> and, iiuc, BlackoutPeriods prevent any/all backups during their range,
> correct?
>
Yes and no. Under normal operation no backup will occur during
BlackoutPeriods. But if a client fails to backup consistently in the
allowed time periods, it will be tried also during blackouts periods. What
it means "fails to backup consistently" is controlled by the option
BlackoutBadPingLimit.
I _do_ want to have backups _available_ -- i.e., _not_ blacked out at any
> time -- so they can run if/as needed.
Good reminder re the 'risk' of eventual time-shift back ... I simply wanted
> to shift the _preference_ to a user-selected time, and will deal with it as
> it occurs.
But that's exactly the problem the BlackoutPeriods option tries to solve!.
Suppose a configuration like this (copied from my server):
$Conf{WakeupSchedule} = [3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16,
17, 18, 19, 20, 21, 22, 23, 1, 2];
$Conf{BlackoutBadPingLimit} = 14;
$Conf{BlackoutGoodCnt} = 1;
$Conf{BlackoutPeriods} = [
{
hourBegin => 7.5,
hourEnd => 0.5,
weekDays => [0, 1, 2, 3, 4, 5, 6],
};
Under normal operation the server will try to backup this host during the
1, 2, 3, 4, 5, 6 and 7am wakeup times, once per wakeup. No attempt to
backup will be made between 7:30am and 0:30am any day of the week.
However, if the host fails 14 consecutive pre-backup pings (in this case,
two full nights), then the server will try to contact the host at any of
the wakeup times, including those defined as blackout periods. Once a ping
works, the blackout is reinstated.
This way I make sure my host is backed up during the night, when I'm not
using it. However, if I forget to let my notebook on for a couple of nights
in a row, I'm safe as the server will perform the backup the next time it
sees the notebook, regardless of the time. And once it has made that
backup, it will go back to the normal night schedule.
Best regards,
Guillermo
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