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1 <refentry id="backup">
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2 <refnamediv>
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3 <refname id="backupname">BACKUP</refname>
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4 <refpurpose>Make a backup copy of a disk</refpurpose>
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5 </refnamediv>
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6
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7 <refsynopsisdiv>
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8 <cmdsynopsis>
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9 <command>BACKUP</command>
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10 <arg choice="opt">
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11 <option>e</option>
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12 </arg>
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13 <arg choice="opt">
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14 <option>s</option>
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15 </arg>
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16 <arg choice="opt">
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17 <option>-v</option>
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18 </arg>
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19 <arg choice="opt">&replstart;devname&replend;
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20 <arg choice="opt">&replstart;devname&replend;</arg></arg>
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21 </cmdsynopsis>
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22 </refsynopsisdiv>
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23
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24 <refsect1><title>Description</title>
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25 <para>
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26 This command is used to physically copy all data from one device to
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27 another. A physical copy is performed sector by sector without
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28 regard to file structures. In almost all cases the devices
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29 specified mun.t have the exact same format (size, density, etc.) and
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30 must not have defective sectors.
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31 </para>
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32 <para>
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33 If both device name are omitted the names "/d0" and "/d1" are
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34 assumed. If the second device name is omitted, a single unit backup
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35 will be performed on the drive specified.
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36 </para>
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37 <para>
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38 The options are:
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39 </para>
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40 <literallayout>
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41 E = Exit if any read error occurs.
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42 S = Print single drive prompt message.
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43 -V = Do not verify.
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44 #nK = more memory makes backup run faster
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45 </literallayout>
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46 </refsect1>
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47 <refsect1><title>Examples</title>
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48 <screen>
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49 backup /D2 /D3
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50
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51 backup -V
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52
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53
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54
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55 OS9: backup
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56
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57 Ready to BACKUP from /D0 to /D1 ?: Y
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58 MYDISK is being scratched
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59 OK ?: Y
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60 Number of sectors copied: $04D0
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61 Verify pass
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62 Number of sectors verified: $04D0
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63 OS9:
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64 </screen>
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65 <para>
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66 Below is an example of a single drive backup. BACKUP will read a
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67 portion of the source disk into memory, you remove the source disk
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68 and place the destination disk into the drive, BACKUP writes on the
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69 destination disk, you remove the destination disk and place the
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70 source disk into the drive. This continues until the entire disk
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71 has been copied. Giving BACKUP as much memory as possible will cause
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72 fewer disk exchanges to be required.
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73 </para>
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74 <para>
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75 For more information see: 1.1.2
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76 </para>
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77 <screen>
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78 OS9:backup /D0 #10k
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79
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80 Ready to BACKUP from /D0 to /D0 ?: Y
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81 Ready DESTINATION, hit a key:
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82 MYDISK is being scratched
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83 OK ?: Y
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84 Ready SOURCE, hit a key:
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85 Ready DESTINATION, hit a key:
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86 Ready SOURCE, hit a key:
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87 Ready DESTINATION, hit a key:
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88
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89 (several repetitions)
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90
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91 Ready DESTINATION, hit a key:
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92 Number of sectors copied: $4D0
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93 Verify pass
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94 Number of sectors verified: $4D0
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95 </screen>
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96 </refsect1>
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97 </refentry>
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98
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