On Fri, Oct 15, 2010 at 7:55 AM, Manas Alekar <manas_ale...@yahoo.com>wrote:
> > I have a small ubuntu server running for our development needs as > > > well as file server. We are now considering to upgrade it with ubuntu > > 10.04 LTS. > > The first tenet of system administration is: if it ain't broken don't fix > it. > > > We do not have any automatic backup system for now. I want to > > add something like RAID 1 for backing up data. > RAID is *not* for backing up data. It is to provide redundancy. You need to take backup on some other disk (which can be a RAID system itself). > Can anyone suggest best > > practices? Should I use and extra internal hard disk or external hard > > disk? > Using external or internal drive depends on whether you want to automate backup or not. I have not automated backup, so I use an external disk, so that I can turn off the disk once the backup is done. That way, my disk lives longer. > Is is possible to use fallback hard drive of bigger size and use > > extra space for other purposes, such as storing non critical data? > > Any pointers to good information? > That's not a good idea because your backup disk should ideally be separate and not used for anything else. In case of File system corruption or disk failure, your backup is at risk. > > RAID1 improves robustness. It is not a substitute for backup. Why you say? > Because hardware failure is not the only cause of losing data. > > Thumb rules? Slower disks are more reliable and that is why they are > preferred for backup. In places where access to server rooms cannot be > controlled, access to drawers can still be. > +1 for this! > > Hope that helps. > > Manas > > > _______________________________________ > Pune GNU/Linux Users Group Mailing List > _______________________________________ Pune GNU/Linux Users Group Mailing List
