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Posted

I want to run Drive Image software for Back-Up purposes... But I'm worried if I have enough Free space on my Hard Drive to make the copy.

My Question....

Are Drive Images 'Compressed' in any way?

or

Do I require matching space on my target drive to accomodate an image??

At this moment I'm using :

C: (O/S Drive) = 17+GB

D: (App Drive) = 103+GB

E: (RAID 1, Data drive) = 114+GB (Includes 22GB of Docs, Photos, etc + 31Gb Music)

Total Used Space = approx 235GB

Available Space on External Back-Up drive: 130GB

(I could save some space by only Imaging the Docs Photos & Music etc on Data Drive. Which would reduce total to 185GB)

Are Drive Images compressed?

CS

Posted
Are Drive Images compressed?

From the Symantec web site > "Advanced compression and encryption—Minimizes storage space and helps keep sensitive documents safe."

The issue though is that not all files compress equally. .jpg and most video formats will compress very little while text, word docs, excel etc will compress significantly. You might try just a test by backing up a directory with about 100MB of mixed file types and see what the resulting size reduction is.

Posted (edited)

I was playing around with an old copy of Norton Ghost 2003 for the first time yesterday. Backing up 6Gb of data to a dvd took up 4 Gb on the dvd disc.

Backing up the same 6Gb of data to another partition on the same hard disc took about 2.7 GB (not quite sure why the discrepancy in size between DVD and hard disk?).

Why not just try running the software. If there's not enough space, it should pop up a warning and tell you it can't proceed.

Edited by katana
Posted
I was playing around with an old copy of Norton Ghost 2003 for the first time yesterday. Backing up 6Gb of data to a dvd took up 4 Gb on the dvd disc.

Backing up the same 6Gb of data to another partition on the same hard disc took about 2.7 GB (not quite sure why the discrepancy in size between DVD and hard disk?).

Why not just try running the software. If there's not enough space, it should pop up a warning and tell you it can't proceed.

My idea too...

The software I have is Acronis True Image v11... I was attempting to run a backup and got stalled in the setup when It demanded an ID and Password... then wouldn't accept it.

So now I'm off to Fortune to get Genie Backup Manager v8... I'll give that a try next.

Thanks,

CS

Posted
The software I have is Acronis True Image v11...

The comment I gave regarding Symantec was based on their product called "Drive Image" and I see you are referring to it as a generic term. I assume Acronis must have compression in it also.

Posted

I use Drive Image to back up my hard drive weekly, however you cannot back up a drive to the same drive e.g You cannot back up the C drive to the C drive!

I bought an external hard drive (3000 baht) and use that purely for backup. My hard drive is partioned with all the data files on the d drive and eveything else on the c drive. Drive image is programmed to back up both drives on a sunday morning when I am not using the PC I just have to remember to switch on the external drive!

I also have a virgin backup so if all else fails I can restore from that.

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