The user can off- and online the cache device when there is less memory pressure, to fully restore its contents to L2ARC.
Understood. That's why everything I was talking about referenced the mirror zpool. I think what Emrion says should help.Wait I have a system disk without any mirror ok. then I have 2 mirror disks + 1 cache disk. I would like to detach the cache disk and create a mirror with the system disk without reinstalling the operating system.
zpool-remove(8) the cache diskI would like to detach the cache disk
zpool-attach(8) to system disk. This will create a mirror with the system disk.and create a mirror with the system disk