67 - 94% 50 - 88% 67 - 94% 50 - 88% 50 - 88% Read Performance Write Performance Built-in Hot Spare No No No No No Yes No No No Minimum Disk Drives 2 2 3 4 3 4 6 4 8 Disk drive usage, read performance, and write performance depend on the number of drives in the logical drive. In general, the more drives, the better the performance.
-
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
 |
 |
