Difference between revisions of "FND-Backups"

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<div style="padding:5px; border:1px solid #000000; background-color:#b3dbce; font-size:300%; font-weight:400; color: #000000; width:100%;">
 
Data Backup Best Practice
 
Data Backup Best Practice
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<div style="padding:5px; margin-top:20px; margin-bottom:10px; background-color:#b3dbce; font-size:30%; font-weight:200; color: #000000; ">
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(Data backup technologies and best practice)
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</div>
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<div class="keywords">
 
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<b>Keywords:</b>&nbsp;
 
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Data backup technologies and best practice
 
 
</div>
 
</div>
  
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{{Smallvspace}}
  
  
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__TOC__
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<div style="padding:5px; border:1px solid #000000; background-color:#b3dbce33; font-size:85%;">
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<div style="font-size:118%;">
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<b>Abstract:</b><br />
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<section begin=abstract />
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...
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{{DEV}}
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<!-- ============================  -->
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<hr>
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<table>
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<tr>
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<td style="padding:10px;">
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<b>Objectives:</b><br />
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This unit will ...
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* ... provide a brief introduction to backup problems and methods to solve them.
  
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</td>
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<td style="padding:10px;">
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<b>Outcomes:</b><br />
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After working through this unit you ...
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* ... have a sensible and effective strategy for backing up your computer;
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* ... have demonstrated that you can recover data.
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</td>
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</tr>
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</table>
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<!-- ============================  -->
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<hr>
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<b>Deliverables:</b><br />
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<section begin=deliverables />
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<ul>
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<li><b>Time management</b>: Before you begin, estimate how long it will take you to complete this unit. Then, record in your course journal: the number of hours you estimated, the number of hours you worked on the unit, and the amount of time that passed between start and completion of this unit.</li>
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<li><b>Journal</b>: Document your progress in your [[FND-Journal|Course Journal]]. Some tasks may ask you to include specific items in your journal. Don't overlook these.</li>
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<li><b>Insights</b>: If you find something particularly noteworthy about this unit, make a note in your [[ABC-Insights|'''insights!''' page]].</li>
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</ul>
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<section end=deliverables />
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<!-- ============================  -->
 
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== Abstract ==
 
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...
 
  
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== This unit ... ==
 
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=== Prerequisites ===
 
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This unit has no prerequisites.
 
  
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=== Objectives ===
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__TOC__
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...
 
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=== Outcomes ===
 
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...
 
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=== Deliverables ===
 
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*<b>Time management</b>: Before you begin, estimate how long it will take you to complete this unit. Then, record in your course journal: the number of hours you estimated, the number of hours you worked on the unit, and the amount of time that passed between start and completion of this unit.
 
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<!-- included from "ABC-unit_components.wtxt", section: "deliverables-journal" -->
 
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*<b>Journal</b>: Document your progress in your [[FND-Journal|course journal]].
 
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<!-- included from "ABC-unit_components.wtxt", section: "deliverables-insights" -->
 
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*<b>Insights</b>: If you find something particularly noteworthy about this unit, make a note in your [[ABC-Insights|insights! page]].
 
  
 
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=== Evaluation ===
 
=== Evaluation ===
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<b>Evaluation: NA</b><br />
 
<b>Evaluation: NA</b><br />
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:This unit is not evaluated for course marks.
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<div style="margin-left: 2rem;">This unit is not evaluated for course marks.</div>
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<div id="BIO">
 
 
== Contents ==
 
== Contents ==
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<!-- included from "../components/FND-Backups.components.wtxt", section: "contents" -->
 
 
When was the last time you made a full backup of your computer's hard-drive? Too long ago? I thought so.
 
When was the last time you made a full backup of your computer's hard-drive? Too long ago? I thought so.
  
 
Backup your hard-drive now.
 
Backup your hard-drive now.
  
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Risk is probability times damage; annualized HD failure rates OTO 3%; SSD ~ one OOM lees; Dataloss: but not a question of if, but when; what is the damage of losing your course notes? your project two days before due dat? your music? your photos? ... enterprise-scale data needs dedicated solution; small scale back up: various options; cloud backup may be bandwidth limited; Apple has things well covered with time-machine / Time capsule; equivalent for other systems ???; off-machine storage in removable disk questionable: everything that is not fully automatic is questionable; differential backup whenever possible; part of hygiene like brushing teeth; NO backup is a backup unless recovery has been tested and shown to work.
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Risk is probability times damage. The annualized probability of hard drive failure is on the order of 3%. This means about two of your classmates in this course will lose all their data this year. It is a bit better for solid state drives (SSD), perhaps only 0.3 failures per year. But what is the damage? All your essays, coursework, all the pictures on your computer, that email from your first love... There is no question you need to have plans in place to protect your data. After all, storage failure is not a question of ''if'', but ''when''.
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== Further reading, links and resources ==
 
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<!-- <div class="reference-box">[http://www.ncbi.nlm.nih.gov]</div> -->
 
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== Notes ==
 
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<references />
 
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== Self-evaluation ==
 
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=== Question 1===
 
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Question ...
 
