On Sun, 7 Aug 2005, Michael Ben-Nes wrote: > >>I want to backup a file constantly as it change. > >> > >>Is it possible at all ? > > > >please define what "backup a file constantly" means for you. > > Yep, having an exact _current_ copy all the time on two storage system. > Its the WAL ( Write ahead log ) of the postgresql DB. > Its updated on any DB action. > So i assume it will be quite Long and will change every sec or less. > I would like to keep the backup on a another computer. NFS and such.
then you are looking for disk mirroring, which can be achieved with linux's md (multiple-disks, or multiple-devices) driver - i.e. the software RAID system, in level 1 (mirroring). google for it. you could also achieve disk mirroring using a hardware RAID controller - which will mean buying extra hardware. -- guy "For world domination - press 1, or dial 0, and please hold, for the creator." -- nob o. dy ================================================================= To unsubscribe, send mail to [EMAIL PROTECTED] with the word "unsubscribe" in the message body, e.g., run the command echo unsubscribe | mail [EMAIL PROTECTED]
