On 10/14/12 10:02, Michael Armstrong wrote:
Hi Guys,

I have a "portable pool" i.e. one that I carry around in an enclosure. However, 
any SSD I add for L2ARC, will not be carried around... meaning the cache drive will 
become unavailable from time to time.

My question is.... Will random removal of the cache drive put the pool into a "degraded" 
state or affect the integrity of the pool at all? Additionally, how adversely will this effect 
"warm up"...
Or will moving the enclosure between machines with and without cache, just 
automatically work, and offer benefits when cache is available, and less 
benefits when it isn't?

Why bother with cache devices at all if you are moving the pool around? As you hinted above, the cache can take a while to warm up and become useful.

You should zpool remove the cache device before exporting the pool.


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