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| 数据恢复率 |
| 发布日期：2010-08-28 |
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数据恢复率
??????上海电脑数据恢复,数据备份,硬盘维修软件有限公司根据现有的硬盘质量和数据恢复的技术水平，损失数据的恢复的可能性在75%左右，上海电脑数据恢复,数据备份,硬盘维修软件有限公司的数据恢复成功率由5年前的60%，现已增长到70%以上，达到世界水平。
??????以下内容为上海电脑数据恢复,数据备份,硬盘维修软件有限公司2004年受委托的15，328个硬盘进行数据恢复处理的情况，现根据故障症状，OS种类，制造商以及Model等分类分析如下：
按OS类型分类的数据恢复成功率： |
|
|
OS |
总计 |
成功 |
失败 |
恢复率 |
|
DOS |
254 |
184 |
70 |
72.44% |
|
WIN95 |
169 |
120 |
49 |
71.01% |
|
NT4.0(FAT) |
4 |
3 |
1 |
75.00% |
|
NT4.0(NTFS) |
449 |
350 |
99 |
77.95% |
|
Win 3.1 |
9 |
3 |
6 |
33.33% |
|
Win98/ME(FAT) |
11052 |
8422 |
2630 |
76.20% |
|
Win XP(FAT) |
422 |
332 |
90 |
78.67% |
|
Win XP(NTFS) |
176 |
130 |
46 |
73.86% |
|
Win2000(FAT) |
241 |
180 |
61 |
74.69% |
|
Win2000(NTFS) |
1751 |
1256 |
495 |
71.73% |
|
Mac |
272 |
186 |
86 |
68.38% |
|
工控机 |
60 |
39 |
21 |
65.00% |
|
Linux |
196 |
125 |
71 |
63.78% |
|
AIX |
12 |
7 |
5 |
58.33% |
|
BEOS |
1 |
- |
1 |
0.00% |
|
FREE BSD |
5 |
3 |
2 |
60.00% |
|
HP UNIX |
23 |
15 |
8 |
65.22% |
|
IRIX |
9 |
5 |
4 |
55.56% |
|
Netware |
22 |
14 |
8 |
63.64% |
|
Qnix |
1 |
1 |
0 |
100.00% |
|
SCO UNIX |
21 |
12 |
9 |
57.14% |
|
Solaris |
86 |
56 |
30 |
65.12% |
|
TRUE64 |
2 |
0 |
2 |
0.00% |
|
Unixware |
3 |
1 |
2 |
33.33% |
|
VMS |
2 |
1 |
1 |
50.00% |
|
Xenix |
1 |
0 |
1 |
0.00% |
|
ETC unix |
59 |
28 |
31 |
47.46% |
|
OS2 |
5 |
2 |
3 |
40.00% |
|
etc |
21 |
3 |
18 |
14.29% |
|
总计 |
15328 |
11478 |
3850 |
74.88% | |
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Microsoft windows的操作系统的数据恢复成功率为76%，占总数的95%。
按症状分类的数据恢复成功率：
|
|
症状 |
总计 |
成功 |
失败 |
恢复率 |
| 软件 |
Fdisk |
90 |
90 |
0 |
100.00% |
| File error |
64 |
30 |
34 |
46.88% |
| File system |
625 |
545 |
80 |
87.20% |
| Format |
378 |
325 |
53 |
85.98% |
| Format &overwrite |
436 |
289 |
147 |
66.28% |
| Overwrite (其它) |
27 |
17 |
10 |
62.96% |
| Overwrite (Ghost) |
312 |
217 |
95 |
69.55% |
| Overwrite (恢复光盘) |
2013 |
1358 |
655 |
67.46% |
| Virus |
1520 |
1305 |
215 |
85.86% |
| Scandisk |
41 |
27 |
14 |
65.85% |
| RAID, SAN, NAS(软件) |
76 |
55 |
21 |
72.37% |
| 程序 |
64 |
45 |
19 |
70.31% |
| 工控机 |
12 |
8 |
4 |
66.67% |
| delete |
1050 |
899 |
151 |
85.62% |
| 解密 |
20 |
20 |
0 |
100.00% |
| |
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硬件 |
Disk (Not ready) |
1189 |
514 |
675 |
43.23% |
| Disk (Bad sector) |
1208 |
960 |
248 |
79.47% |
| Disk (Scratch) |
580 |
114 |
466 |
19.66% |
| Hard disk fail |
4 |
1 |
3 |
25.00% |
| Head (Bad sector) |
118 |
93 |
25 |
78.81% |
| Head broken |
6 |
5 |
1 |
83.33% |
| Head (Not ready) |
1017 |
852 |
165 |
83.78% |
| Head sticktion |
117 |
109 |
8 |
93.16% |
| Head, Disk (bad sector) |
713 |
562 |
151 |
78.82% |
| PCB burn |
44 |
43 |
1 |
97.73% |
| PCB (Dont start) |
288 |
278 |
10 |
96.53% |
| PCB (Not ready) |
40 |
38 |
2 |
95.00% |
| PCB, Disk (bad sector) |
