As far as I can tell, dataset1001 sends dumps data over to labstore1003 using rsync (via a cron job)
root@dataset1001:/home/madhuvishy# crontab -l ... 50 3 * * * /usr/local/sbin/labs-rsync-cron.sh labstore1003.eqiad.wmnet /data/xmldatadumps/public ...
However labstore1003 also exports /srv/dumps in RW mode to dataset1001:
From cat exports on labstore1003
/srv/dumps -rw,sec=sys,no_subtree_check,no_root_squash 22.214.171.124 126.96.36.199
And from the mounts on dataset1001
/mnt/dumps labstore1003.eqiad.wmnet:/dumps nfs4 rw,noatime,vers=4.0,rsize=1048576,wsize
This looks like old cruft that is not used anymore, but I'm unsure if that's really the case. @ArielGlenn, if you have any context, let us know. If it is indeed cruft, we should probably remove this export. Thanks!