电脑从IDE硬盘，升级到SSD硬盘，操作系统启动速度，软件运行的速度明显不一样。业务系统从普通的硬盘存储，过度到专业级SAN全光纤存储，甚至对数据进行上几百GB的全内存加速，目的就是为了提高数据读写的速度，提升终端用户的体验。所以，存储系统通常会围绕IOPS指标来选型，场景不一样IOPS的选择也不一样。当然价格也不一样。云存储涉及到的弹性块存储，以及对象存储都有同样的考量指标 ，目标笔者了解到的是，弹性块存储通常在几十MB左右，而结合SSD方案的，则可以到上百MB。云存储为了提高读的能力，通常结合了CDN技术。部分厂家还提供了上传加速，比如七牛。
备份系统，非常关注一次备份和恢复的时间窗口，主要原因在于大部分备份系统是构建在生产主系统之上。通常备份越快，对业务系统的影响越小。业务系统的场景非常复杂，有的是文件大，如视频，图片，系统压缩文件，如多备份不少客户是数据库压缩后的文件进行备份，但单个文件得几百GB ；有的客户是海量的文件，如邮件系统，规模上TB级，数量也在亿级别。如何在最短之内把数据备份完成，通常是一个比较辣手的问题。在这块包括先压缩后备份，先归档再备份，或者直接快照后再备份等各种方案都有。基本上总结起来就包括文件系统级的，IO块级别的，或者快照级别的备份。文件系统级实施简单，价格低，性能受限文件系统IO能力；IO块级别实施复杂，价格贵，通常需要变化存储架构；快照级别可能对存储架构会有调整，适合规模小一点的。传统主流大厂的方案一般都会有以上几个组合。多备份目前聚焦在文件系统对象级，IO块和快照方案作为辅组；结合变扫描边备份，实时发现，智能压缩，自适应CPU硬件加密等方案，尽可能减低处理时间。依赖备份方案，恢复的机制相应也不一样，恢复速度也不一样； 对于纯粹的备份来说，按照备份对象序列差异式的恢复变化的内容，依然是一个可靠与速度平衡的解决思路，且在目标系统可用的情况下，是非常合适的一个方案。如果对于做了异地备份的情况，灾难式的恢复通常会受限于网络通道。
这里的变大，是指存储解决的问题是如何存储超大规模的数据。在我们日常话题中，通常沟通交流的是谁家的硬盘支持1TB，2TB，4TB等，业务系统支持多少用户规模，产生了多少TB数据，数据库存储规模如何等， 衡量一个存储系统设计的是否好，就是在大规模数据下，系统反应良好，用户感觉流畅。而支持这一目标，通常会说存储服务器支持的硬盘块数，单块硬盘的容量，当然IO通道能力也是配套指标。
为了支持足够的大，配上专门的存储交换机，快速把大容量存储阵列映射到不同的服务器上；而数据集中存储在SAN网络中，有的高达几百TB甚至PB级别。即使这样，支持压缩的特性也能派上用场，特别巨大的数据量，对存储的数据默认进行压缩或去重，降低数据占用空间。云存储的出现，更是把容量推向了几乎无限；单个云平台或者准确受限于存储机房区域的容量和区域的数量。由于动态扩容特性，当存储网络不够时，在IDC空间足够的情况下，可以不断增加节点完成存储节点的增加。
通常当数据足够大，数据足够久的时候，数据就需要归档备份起来。而备份就是解决如何保持完整的数据同时，能更好的减低存储开销。所以，一般来说，由于备份会采取在原端去重，或存储端全局去重等技术，保持最小的备份空间。同时包括压缩等方案，也会自动在备份流程中引入。在传统的实施方案中,由于要定期作全量,数据会变得很大,所以一般保留3个月,或半年,或按年做次全量等策略 ； 在快照模型下，由于产生的数据规模比较大，通常云主机对云磁盘采取的快照备份一般也保持几个快照。传统备份产品也有全增量策略，只是结合硬件存储方案，使用和管理成本依然还是比较高； 多备份采取的全增量策略，优势主要集中在混合云索引增量模型，数据保持最小增长规模可靠存储的同时，还可以保持更简单的快速恢复体验，大规模数据备份非常省空间。
43.227.192.1 43.227.193.1 43.227.194.1 43.227.195.1
43.227.192.2 43.227.193.2 43.227.194.2 43.227.195.2
43.227.192.3 43.227.193.3 43.227.194.3 43.227.195.3
43.227.192.4 43.227.193.4 43.227.194.4 43.227.195.4
43.227.192.5 43.227.193.5 43.227.194.5 43.227.195.5
43.227.192.6 43.227.193.6 43.227.194.6 43.227.195.6
43.227.192.7 43.227.193.7 43.227.194.7 43.227.195.7
43.227.192.8 43.227.193.8 43.227.194.8 43.227.195.8
43.227.192.9 43.227.193.9 43.227.194.9 43.227.195.9
43.227.192.10 43.227.193.10 43.227.194.10 43.227.195.10
43.227.192.11 43.227.193.11 43.227.194.11 43.227.195.11
43.227.192.12 43.227.193.12 43.227.194.12 43.227.195.12
43.227.192.13 43.227.193.13 43.227.194.13 43.227.195.13
43.227.192.14 43.227.193.14 43.227.194.14 43.227.195.14
43.227.192.15 43.227.193.15 43.227.194.15 43.227.195.15
43.227.192.16 43.227.193.16 43.227.194.16 43.227.195.16
43.227.192.17 43.227.193.17 43.227.194.17 43.227.195.17
43.227.192.18 43.227.193.18 43.227.194.18 43.227.195.18
43.227.192.19 43.227.193.19 43.227.194.19 43.227.195.19
43.227.192.20 43.227.193.20 43.227.194.20 43.227.195.20
43.227.192.21 43.227.193.21 43.227.194.21 43.227.195.21
