1 U3A How To Backup CD/DVD, Memory Stick, Memory Card, 2nd hard drive, auto
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How To Backup
CD/DVD, Memory Stick, Memory Card, 2nd hard drive,
auto
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Backup:
Make a copy of Data, Software, or even an entire Disk, on
another medium, possibly in a remote location or on an
Internet Server
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Commercial Practice:
“RAID” systems----put everything on more than one disk, all the time.
Daily (nightly) System Image to remote site---copy the WHOLE computer system, software and data, exactly as-is.
Regular “Incremental Backups” throughout the day---keep “updating” the backup.
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IF you feel it to be necessary, you can use some of this
software to make Disk Images, or more selective Backups, and
schedule them to run automatically.
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Where to?
(and how big is it?)
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Internet Servers----very slow upload.
CD/DVD----not much capacity.
Memory Stick/Card----very expensive per Gb.
Additional/External Hard Disk----£50 for 1000Gb?
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Does the average Computer Club member
need to do all this?
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“My Documents”
Email and Contacts (Address Book)
Cookies and Favourites
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A simple backup program using
“XCOPY”.
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Using the “xcopy” command for an “incremental backup”.
xcopy "c:\Documents and Settings\user\My Documents\*" "archive\user\*" /D/I/C/E/Y >> backup.log
The first run copies everything. Subsequent runs will only copy files that have changed, or been added, since last time. NB: it wont delete files that have been removed since the last run. It makes a “log file” of what it has done.
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/D Copies only those files whose source time is newer than the destination time.
/I If destination does not exist and copying more than one file, assumes that destination must be a directory.
/C Continues copying even if errors occur.
/E Copies directories and subdirectories, including empty ones.
/Y Suppresses prompting to confirm that you want to overwrite an existing destination file.
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Backup.bat
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Backup.bat copies the “current user’s” “My Documents” folder and sub-folders onto the drive you run backup.bat from. Next time it is run, it will only “update” the backup, not re-copy everything.
Backup.bat makes a folder “Archive” and then a sub-folder named for the “current user”, so a different user’s backup will go into a different sub-folder.
You must make sure that everything you want to keep is in “My Documents” and that the backup drive is big enough to hold the copy.
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if not exist archive\nul md archive
if exist archive\backup_log.log del archive\backup_log.log
if exist "%USERPROFILE%\my documents\*" xcopy "%USERPROFILE%\my documents\*" "archive\%USERNAME%\*" /D/I/C/E/Y >> archive\backup_log.log
if exist "%USERPROFILE%\documents\*" xcopy "%USERPROFILE%\documents\*" "archive\%USERNAME%\*" /D/I/C/E/Y >> archive\backup_log.log
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