some ZFS questions

[Warren Block]

On Sun, 24 Aug 2014, Michael Sierchio wrote:

> On Sun, Aug 24, 2014 at 6:42 PM,  <kpneal at pobox.com> wrote:
>
>
>> If you can use GPT partitioning then you can have GPT labels on partitions
>> spanning entire disks. Then you can rearrange physical disks to your hearts
>> content.
>>
>> The bonus is that you can put identifying information in the label name
>> to be even more sure you are replacing the correct disk when the time
>> comes.
>
> You can do this - and it's the approach that FreeNAS takes, but you
> lose the benefits of presenting a whole disk to ZFS - the ability to
> fully use the disk cache when presented a raw device rather than a
> partition.

I thought that was a Solaris-only limitation.  In fact, I'm pretty sure 
it is, and does not apply on FreeBSD.