Looking around the Googles I find lots of different references to one script that basically greps out several parameters from zdb -Lbbbs (which is actually `zdb -PLbbbsk -U /data/zfs/zpool.cache` with a recent checkpoint on a busy truenas array that's been running for a while). Unfortunately those params don't apply to anything other than a brand-new system. Additionally, the zdb command takes several days to complete.
Is there a better/quicker/well-documented way to see the size of metadata on a zfs volume?
Is there a better/quicker/well-documented way to see the size of metadata on a zfs volume?