43.227.192.22 43.227.193.22 43.227.194.22 43.227.195.22
43.227.192.23 43.227.193.23 43.227.194.23 43.227.195.23
43.227.192.24 43.227.193.24 43.227.194.24 43.227.195.24
43.227.192.25 43.227.193.25 43.227.194.25 43.227.195.25
43.227.192.26 43.227.193.26 43.227.194.26 43.227.195.26
43.227.192.27 43.227.193.27 43.227.194.27 43.227.195.27
43.227.192.28 43.227.193.28 43.227.194.28 43.227.195.28
43.227.192.29 43.227.193.29 43.227.194.29 43.227.195.29
43.227.192.30 43.227.193.30 43.227.194.30 43.227.195.30
43.227.192.31 43.227.193.31 43.227.194.31 43.227.195.31
43.227.192.32 43.227.193.32 43.227.194.32 43.227.195.32
43.227.192.33 43.227.193.33 43.227.194.33 43.227.195.33
43.227.192.34 43.227.193.34 43.227.194.34 43.227.195.34
43.227.192.35 43.227.193.35 43.227.194.35 43.227.195.35
43.227.192.36 43.227.193.36 43.227.194.36 43.227.195.36
43.227.192.37 43.227.193.37 43.227.194.37 43.227.195.37
43.227.192.38 43.227.193.38 43.227.194.38 43.227.195.38
43.227.192.39 43.227.193.39 43.227.194.39 43.227.195.39
43.227.192.40 43.227.193.40 43.227.194.40 43.227.195.40
43.227.192.41 43.227.193.41 43.227.194.41 43.227.195.41
43.227.192.42 43.227.193.42 43.227.194.42 43.227.195.42
43.227.192.43 43.227.193.43 43.227.194.43 43.227.195.43
43.227.192.44 43.227.193.44 43.227.194.44 43.227.195.44
43.227.192.45 43.227.193.45 43.227.194.45 43.227.195.45
43.227.192.46 43.227.193.46 43.227.194.46 43.227.195.46
43.227.192.47 43.227.193.47 43.227.194.47 43.227.195.47
43.227.192.48 43.227.193.48 43.227.194.48 43.227.195.48
43.227.192.49 43.227.193.49 43.227.194.49 43.227.195.49
43.227.192.50 43.227.193.50 43.227.194.50 43.227.195.50
43.227.192.51 43.227.193.51 43.227.194.51 43.227.195.51
43.227.192.52 43.227.193.52 43.227.194.52 43.227.195.52
43.227.192.53 43.227.193.53 43.227.194.53 43.227.195.53
43.227.192.54 43.227.193.54 43.227.194.54 43.227.195.54
43.227.192.55 43.227.193.55 43.227.194.55 43.227.195.55
43.227.192.56 43.227.193.56 43.227.194.56 43.227.195.56
43.227.192.57 43.227.193.57 43.227.194.57 43.227.195.57
43.227.192.58 43.227.193.58 43.227.194.58 43.227.195.58
43.227.192.59 43.227.193.59 43.227.194.59 43.227.195.59
43.227.192.60 43.227.193.60 43.227.194.60 43.227.195.60
43.227.192.61 43.227.193.61 43.227.194.61 43.227.195.61
43.227.192.62 43.227.193.62 43.227.194.62 43.227.195.62
43.227.192.63 43.227.193.63 43.227.194.63 43.227.195.63
43.227.192.64 43.227.193.64 43.227.194.64 43.227.195.64
43.227.192.65 43.227.193.65 43.227.194.65 43.227.195.65
43.227.192.66 43.227.193.66 43.227.194.66 43.227.195.66
43.227.192.67 43.227.193.67 43.227.194.67 43.227.195.67
43.227.192.68 43.227.193.68 43.227.194.68 43.227.195.68
43.227.192.69 43.227.193.69 43.227.194.69 43.227.195.69
43.227.192.70 43.227.193.70 43.227.194.70 43.227.195.70
