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Full Discussion: Help finding a Unix friendly RAID 1 backup
Special Forums Hardware Filesystems, Disks and Memory Help finding a Unix friendly RAID 1 backup Post 302507716 by Corona688 on Thursday 24th of March 2011 02:38:39 PM
Old 03-24-2011
Quote:
Originally Posted by c.wakeman
It seems option B might be easier but (from what I can gather) has the following limitation: it only copies the datafiles, not the entire hard drive.
Exactly.
Quote:
So, with the first option, if the server hard drive fails, I could conceivably turn the external hard drive into the new server hard drive (assuming, as you say, the connections match).
Yep.
Quote:
With the second option, if the server hard drive fails, I would need to purchase a new server hard drive, program it accordingly, and upload/unpack the .tar file onto the new hard drive. Is this correct?
You're on a roll, that's exactly what would happen.

The main advantage of the online backup, besides that it's easy, would be that you could conceivably access the files in a pure Windows system if you really, really needed to get at them. You'd need to install something like 7zip to extract the tarball, and it'd take a long time, but you could do it.

Except it doesn't look quite so easy now since your system can't understand XFS. You'd have to reformat the drive as something else, or install XFS drivers. It's possible you already have them, just haven't loaded them yet -- try modprobe xfs. (The offline backup doesn't care what's on the USB drive -- it overwrites it all raw.)
Quote:
Do you have any preferences/suggestions for what you would do?
I like bare-metal backups. Having an entire working installation to throw in when things go seriously pear-shaped has let me stumble through a few awful mistakes learning experiences mostly unscathed. It's neither quick, pretty, nor elegant, but it's powerful. Harder to do for a complicated system, but yours only has one disk.

You could even keep the backup "fresh" in a similar way to the online backup, once you have it, since almost nothing but user files are going to change.
Last edited by Corona688; 03-24-2011 at 06:11 PM..
 

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LEARN ABOUT CENTOS

ntfsprogs

NTFSPROGS(8)                                                  System Manager's Manual                                                 NTFSPROGS(8)

NAME

       ntfsprogs - tools for doing neat things with NTFS

OVERVIEW

       ntfsprogs is a suite of NTFS utilities based around a shared library.  The tools are available for free and come with full source code.

TOOLS

       mkntfs(8) - Create an NTFS filesystem.

       ntfscat(8) - Dump a file's content to the standard output.

       ntfsclone(8) - Efficiently clone, backup, restore or rescue NTFS.

       ntfscluster(8) - Locate the files which use the given sectors or clusters.

       ntfscmp(8) - Compare two NTFS filesystems and tell the differences.

       ntfscp(8) - Copy a file to an NTFS volume.

       ntfsfix(8) - Check and fix some common errors, clear the LogFile and make Windows perform a thorough check next time it boots.

       ntfsinfo(8) - Show information about NTFS or one of the files or directories within it.

       ntfslabel(8) - Show, or set, an NTFS filesystem's volume label.

       ntfsls(8) - List information about files in a directory residing on an NTFS.

       ntfsresize(8) - Resize NTFS without losing data.

       ntfstruncate(8) - Truncate a file on an NTFS volume.

       ntfsundelete(8) - Recover deleted files from NTFS.

       ntfswipe(8) - Overwrite unused space on an NTFS volume.

AUTHORS

       The  tools  were  written  by  Anton  Altaparmakov, Carmelo Kintana, Cristian Klein, Erik Sornes, Giang Nguyen, Holger Ohmacht, Lode Leroy,
       Matthew J. Fanto, Per Olofsson, Richard Russon, Szabolcs Szakacsits, Yura Pakhuchiy and Yuval Fledel.

AVAILABILITY

       The ntfsprogs are part of the ntfs-3g package which can be downloaded from:
       http://www.tuxera.com/community/

SEE ALSO

       ntfs-3g(8)

ntfs-3g 2017.3.23                                                 September 2007                                                      NTFSPROGS(8)
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