True, you could have a way to evict all the l2arc data from the arc that belongs to the device you're failing over.
On Fri, Sep 11, 2015 at 10:20 AM, Andriy Gapon <[email protected]> wrote: > On 11/09/2015 16:47, George Wilson wrote: > > The ideas was that only one pool could own it so that failover would be > > possible and the cache device would follow that pool. It also would be > > required for persistent l2arc. > > > > However, it should be possible to create an independent l2arc which never > > fails over but can be added to multiple pools. It would not be a trivial > > implementation but seems doable. > > Well, given that the cache device has just a cache of data it can easily > follow > its pool by simply discarding the cached data. > Loss of a cache device is harmless even now. > > -- > Andriy Gapon > >
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