You can see the original ARC case here:
On 8 Dec 2011, at 16:41, Ian Collins wrote:
> On 12/ 9/11 12:39 AM, Darren J Moffat wrote:
>> On 12/07/11 20:48, Mertol Ozyoney wrote:
>>> Unfortunetly the answer is no. Neither l1 nor l2 cache is dedup aware.
>>> The only vendor i know that can do this is Netapp
>>> In fact , most of our functions, like replication is not dedup aware.
>>> For example, thecnicaly it's possible to optimize our replication that
>>> it does not send daya chunks if a data chunk with the same chechsum
>>> exists in target, without enabling dedup on target and source.
>> We already do that with 'zfs send -D':
>> Perform dedup processing on the stream. Deduplicated
>> streams cannot be received on systems that do not
>> support the stream deduplication feature.
> Is there any more published information on how this feature works?
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