zfs l2arc warmup

[Joar Jegleim]

On 27 March 2014 11:40, Rainer Duffner <rainer at ultra-secure.de> wrote:
> Am Thu, 27 Mar 2014 08:50:06 +0100
> schrieb Joar Jegleim <joar.jegleim at gmail.com>:
>
>> Hi list !
>>
>> I struggling to get a clear understanding of how the l2arc get warm
>> ( zfs). It's a FreeBSD 9.2-RELEASE server.
>>
>
>> The thing is with this particular pool is that it serves somewhere
>> between 20 -> 30 million jpegs for a website. The front page of the
>> site will for every reload present a mosaic of about 36 jpegs, and the
>> jpegs are completely randomly fetched from the pool.
>> I don't know what jpegs will be fetched at any given time, so I'm
>> installing about 2TB of l2arc ( the pool is about 1.6TB today) and I
>> want the whole pool to be available from the l2arc .
>>
>>
>> Any input on my 'rsync solution' to warmup the l2arc is much
>> appreciated :)
>>
>>
>
>
>
> Don't you need RAM for the L2ARC, too?
>
> http://www.richardelling.com/Home/scripts-and-programs-1/l2arc
>
>
> I'd just max-out the RAM on the DL370 - you'd need to do that anyway,
> according to the above spread-sheet....
>
>
>
>
>



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Joar Jegleim
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