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Why so often ?
... because it's so easy !
I use a tool (secondCopy at www.centered.com) that does all the stuff for me. I simply specify some include and / or exclude file-pattern, and a destination (other HD), and the rest is done automatically in the background, without interaction.
So you can exclude all the *.obj, *.sbr ..., and so only the sources are copied. Mixed with some intelligence, that only changed files are to be copied, my data is backed up really quick all 2 hours !
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Backups? We doan need no steenking ba#%@!*[[[[., NO CARRIER
"We've reached the point where the first duty of intelligent men is to restate the obvious."
-- George Orwell
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Hi Everybody,
I am a part owner in a new corporation that is beginning to emerge in the software industry. I thought that you might be interested since it is a backup utility that addresses nearly every concern that has been posted in this collection of threads.
This software, information saver, has been in-use in a very large corporation for almost 2 years now (Due to the restrictions of the contract that I am under, I cannot reveal their name.) However, they have over 500 computers nationwide that are being successfully backed up by our software. Information saver is in release 2.3, and at this company, has saved thousands of hours of labor and stress trying to recreate mission critical information. This post may be a little premature, but I think that you guys will like this software. Some of it's more inportant features are off-site backups, security, redundancy, automation, email backup support, automatic updates, and lastly it alerts the administrator if a user has not backed up in a pre-set number of days.
If you would like more information email me at cmcburney@attbi.com. I would love to give you more information about our product such as: brochures, and technical information.
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And if you'd like to advertise on CodeProject then I can offer you some great rates! Just email me at marketing@codeproject.com 
cheers,
Chris Maunder
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How safe would it be to create a backup of my system on a hard disk which is then removed from my machine? Do HDDs degrade over time?
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James Spibey wrote:
Do HDDs degrade over time
I'd say it'd take a long time for them to degrade. You using anything at the moment?
"When a friend hurts us, we should write it down in the sand, where the winds of forgiveness get in charge of erasing it away, and when something great happens, we should engrave it in the stone of the memory of the heart, where no wind can erase it" Nish on life [methinks]
"It's The Soapbox; topics are optional" Shog 9
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Todays HDDs have a quite long life time. HDD manufactors usually denote the lifetime of their products by the MTBF value (mean time between failures). However, even if the model of your HDD is said to have an MTBF of, let's say, 50,000 hours, this may have nothing to do with your concrete instance of this HD model. It is just a stochastic value and never forget the meaning of the "M" in MTBF!
You must use at least three independent backup medias "round robin". Everything else is not worse to be called a "backup"! Think of a lightning bolt that crashes your machine just in the moment you are doing your backup. ZOOM! Everything is lost. Or the common virus infection, that is detected two weeks late... 
And always keep at least one of the medias in a remote location!
Backup is a serious and important thing and really the wrong place to save money. You may say I am paranoid, but if the data is the base for your and your families likelihood one should really be a little bit paranoid about it. Everything else is just reckless.
--
Daniel Lohmann
http://www.losoft.de
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One feature of VS is it prompts you to save your files before compiling.
I had just finished compiling, and lightning struck a major transformer for our province, triggering an overload, and shutting down half the province.
Except for our server room, which is UPS-run, city hall was down for 40 minutes.
On another note, I came back from a site with CDs in my jacket just as a bomb scare hit, and we evacuated to a nearby bar 
It's been 4 years, and noone lets me forget how I "saved" the CDs.
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Richard Jones wrote:
forget how I "saved" the CDs
My hero!
cheers,
Chris Maunder
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I have all my source and documents stored in CVS on my linux box, which gets zipped up every night and secure copied to my office workstation and to a friends server, so I think it's pretty safe.
Even if Stockholm gets hit by EMP or something I will still be able to retrieve my backups from my friends server.
---
-"Minds are like parachutes. They only work when open."
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Sounds a bit like the Linus Torvald strategy 
Once in an interview he told, that he never does backups of the Linux kernel. It is mirrored to hundreds of servers all over the world every 24 hours...
--
Daniel Lohmann
http://www.losoft.de
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My test is if it can't fit on a floppy then i don't back it up. But this could be the reason for my receeding hair line. Me yanking my hair out everytime my system crashes and I can't retrieve the important docs 
Code4Food
----
"There is no try; only do or do not"
-Yoda
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Man remember when floppies came in 5.25"? and when a 10Meg Hard drive was the size of a bookcase? Geez 
Code4Food
----
"There is no try; only do or do not"
-Yoda
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Code4Food wrote:
Man remember when floppies came in 5.25"?
Do you remember the 8" floppies? That's what I call a real floppy
Regards
Thomas
Sonork id: 100.10453 Thömmi
Disclaimer:
Because of heavy processing requirements, we are currently using some of your unused brain capacity for backup processing. Please ignore any hallucinations, voices or unusual dreams you may experience. Please avoid concentration-intensive tasks until further notice. Thank you.
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I have an 8" boot disk and the machine it goes into under my desk!
Systems AXIS Ltd - Software for Business ...
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I worked on a machine (MicroVAX) where the 300Mb hard drive weighed 70 pounds and cost $15,000US.
"Think of it as evolution in action." - 'Oath of Fealty' by Larry Niven and Jerry Pournelle
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Joshua Nussbaum wrote:
what is a floppy?
I was thinking the exact same thing
"When a friend hurts us, we should write it down in the sand, where the winds of forgiveness get in charge of erasing it away, and when something great happens, we should engrave it in the stone of the memory of the heart, where no wind can erase it" Nish on life [methinks]
"It's The Soapbox; topics are optional" Shog 9
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Is this a serious question?
Are there really developers out there who don't know what a floppy is?
Oh man I feel so old....
cheers,
Chris Maunder
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sorry dudes, my sarcasm doesnt work well on the www. 
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If disaster strikes the day before you backup, you would be a fool to _ever_ backup.
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...it is all safely stored in my head.
"Life, as well as software, has bugs." - Roger Wright
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David Wulff wrote:
it is all safely stored in my head
Ohhh,Then what happend if your head crashed? 
Mazy
"If I go crazy then will you still
Call me Superman
If I’m alive and well, will you be
There holding my hand
I’ll keep you by my side with
My superhuman might
Kryptonite"Kryptonite-3 Doors Down
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I find a good long soak in neat ethanol normally does the trick -- well at least then I can't remember what it was I couldn't remember. 
"Life, as well as software, has bugs." - Roger Wright
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My believe is that one need to backup at two levels. This is especially true when you work in small firm.
The first backup level should be performed daily (weakly) and the backups can be stored inside the firm (working enviroment).
The second backup level shall be done weekly (monthly) and the backups MUST be stored on a remote location -- another building.
If this sounds paranoic to you, image your office in a fire, which do not only destroy your HDD, but server, CDs and backup tapes as well
... or ...
a simple burglery that results in a loss of your computer and all backup CDs (nicely labeled and organized) that were stored on a shell above your computer.
We should not forget that in a true disaster  you can lose several working years, either yours or your team's.
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