On Sun, Apr 10, 2011 at 12:16 PM, Les Mikesell <lesmikes...@gmail.com> wrote: > I've never heard of raid sync affecting the original disk(s). I've been doing > it for years, first with a set of firewire external drives (which also had USB > but it was slower), then the sata bays. There might be problems in adding > more > members than originally created in the set, though. In your situation I would <snip>
FYI for all, not doubting Les' good experience doing this (using mdraid mirroring as a user-land tool to mirror a partition to an external drive for offsite backup rotation): I had a pretty extensive discussion with the Linux-RAID list on thisand the general conclution was that the way mdraid does the mirroring would just add unnecessary kruft to the resulting filesystem and make recovery more difficult. The bottom line from them was that rather than using RAID to do the mirroring to a removable drive, better to just use a tool like DD. When I expressed that I wanted a bit more assurance of a "bit-perfect" mirror being done, and was directed to these enhanced versions: http://dc3dd.sourceforge.net/ http://www.forensicswiki.org/wiki/Dc3dd Of course there are many COTS "partition cloning" tools out there as well if that's a better fit for a given situation. ------------------------------------------------------------------------------ Xperia(TM) PLAY It's a major breakthrough. An authentic gaming smartphone on the nation's most reliable network. And it wants your games. http://p.sf.net/sfu/verizon-sfdev _______________________________________________ BackupPC-users mailing list BackupPC-users@lists.sourceforge.net List: https://lists.sourceforge.net/lists/listinfo/backuppc-users Wiki: http://backuppc.wiki.sourceforge.net Project: http://backuppc.sourceforge.net/
