Mauro Condarelli wrote: > Hi, > I asked this before, but no one answered, so I will try again :) > > I am using a large (500G) external USB disk as backup media. > It performs reasonably, so no sweat. > > Problem is: > Is there a way to do a pre-check to see if the drive is actually mounted > and, if not, just skip the scheduled backup? > It would be easy to put a do_not_backup file in the directory over which > I mount the remote. > I could then do a test to see if that file is present (no disk) or if it > is absent (something was mounted over it. > Unfortunately I have no idea where to put such a test in BackupPC! > > Can someone help me, please? > > Related issue: > I would like to use a small pool of identical external HDs in order to > increase further security.
Hi Mauro, Considering what it seems like you want to achieve, I would suggest another approach: Use at least three disks in a rotating scheme and RAID1. Say I have three disks labeled 1, 2 and 3. Then I would rotate them according to the schedule below, which guarantees that: - there is always at least one disk in the BackupPC server. - there is always at least one disk in the off-site storage. - all disks are never at the same location. 1 2 3 (a = attached, o = off-site) a o o a a o -> RAID sync o a o o a a -> RAID sync o o a a o a -> RAID sync . . . An even safer approach would of course be to rotate four disks where at least two disks are always attached to the BackupPC server. Good luck! /Martin Leben ------------------------------------------------------------------------- This SF.net email is sponsored by the 2008 JavaOne(SM) Conference Don't miss this year's exciting event. There's still time to save $100. Use priority code J8TL2D2. http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone _______________________________________________ BackupPC-users mailing list [email protected] List: https://lists.sourceforge.net/lists/listinfo/backuppc-users Wiki: http://backuppc.wiki.sourceforge.net Project: http://backuppc.sourceforge.net/
