Managing Digital Content over Time: Module 1:...
Transcript of Managing Digital Content over Time: Module 1:...
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Digital Preservation Outreach and Education (DPOE)
Managing Digital Content over Time:
Protect Module
CUWL
June 3, 2016
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Modules
DPOE Baseline Modules: Intro, version 2.0, Nov 2011
Select - what portion of that content will be preserved?
Identify - what digital content do you have?
Store - what issues are there for long term storage?
Protect - what steps are needed to protect your digital content?
Manage - what provisions are needed for long-term management?
Provide - what considerations are there for long-term access?
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identify
select
store
protect
manage
provide
DPOE Baseline Modules
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• Understand the various types of
threats facing digital materials
and how to address them.
• Learn about the types of policies
that can assist with protecting
your content.
Session Goals
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Identify and evaluate risks
Protection of content
requires you to identify
and evaluate risks:
– related to
management of the
content
– related to emergencies
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• Hardware/equipment
• Digital files
• Content of the digital files
– Including sensitive information
• Your investment!
• Your reputation!
What are you protecting?
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Dangers! to digital objects
Change and loss – accidental
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Dangers! to digital objects
Change and loss – intentional
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Dangers! to digital objects
Inappropriate access – e.g., confidential data
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Dangers! to digital objects
Obsolescence – as technology evolves
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Dangers! to digital objects
https://archive.org/details/historicalsoftware
Obsolescence – as software evolves
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Dangers! to digital objects
Non-compliance – standards and requirements
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Dangers! to digital objects
Disasters – Natural Disasters
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Dangers! to digital objects
Disasters – Physical Disasters
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Readiness
Proper planning should
allow you to:
• Prevent
• Predict
• Detect
• Respond
• Repair
The American Fireman Facing the Enemy
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How to achieve readiness?
Ulti atel , a orga izatio ould use a suite of plans to properly prepare
response, recovery, and continuity
activities for disruptions affecting the
orga izatio s IT systems, business
processes, and the facility.
Source: NIST Contingency Planning Guide for Information Technology Systems, pg. 7.
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Steps for Effective Risk Management
Steps to protect your content:
• Identify possible risks
• Define those risks (nature and scope)
• Assess potential impact (possible damage)
• Develop appropriate, feasible responses (plans)
• Respond to risks, threats (implement plans)
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Ask Yourself…..
During an emergency, could your agency access
its digital content?
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Risk Analysis
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Emergency Protection
• Engage in ongoing disaster planning
– Establish committee and share information
– Develop and maintain documents
– Update plans regularly
• Identify possible outcomes and prepare
– e.g., server goes down, media is damaged
– Simulations and drills
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• Safet first…
– Physical safety of guest and employees comes first then
prote t the stuff
• K o hat ou eed e t…
– Identify core functions of your operation
– Determine allowable downtime for each
– Consider steps to re-establish each function
– Develop relevant response documents
• Keep planning and response documents accessible!!
Identify Priorities
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NIST Planning Components
From NIST Contingency Planning Guide for Information Technology Systems, pg. 10.
Business Continuity
Plan (BCP)
Business Recovery
Plan (BRP)
Continuity of Operations Plan
(COOP)
IT Contingency
Plan
Crisis Communication
Plan
Cyber Incident Response Plan
Disaster Recovery Plan (DRP)
Occupant Emergency Plan
(OEP)
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From NIST Contingency Planning Guide for Information Technology Systems, pg. 11.
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• Still need to do the Risk Analysis
• Review existing disaster planning documents
• Create a response team to develop a plan
• Make sure copies are offsite (along with the inventory)
• Add to your inventory
– Where are the copies?
– Which collections need to be restored first?
– What is the recovery time?
What About the Digital Content?
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Data Criticality
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Treating Electronic Media (AKA - he ad thi gs happe to good I stitutio s…….)
Simple fact is … No matter how well you plan, some things are
JUST GONNA’ HAPPEN
However - There are several actions you can take
within the first 48 hours to mitigate the damage to
your digital collections.
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Treating Electronic Media
• Some materials should be kept wet until they
can be recovered by a contractor who
specializes in the recovery of those materials.
• Examples include:
– Hard drives from computers
– CDs
– Floppies
– Microfilm
– Motion picture film
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• Priority Action:
– Act quickly
– Do NOT attempt to recover the data yourself
• Keep hard drives wet
• Do NOT:
– Rinse in clean water
– Dry
– Shake
– Turn on
Computers and Hard Drives
Photo courtesy of NARA
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• Priority Action:
– Clean and air dry discs within 48 hours
– Never freeze, vacuum dry,
or expose wet discs to
heat
– It is usually easier to
discard wet discs if
backup copies are
readily available
CDs and Floppy Disks
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• Priority Action:
– Air dry discs within 48 hours
– Do not freeze dry
or use heat to dry
– Do not attempt to
play back
Audio and video
Photo courtesy of NARA—WNRC—NARA —2006
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Disaster Planning Resources
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Heritage Preser atio s Field Guide a d Wheel
Heritage Preservation’s Field Guide to Emergency Response
Heritage Preservation’s Emergency Response and Salvage Wheel
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Everyday Protection
• Have multiple copies
• Know where your content is located
– Onsite and offsite; online and offline
• Know who can have access to it
– DP staff, IT staff, others? (Permissions)
• Know who accesses your secure information
– For staff, depositors, users (Authentication)
• Know about your users to improves service
– Web use, internal use and activities, maintenance
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• How do you know if a digital file has changed?
– Generate and monitor checksums!
Checksum = Mathematical algorithm run
on/against a file and its resulting value
• Resulting value may also be
called:
– Fingerprint
– Hash Value
– Cryptographic Hash Function
Monitor the Files Themselves
Ex: from a Unix cksum utility 34
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Why is this a good thing?
• Checksums help maintain the INTEGRITY of your collections because they will tell you when things change over time
• If two files are exactly the same, the checksums of those files will also be exactly the same
• If a file becomes corrupted, degraded or is changed in some way, the next time you run the utility on it, the checksum will change
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• Open MD5summer
• Select your
root folder
• Select
Create Su s
MD5 Summer
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If The Files Are Differe t……
Uh-Oh! 38
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Exact File Checksum on a Single File
Checksums on Group of Files (Create Digest)
Checksums to put with files burned to CD/DVD (TestFile Applet)
Multiple checksum algorithms available
Verify Checksums (Test Digest)
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Creati g the Che ksu …
Exact File 40
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Outcomes
Good practice should result in:
• Keeping content accessible for the long-
term
• Practices in place to manage day-to-day
protection – an implemented security plan
• Disaster planning in place to prevent,
predict, detect, respond, repair –
preparation in the event of an emergency
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