Dave Howorth wrote:
> Rich Shepard wrote:
>
>> expire-rule:
>> # MIN HR DOM MON DOW STRFTIME_FMT
>> * * * * 1-7 +14 days
>> * * * 1-12 * +1 year
>>
>> The above says to keep daily backups for 14 days and monthly backups for a
>> year.
>>
>
> Oops, hadn't even read the example. But this rule doesn't do what the
> text says. Check the man page and work through an example. A free pony
> for the best explanation.
>
>
NOTE: This email best viewed as email was intended. Text mode-fixed
width font </steps off soapbox>
Since I want a pink pony (I hope they are available) I'm going to give
this a shot.
expire-rule:
> # MIN HR DOM MON DOW STRFTIME_FMT
> * * * * 1-7 +14 days
In this line we have told dirvish that any backup on the days of the week
between 1 and 7 (inclusive) we want to retain the dirvish vault image for 14
days. The last fourteen days of our backups will not be expired when we run
dirvish-expire.
> # MIN HR DOM MON DOW STRFTIME_FMT
> * * * 1-12 * +1 year
On this line we have told the system that any backups made in MONths 1-12
(inclusive) should be retained for 1 year. The last 365 days of backups will
not be expired when we run dirvish-expire.
If the intent was to retain monthly backups, I would recommend that we pick a
Day Of the Month on which to retain the backup, such as the 1st of every month,
and set the rule to flag those images to retain those monthlies for a year.
> # MIN HR DOM MON DOW STRFTIME_FMT
> * * 1 * * +1 year
Follow questions of my own.
*How would one retain monthly backups from the LAST day of each month? Not all
months have 31 days.
*How exactly does one specify the FIRST Sunday of each month? Is it:
> # MIN HR DOM MON DOW STRFTIME_FMT
> * * 1 * 1 +1 year
*In 'man dirvish.conf' the example for expire-rule contained this statement:
"...the remaining nightlies are kept for 5 weeks." I was unable to find that
in the example provided in my man page (which I suppose I should paste here.)
#MIN HR DOM MON DOW EXPIRE
* * * * 1 +3 months
* * 1-7 * su +1 year
* * 1-7 1,4,7,10 1 never
* 10-20 * * * +10 days
--
Richard
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