is there any zfs tools command like xfs_db to trace zfs meta

[httaotao]

hello, I am not studying zfs. These days, I am curious zfs whether has the command to trace the zpool meta , like the xfs command xfs_db

the command likes that

xfs_db -c "agfl 0" -c "p" /dev/xxx

this command can trace the agfl in xfs. agfl is AG internel free list (AG in xfs like metaslab in zfs), which is a special b+ tree.

thanks.

[rincebrain]

Some kind of zpool debugging tool, you say.