Re: [Bacula-users] One tape per day and Volume Use Duration

2011-03-10 Thread Marcello Romani
Il 10/03/2011 12:47, Martin Simmons ha scritto:
>> On Thu, 10 Mar 2011 09:55:26 +0100, Marcello Romani said:
>>
>>   searching the 'net for how to setup a one-tape-per-day schedule, I
>> found in many places the suggestion to set the Volume Use Duration
>> parameter to 23 hours. If I remember correctly, these are counted from
>> the "last written" timestamp of the tape.
>> So my question is: shouldn't this value take into account the time it
>> takes for the backup to complete (otherwise subsequent backups are
>> delayed until the previous day's tape becomes 'used') ? Is it correct to
>> set it to something like 12 hours to remain on the safe side ?
>
> No, the Volume Use Duration is counted from the "first written" timestamp, so
> the only delay is the time between the scheduled time and the start time of
> the job.
>
> You were probably thinking of the Volume Retention, which /is/ counted from
> the "last written" time.
>
> __Martin
>
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Thank you Martin.

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Re: [Bacula-users] One tape per day and Volume Use Duration

2011-03-10 Thread Martin Simmons
> On Thu, 10 Mar 2011 09:55:26 +0100, Marcello Romani said:
> 
>  searching the 'net for how to setup a one-tape-per-day schedule, I 
> found in many places the suggestion to set the Volume Use Duration 
> parameter to 23 hours. If I remember correctly, these are counted from 
> the "last written" timestamp of the tape.
> So my question is: shouldn't this value take into account the time it 
> takes for the backup to complete (otherwise subsequent backups are 
> delayed until the previous day's tape becomes 'used') ? Is it correct to 
> set it to something like 12 hours to remain on the safe side ?

No, the Volume Use Duration is counted from the "first written" timestamp, so
the only delay is the time between the scheduled time and the start time of
the job.

You were probably thinking of the Volume Retention, which /is/ counted from
the "last written" time.

__Martin

--
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for your organization - today and in the future.
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[Bacula-users] One tape per day and Volume Use Duration

2011-03-10 Thread Marcello Romani
Hi all,
 searching the 'net for how to setup a one-tape-per-day schedule, I 
found in many places the suggestion to set the Volume Use Duration 
parameter to 23 hours. If I remember correctly, these are counted from 
the "last written" timestamp of the tape.
So my question is: shouldn't this value take into account the time it 
takes for the backup to complete (otherwise subsequent backups are 
delayed until the previous day's tape becomes 'used') ? Is it correct to 
set it to something like 12 hours to remain on the safe side ?

Thanks.

-- 
Marcello Romani

--
Colocation vs. Managed Hosting
A question and answer guide to determining the best fit
for your organization - today and in the future.
http://p.sf.net/sfu/internap-sfd2d
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