43.227.192.71 43.227.193.71 43.227.194.71 43.227.195.71
43.227.192.72 43.227.193.72 43.227.194.72 43.227.195.72
43.227.192.73 43.227.193.73 43.227.194.73 43.227.195.73
43.227.192.74 43.227.193.74 43.227.194.74 43.227.195.74
43.227.192.75 43.227.193.75 43.227.194.75 43.227.195.75
43.227.192.76 43.227.193.76 43.227.194.76 43.227.195.76
43.227.192.77 43.227.193.77 43.227.194.77 43.227.195.77
43.227.192.78 43.227.193.78 43.227.194.78 43.227.195.78
43.227.192.79 43.227.193.79 43.227.194.79 43.227.195.79
43.227.192.80 43.227.193.80 43.227.194.80 43.227.195.80
43.227.192.81 43.227.193.81 43.227.194.81 43.227.195.81
43.227.192.82 43.227.193.82 43.227.194.82 43.227.195.82
43.227.192.83 43.227.193.83 43.227.194.83 43.227.195.83
43.227.192.84 43.227.193.84 43.227.194.84 43.227.195.84
43.227.192.85 43.227.193.85 43.227.194.85 43.227.195.85
43.227.192.86 43.227.193.86 43.227.194.86 43.227.195.86
43.227.192.87 43.227.193.87 43.227.194.87 43.227.195.87
43.227.192.88 43.227.193.88 43.227.194.88 43.227.195.88
43.227.192.89 43.227.193.89 43.227.194.89 43.227.195.89
43.227.192.90 43.227.193.90 43.227.194.90 43.227.195.90
43.227.192.91 43.227.193.91 43.227.194.91 43.227.195.91
43.227.192.92 43.227.193.92 43.227.194.92 43.227.195.92
43.227.192.93 43.227.193.93 43.227.194.93 43.227.195.93
43.227.192.94 43.227.193.94 43.227.194.94 43.227.195.94
43.227.192.95 43.227.193.95 43.227.194.95 43.227.195.95
43.227.192.96 43.227.193.96 43.227.194.96 43.227.195.96
43.227.192.97 43.227.193.97 43.227.194.97 43.227.195.97
43.227.192.98 43.227.193.98 43.227.194.98 43.227.195.98
43.227.192.99 43.227.193.99 43.227.194.99 43.227.195.99
43.227.192.100 43.227.193.100 43.227.194.100 43.227.195.100
43.227.192.101 43.227.193.101 43.227.194.101 43.227.195.101
43.227.192.102 43.227.193.102 43.227.194.102 43.227.195.102
43.227.192.103 43.227.193.103 43.227.194.103 43.227.195.103
43.227.192.104 43.227.193.104 43.227.194.104 43.227.195.104
43.227.192.105 43.227.193.105 43.227.194.105 43.227.195.105
43.227.192.106 43.227.193.106 43.227.194.106 43.227.195.106
43.227.192.107 43.227.193.107 43.227.194.107 43.227.195.107
43.227.192.108 43.227.193.108 43.227.194.108 43.227.195.108
43.227.192.109 43.227.193.109 43.227.194.109 43.227.195.109
43.227.192.110 43.227.193.110 43.227.194.110 43.227.195.110
43.227.192.111 43.227.193.111 43.227.194.111 43.227.195.111
43.227.192.112 43.227.193.112 43.227.194.112 43.227.195.112
43.227.192.113 43.227.193.113 43.227.194.113 43.227.195.113
43.227.192.114 43.227.193.114 43.227.194.114 43.227.195.114
43.227.192.115 43.227.193.115 43.227.194.115 43.227.195.115
43.227.192.116 43.227.193.116 43.227.194.116 43.227.195.116
43.227.192.117 43.227.193.117 43.227.194.117 43.227.195.117
43.227.192.118 43.227.193.118 43.227.194.118 43.227.195.118
