The free space on `/var` on `tools-webgrid-04` is on the brink of collapsing causing frequent Shinken alerts:
```
scfc@tools-webgrid-04:~$ df -h
Dateisystem Größe Benutzt Verf. Verw% Eingehängt auf
/dev/vda1 7,6G 3,8G 3,5G 53% /
udev 7,9G 12K 7,9G 1% /dev
tmpfs 1,6G 2,2M 1,6G 1% /run
none 5,0M 0 5,0M 0% /run/lock
none 7,9G 0 7,9G 0% /run/shm
/dev/vda2 1,9G 1,8G 37M 98% /var
labstore.svc.eqiad.wmnet:/project/tools/project 40T 11T 30T 26% /data/project
labstore.svc.eqiad.wmnet:/project/tools/home 40T 11T 30T 26% /home
labstore.svc.eqiad.wmnet:/keys 960M 49M 911M 6% /public/keys
labstore1003.eqiad.wmnet:/dumps 44T 12T 33T 26% /public/dumps
labstore.svc.eqiad.wmnet:/scratch 7,3T 1,4T 6,0T 19% /data/scratch
scfc@tools-webgrid-04:~$
```
I have disabled the queue on this host with:
```
scfc@tools-bastion-01:~$ qmod -d webgrid-lighttpd@tools-webgrid-04.eqiad.wmflabs
scfc@tools-bastion-01.eqiad.wmflabs changed state of "webgrid-lighttpd@tools-webgrid-04.eqiad.wmflabs" (disabled)
scfc@tools-bastion-01:~$
```
In a few hours I will:
[ ] reschedule the jobs on that host (`qhost -h tools-webgrid-04 -j`, `qmod -rj`),
[ ] delete the instance,
[ ] recreate a new Precise instance,
[ ] copy `/etc/hosts`,
[ ] copy `/usr/local/bin/gridengine-mailer` (cf. T63160),
[ ] check that SGE recognizes the new host, and
[ ] reenable the queue (`qmod -e webgrid-lighttpd@tools-webgrid-04.eqiad.wmflabs`).