2019-05-09 1 Have you backed up your data – recently? Alan German and Chris Taylor Ottawa PC Users’ Group It doesn’t have to be a disk crash • Files deleted / changed inadvertently • External USB drives / CDs / DVDs lost / corrupted • Theft • Fires • Electrical surges • Ransomware Backup Components Operating System – - plus patches Applications – - plus updates Data files – - word processing files – digital images – music files – anything you create Backup Storage Additional internal hard drive 2-8 TB, 3-4 cents per TB External USB hard drive 1-8 TB, 2.5-7 cents per TB USB memory stick Memory card (SD, Compact Flash, xD Picture Card, etc.) Backup Storage Format Typical sizes Cost per GB (cents) Internal hard drive 2 – 8 TB 3 – 4 External hard drive 1 – 8 TB 2 – 7 Internal solid state drive 500 GB – 2 TB 15 – 20 External solid state drive 250 GB – 1 TB 25 – 52 Flash drive 64 – 256 GB 22 – 27 SD card 32 – 128 GB 27 – 47
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Have you backed up your data – recently? · Data Backup Immediate (sessional) Use file synchronization* to backup all changes to data files (additions, edits, deletions) just before
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2019-05-09
1
Have you backed up your data – recently?
Alan German and Chris TaylorOttawa PC Users’ Group
Backup StorageFormat Typical sizes Cost per GB (cents)
Internal hard drive 2 – 8 TB 3 – 4
External hard drive 1 – 8 TB 2 – 7
Internal solid state drive 500 GB – 2 TB 15 – 20
External solid state drive 250 GB – 1 TB 25 – 52
Flash drive 64 – 256 GB 22 – 27
SD card 32 – 128 GB 27 – 47
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One More Backup Location... Cloud backup
Definition of Cloud
Another name for
Someone else’s computer
Cloud backup works, but…
It is someone else’s computer– If they go out of business, your files are gone
Mitigation: nothing unique stored there
What if they are compromised?– Sensitive data lost to attackers
Mitigation: nothing sensitive unless encrypted
Speed/bandwidth– 1 TB would take
20 days to backup (5 mbps upload) 3½ days to restore (30 mbps download) Blow my 300 GB/month cap
– Mitigation: don’t back up everything A problem for disaster recovery
Cloud backup providers
Carbonite– Unlimited storage – 1 device– Continuous backup option– File Explorer integration– US$72 per year
IDrive– Unlimited devices – one user– Sync across devices– Backup/restore from shipped drive– US$69.50 per year (2 TB)
“Basic” free (5 GB)
Many others
Cloud backup
I use Google Drive– Presentation material
Auto-synched between all my computers If my computer dies, I borrow another
– Documents for traveling Itinerary, hotel reservations, passport
– Files to share with others– 15 GB for free
I currently use about 3 GB 200 GB – CAN$48/yr
Another strategy is to…
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Why imaging
Your data is what really matters– You can reinstall your operating system– You can reinstall your programs– Your data is not easy / possible to replace
Why not back up just your important files?
Without imaging
In the event of a disaster– Replace failed hard drive– Find your installation media for operating system
Install operating system– Find installation media for all your programs
If you remember what they all were… Install each program … one after the other
– Recover data Did you
backup allyour data?
– Get back to working on things you have been unable to do for the last week while recovering
With imaging
Imaging program backs up everything– Operating system, programs, customizations,
data
In the event of a disaster– Replace failed hard drive– Imaging program restores everything
Operating system, programs, customizations, data
– A couple of hours later, you are back
Can also restore individual files or folders
Problems with imaging
Space required– Full image ~60% – 80% of on-disk total– My system – 781 GB being backed up
Full backup = 713 GB (583 GB of photos – compressed already) 30 days of incrementals = 123 GB Total for a month = 836 GB
– Mitigation External hard drives pretty inexpensive (4TB - $115) Incremental images a lot smaller (but still several GB)
Time required– Full image can take several hours for 1 – 2 TB– Mitigation
Incremental images take a lot less time– Can still be an hour
Automate as a scheduled event overnight
Free options for imaging
Finding a backup program– www.opcug.ca/Reviews/BackupPrograms.htm
EaseUS Todo Backup Free– www.easeus.com/backup-software/tb-free.html