43.227.192.119 43.227.193.119 43.227.194.119 43.227.195.119
43.227.192.120 43.227.193.120 43.227.194.120 43.227.195.120
43.227.192.121 43.227.193.121 43.227.194.121 43.227.195.121
43.227.192.122 43.227.193.122 43.227.194.122 43.227.195.122
43.227.192.123 43.227.193.123 43.227.194.123 43.227.195.123
43.227.192.124 43.227.193.124 43.227.194.124 43.227.195.124
43.227.192.125 43.227.193.125 43.227.194.125 43.227.195.125
43.227.192.126 43.227.193.126 43.227.194.126 43.227.195.126
43.227.192.127 43.227.193.127 43.227.194.127 43.227.195.127
43.227.192.128 43.227.193.128 43.227.194.128 43.227.195.128
43.227.192.129 43.227.193.129 43.227.194.129 43.227.195.129
43.227.192.130 43.227.193.130 43.227.194.130 43.227.195.130
43.227.192.131 43.227.193.131 43.227.194.131 43.227.195.131
43.227.192.132 43.227.193.132 43.227.194.132 43.227.195.132
43.227.192.133 43.227.193.133 43.227.194.133 43.227.195.133
43.227.192.134 43.227.193.134 43.227.194.134 43.227.195.134
43.227.192.135 43.227.193.135 43.227.194.135 43.227.195.135
43.227.192.136 43.227.193.136 43.227.194.136 43.227.195.136
43.227.192.137 43.227.193.137 43.227.194.137 43.227.195.137
43.227.192.138 43.227.193.138 43.227.194.138 43.227.195.138
43.227.192.139 43.227.193.139 43.227.194.139 43.227.195.139
43.227.192.140 43.227.193.140 43.227.194.140 43.227.195.140
43.227.192.141 43.227.193.141 43.227.194.141 43.227.195.141
43.227.192.142 43.227.193.142 43.227.194.142 43.227.195.142
43.227.192.143 43.227.193.143 43.227.194.143 43.227.195.143
43.227.192.144 43.227.193.144 43.227.194.144 43.227.195.144
43.227.192.145 43.227.193.145 43.227.194.145 43.227.195.145
43.227.192.146 43.227.193.146 43.227.194.146 43.227.195.146
43.227.192.147 43.227.193.147 43.227.194.147 43.227.195.147
43.227.192.148 43.227.193.148 43.227.194.148 43.227.195.148
43.227.192.149 43.227.193.149 43.227.194.149 43.227.195.149
43.227.192.150 43.227.193.150 43.227.194.150 43.227.195.150
43.227.192.151 43.227.193.151 43.227.194.151 43.227.195.151
43.227.192.152 43.227.193.152 43.227.194.152 43.227.195.152
43.227.192.153 43.227.193.153 43.227.194.153 43.227.195.153
43.227.192.154 43.227.193.154 43.227.194.154 43.227.195.154
43.227.192.155 43.227.193.155 43.227.194.155 43.227.195.155
43.227.192.156 43.227.193.156 43.227.194.156 43.227.195.156
43.227.192.157 43.227.193.157 43.227.194.157 43.227.195.157
43.227.192.158 43.227.193.158 43.227.194.158 43.227.195.158
43.227.192.159 43.227.193.159 43.227.194.159 43.227.195.159
43.227.192.160 43.227.193.160 43.227.194.160 43.227.195.160
43.227.192.161 43.227.193.161 43.227.194.161 43.227.195.161
43.227.192.162 43.227.193.162 43.227.194.162 43.227.195.162
43.227.192.163 43.227.193.163 43.227.194.163 43.227.195.163
43.227.192.164 43.227.193.164 43.227.194.164 43.227.195.164