896 |
699 |
197 |
78.01% |
| PCB, Disk (not ready) |
7 |
2 |
5 |
28.57% |
| PCB, Head |
187 |
145 |
42 |
77.54% |
| PCB, Head, Disk ( bad sector) |
78 |
55 |
23 |
70.51% |
| PCB, Head, Disk ( not ready) |
64 |
28 |
36 |
43.75% |
| Spindle motor (Dont start) |
314 |
204 |
110 |
64.97% |
| Spindle motor (ETC) |
39 |
14 |
25 |
35.90% |
| Spindle motor (RPM error) |
10 |
3 |
7 |
30.00% |
| Notdetect |
1431 |
1410 |
21 |
98.53% |
| 0 cyl |
28 |
3 |
25 |
10.71% |
| RAID,SAN, NAS (硬件) |
56 |
43 |
13 |
76.79% |
| 火灾 |
45 |
17 |
28 |
37.78% |
| 浸水 |
75 |
28 |
47 |
37.33% |
| 摔坏 |
36 |
19 |
17 |
52.78% |
|
其它硬件 |
10 |
9 |
1 |
90.00% |
|
总计 |
15,328 |
11,478 |
3,850 |
74.88% |
汇总统计：
|
|
症状 |
总计 |
成功 |
失败 |
恢复率 |
| 软件 |
6,728 |
5,230 |
1,498 |
77.73% |
| 硬件 |
8,600 |
6,248 |
2,352 |
72.65% |
| 总计 |
15,328 |
11,478 |
3,850 |
74.88% | |
??????数据覆盖（Over write）的情况占数据恢复软件问题的35%，Ghost程序和电脑制造商提供的恢复光盘的使用不当的造成数据丢失的情况比较多，但其数据还是可以恢复的，数据恢复的成功率为68%，但其难度比格式化或数据误删除的数据恢复难度大得多。
??????使用原厂提供的恢复光盘，Ghost前要看清使用说明，操作前是把数据做备份，会比较安全些。
??????比较难恢复的我公司会有技术员做进一步的技术研究。
?按容量大小分类的数据恢复成功率：
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容量(GB) |
总计 |
成功 |
失败 |
恢复率 |
| ~ 5.9GB |
2,460 |
1,562 |
898 |
63.50% |
| 6.0GB ~ 9.9GB |
1,771 |
1,355 |
416 |
76.51% |
| 10GB ~ 19.9GB |
2,849 |
2,232 |
617 |
78.34% |
| 20GB ~ 29.9GB |
3,342 |
2,665 |
677 |
79.74% |
| 30GB ~ 39.9GB |
2,248 |
1,726 |
522 |
76.78% |
| 40GB ~ 59.9GB |
2,276 |
1,667 |
609 |
73.24% |
| 60GB ~ 69.9GB |
193 |
135 |
58 |
69.95% |
| 70GB ~ 79.9GB |
23 |
16 |
7 |
69.57% |
| 80GB ~ 99.9GB |
136 |
99 |
37 |
72.79% |
| 100GB ~ |
30 |
21 |
9 |
70.00% |
| 总计 |
15,328 |
11,478 |
3,850 |
74.88% | |
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| 其它存储设备的数据恢复成功率：? |
|
MODEL |
总计 |
成功 |
失败 |
恢复率 |
| CD |
45 |
25 |
20 |
55.56% |
| Cell disk |
4 |
3 |
1 |
75.00% |
| Click drive |
4 |
4 |
0 |
100.00% |
| DVD |
2 |
1 |
1 |
50.00% |
| Floppy disk |
128 |
91 |
37 |
71.09% |
| Flash memory |
25 |
21 |
4 |
84.00% |
| Jaz |
3 |
2 |
1 |
66.67% |
| Micro drive |
3 |
1 |
2 |
33.33% |
| MOD/ODD |
6 |
3 |
3 |
50.00% |
| PD |
3 |
1 |
2 |
33.33% |
| Syquest |
2 |
1 |
1 |
50.00% |
| Tape |
36 |
13 |
23 |
36.11% |
| Zip |
21 |
17 |
4 |
80.95% |
| 总计 |
282 |
183 |
99 |
64.89% | |
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按文件分区格式分类的数据恢复成功率： |
| OS |
总计 |
成功 |
失败 |
恢复率 |
| Windows -FAT16 |
436 |
310 |
126 |
71.10% |
| Windows -FAT32 |
11,715 |
8,934 |
2,781 |
76.26% |
| Windows -NTFS |
2,376 |
1,736 |
640 |
73.06% |
| Linux(EXT2, EXT3, ReigerFS) |
196 |
125 |
71 |
63.78% |
| Mac(HFS) |
272 |
186 |
86 |
68.38% |
| Netware |
22 |
14 |
8 |
63.64% |
| OS2(HPFS) |
5 |
2 |
3 |
40.00% |
| UNIX(UFS, HFS, XFS, ETC) |
225 |
128 |
97 |
56.89% |
| 工控设备 |
60 |
39 |
21 |
65.00% |
| etc |
21 |
4 |
17 |
19.05% |
| 总计 |
15,328 |
11,478 |
3,850 |
74.88% | | |
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