Other zfs to exfat rsync slow on lenovo laptop

freebsd 15p6 on lenovo x230 8g ram i5
zfs drive in usb3 slot on left external spinning drive 5t wd elements /zerg
exfat ssd 4t drive on right in usb2 multiport expander with mouse keyboard in 2 of other 4 slots /zoltar

Code:
root@laptop-thinkpad:~ # d

Filesystem    Size    Used   Avail Capacity  Mounted on
/dev/ada0a    285G    145G    117G    56%    /
devfs         1.0K      0B    1.0K     0%    /dev
zerg          5.3T    612G    4.7T    11%    /zerg
/dev/da1p2    3.8T    4.6G    3.8T     0%    /zoltar


root@laptop-thinkpad:~ # mount
/dev/ada0a on / (ufs, local, soft-updates, journaled soft-updates)
devfs on /dev (devfs)
zerg on /zerg (zfs, local, nfsv4acls)
/dev/da1p2 on /zoltar (fusefs)



g@laptop-thinkpad:~ $

 rsync -rDP --inplace --size-only /zerg/ /zoltar/

speed 4MB/s

any suggestion to speed this up?
 
Back
Top