Secure copy program

[DarkTXKnight]

I just built an UnRAID server for home and I would like to make sure that the files I copy over to it from the windows hosts are good copies. What can I use to ensure that nothing gets corrupted?

 

[sourceninja]

well one way is to do a md5 of the files and compare them. Another (easier) way is to use rsync. In fact, I'd probably use rsync.

 

[QuixoticOne]

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
For network or disc to disc transfer:

Free SyncBack version
http://www.2brightsparks.com/downloads.html

Free synctoy 2.0:
http://www.microsoft.com/proph...loads/synctoybeta.aspx

Cobian backup 9: (makes zip files and does other useful things)
http://www.educ.umu.se/~cobian/cobianbackup.htm

http://www.cis.upenn.edu/~bcpierce/unison/index.html

http://www.rsync.net/resources/howto/windows_rsync.html

I'd also suggest rsync in the mode that does checksumming of the remote and local files to ensure they're not different (as opposed to just checking the name, size, timestamp).

Some of these other sync programs may offer a content comparison / checksumming / hashing type verification to ensure that the source and backup files are truly identical.

You can use something like FCIV to verify independently that the hashes of the source files are matching the hashes of the backed up files:
http://support.microsoft.com/kb/841290

 

[dakels]

I also recommend Rsync. I haven't used it in several years but it served me really well.

 

[DarkTXKnight]

Thanks!! I thought about Rync and vaguely remember a package thqat is an rsync for windows... does anyone know where I can find that?

 

[sourceninja]

The rsync homepage has one http://rsync.samba.org/download.html
There are also tons of others. You could install cygwin and do it that way. You could try http://www.aboutmyip.com/AboutMyXApp/DeltaCopy.jsp or you could even try http://www.cis.upenn.edu/~bcpierce/unison/ (its like rsync)

 

[QuixoticOne]

http://sourceforge.net/project...8081&release_id=615606
http://www.itefix.no/i2/node/10650
http://www.itefix.no/i2/faq/39
http://rsync.samba.org/resources.html

There are ways to use rsync where it probably won't do checksum based file comparisons, so be sure that you're using it correctly for maximum verification. Using something like FCIV to store and check the hashes makes a lot of sense. You could even use something like par2 to help add some more redundant file integrity protection.

 

[DarkTXKnight]

By all means I would like a version that uses the hashes. I am planning on wiping out the smaller hard drives the data is coming from and keeping this mahcine as the master copy of my media files and docs with a tape backup of whatever goes onto disk