We're trying to reduce the total number of NFS clients, and unmounting /data/project from all hosts except the ones that absolutely need it (which would be the mw* hosts and the varnishes, perhaps?) would help.
Status as of Feb 4th 2016
```
root@deployment-salt:~ # salt -v --out=txt '*' cmd.run "df -t nfs 2>/dev/null|grep -v ^Filesystem|cut -d\ -f7"
Executing job with jid 20160204193722579006
-------------------------------------------
deployment-bastion.deployment-prep.eqiad.wmflabs: /data/project
deployment-db2.deployment-prep.eqiad.wmflabs: /data/project
deployment-poolcounter01.deployment-prep.eqiad.wmflabs: /data/project
deployment-memc03.deployment-prep.eqiad.wmflabs: /data/project
deployment-memc02.deployment-prep.eqiad.wmflabs: /data/project
deployment-db1.deployment-prep.eqiad.wmflabs: /data/project
deployment-memc04.deployment-prep.eqiad.wmflabs: /data/project
deployment-fluorine.deployment-prep.eqiad.wmflabs: /data/project
deployment-upload.deployment-prep.eqiad.wmflabs: /data/project
deployment-kafka02.deployment-prep.eqiad.wmflabs: /data/project
deployment-salt.deployment-prep.eqiad.wmflabs: /data/project
```