Back Up 101
•
0 likes•259 views
This document provides an introduction to simpler methods for storing and restoring data, including using floppy disks, CDs, flash drives, DVDs, tape backup, online storage, and in-house backup methods. It discusses identifying what data to backup, where it is located, and how often to perform backups. Methods covered include secure copy, rsync over SSH, and setting up cron jobs to automate backups. The document also introduces BackupPC as an open source backup solution.
Recommended
More Related Content
Similar to Back Up 101
Similar to Back Up 101 (20)
Recently uploaded
Recently uploaded (20)
Back Up 101
- 1. Storing & Restoring Data General Introduction To Simpler Methods Gowtham sgowtham@mtu.edu 2008.09.04 Tuesday, February 24, 2009
- 2. Care? Shoul why Be Paranoid? dI Worry? What’s the worst that can happen ? Tuesday, February 24, 2009
- 3. Hard Drive WILL Shortage of Time NOT live Schedule YE forever Conflicts Loss of Power Time Wall Outage because CPU Stealth Hardware Failure S Virus Attacks ACCIDENTS Hackers friday 5 pm syndrome Natural Disasters Tuesday, February 24, 2009
- 4. Backup Solutions Floppy, CD, Flash Drives, DVD Economical & Portable Quality HDs Easy to loose / corrupt ~$0.20 / GB Tape Backup Seagate Not all of us can afford Western Digital Maxtor Online Storage Costs (a lot of) $$ Enclosure: ~$20 Data Peepers External Drives with In-House Methods Push Button Backup Solutions Takes some effort FREE (almost) Tuesday, February 24, 2009
- 5. WHAT, WHERE and WHEN FAILING TO PLAN IS PLANNING TO FAIL Tuesday, February 24, 2009
- 6. WHAT, WHERE and WHEN bin /home/$USER doc Usually contains most of user’s data lib src /usr/local and /opt tmp Locally installed/compiled programs research .files /var .folders Websites Mail Databases MySQL PostgreSQL Tuesday, February 24, 2009
- 7. WHAT, WHERE and WHEN A Reliable Destination Not too old of a machine Enough free space Preferably same version of OS How many copies should one keep? Tuesday, February 24, 2009
- 8. How Secure Copy mkdir -p /home/$USER/research/rama cd /home/$USER/research/rama scp -r rama.phy.mtu.edu:/home/$USER/research/ . What if the source grows by few GB every day & the network is slower? Tuesday, February 24, 2009
- 9. How rsync over ssh rsync -ave ssh -H rama:/home/$USER/research/ /home/$USER/research/rama/ Trailing slashes are crucial! Can SSH not prompt for password? Tuesday, February 24, 2009
- 10. SSH With No Password ssh-keygen -t rsa -b 1024 scp .ssh/id_rsa.pub rama:id_rsa_ganesh.pub ssh $USER@rama cat id_ssh_ganesh.pub >> .ssh/authorized_keys SOURCE will NOT ask for password when connecting from CLIENT ssh, scp, rsync+ssh Tuesday, February 24, 2009
- 11. Backing Up At Odd Hours # cron job listing - save this file as # /home/$USER/bin/cron_jobs # # Submit to cron via the command # crontab /home/$USER/bin/cron_jobs # 09 02 * * * /home/$USER/bin/rama_backup.sh > /dev/null Command Day of the Week (00-06; 0 = Sunday) Month (01-12) Day of the Month (01-31) Hour (0-23) Minute (0-59) Tuesday, February 24, 2009
- 12. BackupPC Open source project Good Documentation and Support Very elegant and effective Clients machines can have any operating system Works equally well for desktops and laptops Sends emails when a client is not backed up Requires a working installation of Apache, PHP, PERL Tuesday, February 24, 2009
- 13. BackupPC Open Source Apache, PERL GUI (TUI) Flexible Scheduling Add / remove clients Linux, Mac, Win Email Alerts Effective Disk Usage http://sgowtham.net/blog/archives/ Initiate backups Search for ‘BackupPC’ Restore files/folders Steps to configure Red Hat Enterprise Linux as server Tuesday, February 24, 2009
- 14. Acknowledgments Dr. Ravi Pandey Center for Experimental Computation @ MTU Tim Obermann Linux Users’ Group @ MTU Tuesday, February 24, 2009