43.227.192.165 43.227.193.165 43.227.194.165 43.227.195.165
43.227.192.166 43.227.193.166 43.227.194.166 43.227.195.166
43.227.192.167 43.227.193.167 43.227.194.167 43.227.195.167
43.227.192.168 43.227.193.168 43.227.194.168 43.227.195.168
43.227.192.169 43.227.193.169 43.227.194.169 43.227.195.169
43.227.192.170 43.227.193.170 43.227.194.170 43.227.195.170
43.227.192.171 43.227.193.171 43.227.194.171 43.227.195.171
43.227.192.172 43.227.193.172 43.227.194.172 43.227.195.172
43.227.192.173 43.227.193.173 43.227.194.173 43.227.195.173
43.227.192.174 43.227.193.174 43.227.194.174 43.227.195.174
43.227.192.175 43.227.193.175 43.227.194.175 43.227.195.175
43.227.192.176 43.227.193.176 43.227.194.176 43.227.195.176
43.227.192.177 43.227.193.177 43.227.194.177 43.227.195.177
43.227.192.178 43.227.193.178 43.227.194.178 43.227.195.178
43.227.192.179 43.227.193.179 43.227.194.179 43.227.195.179
43.227.192.180 43.227.193.180 43.227.194.180 43.227.195.180
43.227.192.181 43.227.193.181 43.227.194.181 43.227.195.181
43.227.192.182 43.227.193.182 43.227.194.182 43.227.195.182
43.227.192.183 43.227.193.183 43.227.194.183 43.227.195.183
43.227.192.184 43.227.193.184 43.227.194.184 43.227.195.184
43.227.192.185 43.227.193.185 43.227.194.185 43.227.195.185
43.227.192.186 43.227.193.186 43.227.194.186 43.227.195.186
43.227.192.187 43.227.193.187 43.227.194.187 43.227.195.187
43.227.192.188 43.227.193.188 43.227.194.188 43.227.195.188
43.227.192.189 43.227.193.189 43.227.194.189 43.227.195.189
43.227.192.190 43.227.193.190 43.227.194.190 43.227.195.190
43.227.192.191 43.227.193.191 43.227.194.191 43.227.195.191
43.227.192.192 43.227.193.192 43.227.194.192 43.227.195.192
43.227.192.193 43.227.193.193 43.227.194.193 43.227.195.193
43.227.192.194 43.227.193.194 43.227.194.194 43.227.195.194
43.227.192.195 43.227.193.195 43.227.194.195 43.227.195.195
43.227.192.196 43.227.193.196 43.227.194.196 43.227.195.196
43.227.192.197 43.227.193.197 43.227.194.197 43.227.195.197
43.227.192.198 43.227.193.198 43.227.194.198 43.227.195.198
43.227.192.199 43.227.193.199 43.227.194.199 43.227.195.199
43.227.192.200 43.227.193.200 43.227.194.200 43.227.195.200
43.227.192.201 43.227.193.201 43.227.194.201 43.227.195.201
43.227.192.202 43.227.193.202 43.227.194.202 43.227.195.202
43.227.192.203 43.227.193.203 43.227.194.203 43.227.195.203
43.227.192.204 43.227.193.204 43.227.194.204 43.227.195.204
43.227.192.205 43.227.193.205 43.227.194.205 43.227.195.205
43.227.192.206 43.227.193.206 43.227.194.206 43.227.195.206
43.227.192.207 43.227.193.207 43.227.194.207 43.227.195.207
43.227.192.208 43.227.193.208 43.227.194.208 43.227.195.208
43.227.192.209 43.227.193.209 43.227.194.209 43.227.195.209
43.227.192.210 43.227.193.210 43.227.194.210 43.227.195.210