  
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<div class="toccolours mw-collapsible mw-collapsed" style="width:800px">
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Enterprise-scale data in bioinformatics labs need dedicated solution and that is actually an increasing problem. For your small scale, personal  backup needs you have a variety of  options;
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Answer ...
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* Cloud backup may be bandwidth limited;
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<div class="mw-collapsible-content">
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* Mac OS X has things well covered with their Time machine / Time capsule, I don't know what the best equivalent is for other systems;
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Answer ...
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* off-machine storage in removable disk is a questionable startegy because everything that is not fully automatic is liable to fall victim to complecancy;
  
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</div>
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Whenever possible, make differential backups. And remember: NO backup is a backup unless recovery of data has been tested and shown to work.
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{{task|1=
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* Use this [https://www.google.ca/search?q=backup+options&num=20&tbs=qdr:y '''Google Search'''] for  links to recent articles about backup options.
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* Read a few articles that are relevant for your computer.
  
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* Decide on a backup strategy for your computer.
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* Implement your strategy.
  
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* Create a test file.
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* Backup your computer.
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* Delete your test file.
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* Recreate the file from your last backup.
  
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<b>If in doubt, ask!</b> If anything about this learning unit is not clear to you, do not proceed blindly but ask for clarification. Post your question on the course mailing list: others are likely to have similar problems. Or send an email to your instructor.
 
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:2017-08-05
 
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<b>Version:</b><br />
 
<b>Version:</b><br />
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:1.1
 
<b>Version history:</b><br />
 
<b>Version history:</b><br />
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*1.1 Maintenance
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*1.0 Completed to first live version
 
*0.2 Begin development from legacy material; points only
 
*0.2 Begin development from legacy material; points only
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*0.1 First stub
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*0.1 Material collected from previous tutorial
 
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Latest revision as of 09:27, 25 September 2020

Data Backup Best Practice

(Data backup technologies and best practice)


 


Abstract:

...

Objectives:
This unit will ...

  • ... provide a brief introduction to backup problems and methods to solve them.

Outcomes:
After working through this unit you ...

  • ... have a sensible and effective strategy for backing up your computer;
  • ... have demonstrated that you can recover data.

Deliverables:

  • Time management: Before you begin, estimate how long it will take you to complete this unit. Then, record in your course journal: the number of hours you estimated, the number of hours you worked on the unit, and the amount of time that passed between start and completion of this unit.
  • Journal: Document your progress in your Course Journal. Some tasks may ask you to include specific items in your journal. Don't overlook these.
  • Insights: If you find something particularly noteworthy about this unit, make a note in your insights! page.


 



 



 


Evaluation

Evaluation: NA

This unit is not evaluated for course marks.

Contents

When was the last time you made a full backup of your computer's hard-drive? Too long ago? I thought so.

Backup your hard-drive now.

Risk is probability times damage. The annualized probability of hard drive failure is on the order of 3%. This means about two of your classmates in this course will lose all their data this year. It is a bit better for solid state drives (SSD), perhaps only 0.3 failures per year. But what is the damage? All your essays, coursework, all the pictures on your computer, that email from your first love... There is no question you need to have plans in place to protect your data. After all, storage failure is not a question of if, but when.

Enterprise-scale data in bioinformatics labs need dedicated solution and that is actually an increasing problem. For your small scale, personal backup needs you have a variety of options;

  • Cloud backup may be bandwidth limited;
  • Mac OS X has things well covered with their Time machine / Time capsule, I don't know what the best equivalent is for other systems;
  • off-machine storage in removable disk is a questionable startegy because everything that is not fully automatic is liable to fall victim to complecancy;

Whenever possible, make differential backups. And remember: NO backup is a backup unless recovery of data has been tested and shown to work.

Task:

  • Use this Google Search for links to recent articles about backup options.
  • Read a few articles that are relevant for your computer.
  • Decide on a backup strategy for your computer.
  • Implement your strategy.
  • Create a test file.
  • Backup your computer.
  • Delete your test file.
  • Recreate the file from your last backup.



 


About ...
 
Author:

Boris Steipe <boris.steipe@utoronto.ca>

Created:

2017-08-05

Modified:

2020-09-17

Version:

1.1

Version history:

  • 1.1 Maintenance
  • 1.0 Completed to first live version
  • 0.2 Begin development from legacy material; points only
  • 0.1 Material collected from previous tutorial

CreativeCommonsBy.png This copyrighted material is licensed under a Creative Commons Attribution 4.0 International License. Follow the link to learn more.

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