ZFS default compression algo for contemporary FreeBSD versions

[Volodymyr Kostyrko]

04.07.2013 18:51, Dmitry Morozovsky wrote:
> On Thu, 4 Jul 2013, Volodymyr Kostyrko wrote:
>
>> 04.07.2013 15:22, Dmitry Morozovsky wrote:
>>> Collegues,
>>>
>>> is it sane to just set 'zfs compression=on dataset' to achieve best algo on
>>> fresh FreeBSD systems (-current and/or stable/9)?
>>
>> No and this is not safe AFAIK. Default compression is still lzjb and
>> bootloader can't boot oof datasets compressed with lzjb. However on stable/9
>> you can simply set zfs compression=lz4 pool and everything would work fine if
>> you updated the boot loader.
>
> I did not intend to compress root/boot datasets (and there is no much sense in
> this AFAICS);
>
> the second (and actually more important) my question is -- is lz4 in general
> better than lzjb?

Yes. Much better in terms of speed.

-- 
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