On Wednesday 19 January 2005 16:13, Vicki Stanfield wrote:
>On Wed, 2005-01-19 at 10:38 -0500, Jon LaBadie wrote:
>> On Wed, Jan 19, 2005 at 09:57:22AM -0500, Vicki Stanfield wrote:
>> > Thanks. I was unsure of whether this was a potential problem or
>> > not. As long as Amanda tells me that there was a problem and
>> > dumps to the spool, I am happy.
>>
>> Make sure your "holding disk" space is sufficiently large and
>> that your "reserve" parameter is set to some value smaller
>> than the default 100%.  The reserve aspect is to reserve the
>> holding disk for incrementals only when there are tape drive
>> problems.  If your holding disk is sufficiently large, you
>> can also hold some full backups so the reserve should be
>> decreased.  I have enough holding disk for several days
>> of normal dumps (> 1wk) and use a reserve of 20%.
>>
>> jl
>
>I'm not sure that I correctly understand the reserve parameter. I
> have heard that it is used to get amanda to degrade full dumps to
> merely incremental dumps if the holding disk gets full. I assume
> the percentage refers to how full. So how does degrading to
> incrementals help if the holding disk is 100% full? What am I
> misunderstanding here? I can understand saying that if the holding
> disk is 75% full, switch to incrementals though.

Thats precisely what a reserve of 25% would get you, Vicki.

>Vicki

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