>> I suggest ZFS at boot should (multi-threaded) scan every disk for ZFS
>> disks, and import the ones with the correct host name and with a import flag
>> set, without using the cache file. Maybe just use the cache file for non-EFI
>> disk/partitions, but without the storing the pool name, but you should be
>> able to tell ZFS to do a full scan which includes partition disk.
>
> Full scans are a bad thing, because they cannot scale. This is one
> good reason why zpool.cache exists.

What do you mean by cannot scale? Is it common to not use the majority
of disks available to a system?

If you "taste" all buses in parallel there should not be a scalability problem.

>
> What problem are you trying to solve?

It would be nice to be able to move disks around when a system is
powered off and not have to worry about a "cache" when I boot.
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