[time-nuts] Odetics 325 & 425: File recovery

[wje]

   Rsync works quite well on both Linux and Windows. I use it to back up
   my lab computer (XP), my work computer (Vista, unfortunately), several
   family computers (XP), and my primary Linux system. There's an
   excellent bit of freeware, Delta Copy, that provides rsync for the
   Windows side, either on command or via scheduled tasks.
   Another big benefit of rsync is that it does intelligent backups, only
   backing up what's changed.
   BTW, a raid array is a really good idea, too. I back up everything from
   the primary Linux box to an Infrant/Netgrar ReadyNAS 1Tb raid 5 box,
   also via rsync.
Bill Ezell
----------
They said 'Windows or better'
so I used Linux.

   Didier Juges wrote:

The problem nowadays is not the storage, it's the backup software.

I have most of my important data in 4 places: two web sites, main 250 GB
hard drive and external 500GB Western Digital USB Hard Drive (highly
recommended). What I call "important data" is about 30 GB worth of stuff
that is typically copied in all 4 places. The problem is keeping everything
in sync. Syncing between two local resources (main hard drive and USB hard
drive) is not too hard, considering the transfer speed that can be achieved,
but mirroring the web resources is a pain, partly because of speed and
partly because of OS differences in file name rules (Windows/Linux). I have
not found the software I wanted (only looked at free/cheap stuff) so I am
considering writing my own (Visual Basic).

If anyone has suggestions for free/cheap commercial or FOS software to sync
via ftp (Windows <-> Linux), I'll be glad to hear.

Didier KO4BB




-----Original Message-----
From: [1]time-nuts-bounces at febo.com
[[2]mailto:time-nuts-bounces at febo.com] On Behalf Of Hal Murray
Sent: Friday, August 22, 2008 12:46 AM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Odetics 325 & 425: File recovery



        I'm still picking up the pieces from a major FTP

archive crash that

lost me a considerable amount of data.

Disks are cheap.

Many years ago, one of the guys I worked with pointed out to
me/us that it was cheaper to buy more disks than it was to
pay us at our normal sallary to figure out which bits should
be saved.  You can do a lot of handwaving in that area, but
that's the general idea.

My straw man for low cost backup is a USB disk.  I'm thinking
of a real rotating disk rather than the typical flash "disk".
 The key idea is that after you pull the cable, your system
can't trash the bits.  That is neither software nor fat
fingers will delete anything.  It isn't perfect, but it's
close and simple.


Any interesting bits should be backed up multiple ways.   If
any time-nuts
have bits that aren't (well) backed up, please contact me off
line so we can work out some way to add another backup copy
to the system.



--
These are my opinions, not necessarily my employer's.  I hate spam.




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