Seagate Maxtor BlackArmor Windows only Información técnica Pagina 126
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126 Copyright (c) 2000-2009 Acronis. All rights reserved.
Copyright (c) 2009 Seagate Technology LLC. All Rights Reserved.
C.2 Information wiping methods used by Seagate BlackArmor
Backup
The table below briefly describes information wiping methods used by Seagate.
Each description features the number of hard disk sector passes along with the
number(s) written to each sector byte.
The description of built-in information wiping methods
No. Algorithm (writing
method)
Passes Record
1. United States
Department of
Defense 5220.22-
M
4 1
st
pass – randomly selected symbols to
each byte of each sector, 2 –
complementary to written during the 1
st
pass; 3 – random symbols again; 4 –
writing verification.
2. United States:
NAVSO P-5239-26
(RLL)
4 1
st
pass – 0x01 to all sectors, 2 –
0x27FFFFFF, 3 – random symbol
sequences, 4 – verification.
3. United States:
NAVSO P-5239-26
(MFM)
4 1
st
pass – 0x01 to all sectors, 2 –
0x7FFFFFFF, 3 – random symbol
sequences, 4 – verification.
4. German: VSITR 7 1
st
– 6
th
– alternate sequences of: 0x00
and 0xFF; 7
th
– 0xAA; i.e. 0x00, 0xFF,
0x00, 0xFF, 0x00, 0xFF, 0xAA.
5. Russian: GOST
P50739-95
1 Logical zeros (0x00 numbers) to each
byte of each sector for 6
th
to 4
th
security
level systems.
Randomly selected symbols (numbers)
to each byte of each sector for 3
rd
to 1
st
security level systems.
6. Peter Gutmann’s
method
35 Peter Gutmann’s method is very
sophisticated. It’s based on his theory of
hard disk information wiping (see
http://www.cs.auckland.ac.nz/~pgut001
/
pubs/secure_del.html).
7. Bruce Schneier’s
method
7 Bruce Schneier offers a seven-pass
overwriting method in his Applied
Cryptography book. 1
st
pass – 0xFF, 2
nd
pass – 0x00, and then five times with a
cryptographically secure pseudo-random
sequence.
8. Fast 1 Logical zeros (0x00 numbers) to all
sectors to wipe.
- Table of Contents 3
- Chapter 1. Introduction 7
- 1.4 License policy 9
- 1.5 Technical support 10
- Chapter 12
- 10. Creating bootable media 12
- REINSTALLMODE=vomus 13
- Chapter 12 14
- 3.5 Try&Decide 16
- 3.7 Support for Zip format 16
- Seagate BlackArmor Backup 17
- BlackArmor Backup 18
- 4.2 Program workspace 20
- Consolidating backups 22
- 11.3 Viewing Tasks and Logs 23
- 4.1 BlackArmor One 24
- Click Protection 24
- 5.2 Performing backup 25
- 5.2.3 Scheduling 28
- 5.2.4 Backup method 29
- 5.3.2 Source 31
- 5.3 Fine-tuning your backups 32
- 5.2.8 Providing a comment 33
- 5.3.1 Archive protection 33
- 5.3.3 Pre/post commands 34
- 5.3.4 Compression level 34
- 5.3.5 Backup performance 35
- 5.3.6 Archive splitting 36
- 5.3.8 Error handling 36
- 5.3.9 Additional settings 37
- My???.exe 38
- 6.3.2 Archive selection 44
- 6.4 Setting restore options 48
- 6.4.3 Restoration priority 50
- 6.4.5 Additional settings 50
- Chapter 7. Try&Decide 51
- 7.1 Using Try&Decide 54
- Chapter 8. Scheduling tasks 57
- Secure Zone 62
- 11.2.1 Email notification 72
- 11.4 Consolidating backups 76
- 12.1 Searching 81
- 12.3 Mounting an image 90
- 12.4 Unmounting an image 92
- 13.1 General information 94
- 13.2 Security 95
- 13.3 Executing transfers 95
- 13.3.7 Cloning summary 100
- 14.1 Selecting a hard disk 101
- 14.3 Disk add summary 102
- 15.1 Using File Shredder 104
- Appendix C. Hard Disk Wiping 105
- 15.3 Creating 106
- 15.4 System Clean-up 109
- A.2 File systems 114
- A.1 Hard disk partitions 114
- B.2 BIOS 119
- Heads (Hd) 64 121
- Sectors (Sec) 63 121
- Mode Auto 121
- CHS 1707 MB 121
- Chapter 14 122
- Adding a new hard disk 122
- • pci=nobios 128
- • pci=biosirq 128
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