Linux and data storage?

Sean M McMahon smcmahon at usgs.gov
Mon Sep 27 15:16:18 EDT 2004


You mention  using du -ms to find out how much data you have.  What is the 
difference between that and using df -k .  ?




Janina Sajka <janina at rednote.net>
Sent by: speakup-bounces at braille.uwo.ca
09/27/2004 11:11 AM
Please respond to "Speakup is a screen review system for Linux." 

 
        To:     "Speakup is a screen review system for Linux." <speakup at braille.uwo.ca>
        cc: 
        Subject:        Re: Linux and data storage?


Hi, Karen:

You don't say how much data you have there? Issue the following command
from your home directory to find out how much data you have:

du -ms .

It will give you a number in megabytes. It may take some time to run.

Now, to your question. You ask whether it would be easy. Well, yes, it
might be, or it might not be.

It's not likely to be pleasant to move copious amounts of data over a
dial up modem connection, but there are easy technologies that can
insure you get a true copy even if it takes some time to accomplish.

I'm thinking of rsync.

And, yes, you are on the right track. Hardware and software can be
replaced. One's work/data files cannot be so readily replaced. So, it is
wise to have one's important data in two physical clocations.

But let's start out by defining how much "a lot" is.

Karen Lewellen writes:
> Hi all,
> This is an odd one, so I hope I ask it in such a way to make sense.
> I do not have a Linux machine.  I have been trying to get this, and 
> thought I had one in the he works but it seems that party either made up 

> the machines they were offering, or  for some other reason is not coming 

> through.
> In any case, I do use a Linux shell service extensively.  I fear almost 
> too extensively, as you will understand in a moment.
> The OS on the system i use mostly is dos, and I use nettamer to telnet 
to 
> my Linux shell.
> In the workspace of my shell service i have a great deal of 
irreplaceable 
> files and programs.  I eave them up here, for ease, but I just was 
> reminded that this may be a venerable state of affairs.
> Fortunately when the server went down nothing was lost or so it seems, 
but 
> I have a serious factor to consider.
>  My question has two parts.
> first, is there a way to move large amounts of data stored in the 
> workspace of a Linux shell service to another location in tact, with 
> relative ease,  and without taking all of the data on the entire system?
> second, if my machine was also a Linux one, would this kind of storage 
be 
> easy to do?
> As I said before I do not have such a machine, but this has shaken me up 

> enough that if a full Linux or Linux/dos or Linux/windows machine would 
> give me some firm safe backup, I will have to start advertising for 
> someone to build this for me and encurl the expense.
>  I have too busy a professional life to do this myself, and would rather 

> pay someone with the skills than lose valuable time trying to re-invent 
the 
> wheel.
> Thanks,
> Karen
> 
> 
> _______________________________________________
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> Speakup at braille.uwo.ca
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-- 
 
                                                                 Janina 
Sajka, Chair
 Accessibility Workgroup
                                                                 Free 
Standards Group (FSG)

janina at freestandards.org                 Phone: +1 202.494.7040


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