43.227.192.211 43.227.193.211 43.227.194.211 43.227.195.211
43.227.192.212 43.227.193.212 43.227.194.212 43.227.195.212
43.227.192.213 43.227.193.213 43.227.194.213 43.227.195.213
43.227.192.214 43.227.193.214 43.227.194.214 43.227.195.214
43.227.192.215 43.227.193.215 43.227.194.215 43.227.195.215
43.227.192.216 43.227.193.216 43.227.194.216 43.227.195.216
43.227.192.217 43.227.193.217 43.227.194.217 43.227.195.217
43.227.192.218 43.227.193.218 43.227.194.218 43.227.195.218
43.227.192.219 43.227.193.219 43.227.194.219 43.227.195.219
43.227.192.220 43.227.193.220 43.227.194.220 43.227.195.220
43.227.192.221 43.227.193.221 43.227.194.221 43.227.195.221
43.227.192.222 43.227.193.222 43.227.194.222 43.227.195.222
43.227.192.223 43.227.193.223 43.227.194.223 43.227.195.223
43.227.192.224 43.227.193.224 43.227.194.224 43.227.195.224
43.227.192.225 43.227.193.225 43.227.194.225 43.227.195.225
43.227.192.226 43.227.193.226 43.227.194.226 43.227.195.226
43.227.192.227 43.227.193.227 43.227.194.227 43.227.195.227
43.227.192.228 43.227.193.228 43.227.194.228 43.227.195.228
43.227.192.229 43.227.193.229 43.227.194.229 43.227.195.229
43.227.192.230 43.227.193.230 43.227.194.230 43.227.195.230
43.227.192.231 43.227.193.231 43.227.194.231 43.227.195.231
43.227.192.232 43.227.193.232 43.227.194.232 43.227.195.232
43.227.192.233 43.227.193.233 43.227.194.233 43.227.195.233
43.227.192.234 43.227.193.234 43.227.194.234 43.227.195.234
43.227.192.235 43.227.193.235 43.227.194.235 43.227.195.235
43.227.192.236 43.227.193.236 43.227.194.236 43.227.195.236
43.227.192.237 43.227.193.237 43.227.194.237 43.227.195.237
43.227.192.238 43.227.193.238 43.227.194.238 43.227.195.238
43.227.192.239 43.227.193.239 43.227.194.239 43.227.195.239
43.227.192.240 43.227.193.240 43.227.194.240 43.227.195.240
43.227.192.241 43.227.193.241 43.227.194.241 43.227.195.241
43.227.192.242 43.227.193.242 43.227.194.242 43.227.195.242
43.227.192.243 43.227.193.243 43.227.194.243 43.227.195.243
43.227.192.244 43.227.193.244 43.227.194.244 43.227.195.244
43.227.192.245 43.227.193.245 43.227.194.245 43.227.195.245
43.227.192.246 43.227.193.246 43.227.194.246 43.227.195.246
43.227.192.247 43.227.193.247 43.227.194.247 43.227.195.247
43.227.192.248 43.227.193.248 43.227.194.248 43.227.195.248
43.227.192.249 43.227.193.249 43.227.194.249 43.227.195.249
43.227.192.250 43.227.193.250 43.227.194.250 43.227.195.250
43.227.192.251 43.227.193.251 43.227.194.251 43.227.195.251
43.227.192.252 43.227.193.252 43.227.194.252 43.227.195.252
43.227.192.253 43.227.193.253 43.227.194.253 43.227.195.253
43.227.192.254 43.227.193.254 43.227.194.254 43.227.195.254
43.227.192.255 43.227.193.255 43.227.194.255 43.227.195.255
1来源：泰州高防服务器托管 日期：2015-06-04 15:11:32