Questions about backup speeds and backups failing

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How do the following influence backup speed (the total tile it takes acronis to complete a backup operation)

-Compression
-Encryption
-Validation

And do any of the above influence the rate at which a backup fails? (So that the backup can not be mounted or recovered properly?)

Di, 01/03/2012 - 12:08
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Validation will add the time it takes your pc to scan the entire file -- some computations and comparisons are made but the cpu time involved for that is insignificant. IF it takes an hour to make a backup, the validtion will take roughly 45 min, ime.

Encryptin will usually add some computational overhead but it shuld be relativley insignifiacnt.

Normal compression will usualy save some backup time by reducing the amunt of byte to write -- unless the files begin backed up are already highly compressed (jpegs, mpes, mp3s, zips, etc. )

High compression will add a lot of computational overhead while providing very little additioan compression vis-a-vis Normal compression.

Low or normal compression can provide a small decrease in backup time -- but you trade of the amount of bytes to be written against the reduction in comoutational overhead.

Normal compression is a very good compromise -- going high or low buys you very little and would be preferred only if either time or sapce was at a maximum and the other was not.

So it's going to depend a bit on what kind of files your are backing up. If it's a concern, I recommend you try it each way with some sample files and see what you get.

You did't ask but while we're onthe subject of backup time, what about resource priority?
Low allows you to use other programs with noticably few stalls and stutters, and have a noticable increae in backup time if you are using other programs -- how much impact depnds on how much you are trying to do other file read/writes while backing up.
Regular will give you stalls and stutters when using other programs, espeically ones that use substantila file read/writes, but backup time will be noticably faster.

High priority will make the pc almost unusable for other programs, so the backup will be as fast as if you chose low or normal and didn't run other programs (especially ones doing disk read/writes).

Di, 01/03/2012 - 12:54
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I have True image 2013. I have been using it every week for two months (6 times)
I do an image of my drive C (150 GB) and backup to another hard drive on my computer.
It has been working fine until last week and this week. The time it usually takes
has been about 15 minutes. Starting last week it now takes 8 to 12 hours.

Please advise

Do, 06/13/2013 - 12:50
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truwrikodrorowrelupicugojestutroclulachosaswunuhospikigawakijosaswenomaruclojeueclikaspedrubewidebrisubrohutrurifruuagothunugekedrumucisiuobrobrecrupeslapuswosluprothethibakaslechurathikucli
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When a backup runs unusually long, something's gone wrong. First thing I'd try is to cancel the backup, unload ati, reboot pc and try again. If that doesn't work, then do a chkdsk /r on both drives to makes sure there are read/write problems.

Do, 06/13/2013 - 13:04
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