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Claim space on Stormshear datastore
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Storage on Stormshear

When we created extra partition for ''arcology'' ZFS pool on Ysul and ''wharf'' LVM group on Dwellers, we have underestimated the overhead of the VMs.

Ysul-Main hard disk400 G
YsulT150ZFS arcology100 G
Dwellers-Main hard disk100 G
DwellersT166Wharf for Docker200 G
Total..800 G

But we have some overhead. For example, it seems Ysul has snapshots enabled (I think this were a safety measure to handle T293), as we have this:
-rw------- 1 root root 94.3G Aug 2 13:07 Ysul-000001-delta.vmdk
-rw------- 1 root root 3.5G Apr 8 19:08 Ysul-Snapshot1.vmsn
-rw------- 1 root root 7.8G Aug 2 13:03 Ysul-zfspool-000001-delta.vmdk

Ysul arcology

We don't need so much space, as we currently use it for jails and poudriere.

$ zpool list
arcology  99.5G  17.0G  82.5G      -         -    17%  1.00x  ONLINE  -


  • Destroy the 100G arcology ZFS pool and recreate it on a 25G storage
  • Disable snapshot on Ysul - I totally know it's a good idea as it's also a dev machine, and so not totally instrumentable, but we don't have the hard disk to do that. A proper backup strategy and a Tahoe grid is needed.

Event Timeline

dereckson created this task.Aug 2 2015, 13:14
dereckson claimed this task.
dereckson raised the priority of this task from to High.
dereckson updated the task description. (Show Details)
dereckson added a project: Servers.
dereckson added a subscriber: dereckson.

I'm deleting Ysul snapshot and consolidating it into the machine.

Operation is at 19%.

More than 100 GB have been recovered.

$ ssh df -h
Filesystem   Size   Used Available Use% Mounted on
VMFS-5     924.0G 808.0G    116.0G  87% /vmfs/volumes/datastore1
dereckson moved this task from Backlog to Working on on the Servers board.Aug 7 2015, 11:13
dereckson closed this task as Resolved.Nov 9 2015, 23:23

Situation is stable since August, so we can consider space has been successfully reclaimed.