[zfs-discuss] "du -ksh ." taking hours to complete

Richard Laager rlaager at wiktel.com
Wed Nov 14 07:03:04 EST 2018

On 11/14/18 5:31 AM, Durval Menezes via zfs-discuss wrote:
> What is supposed to be the main advantage over L2ARC on SSD

The main advantage is that it is NOT a cache. All metadata is stored on
the special vdev (e.g. SSD) all the time, for certain. The L2ARC is a
cache (which is cleared on reboot), so metadata has to be read off the
spinning disks at least once.


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