Following the T150 procedure, add a new 200G disk to
Current partitions are:
$ df -h | grep /dev/mapper /dev/mapper/centos_dwellers-root 50G 50G 192M 100% / /dev/mapper/centos_dwellers-home 47G 83M 47G 1% /home
If we reinstall the server, it could be interesting to assign a minimal space to the OS (20 to 50 Gb) and to attach the 200G Docker disk.
| Status | Subtype | Assigned | Task | ||
|---|---|---|---|---|---|
| Resolved | dereckson | T170 Validate Dwellers operational state | |||
| Wontfix | dereckson | T165 Install OpenShift Origin v0.1 Alpha on Dwellers | |||
| Resolved | dereckson | T166 Add a new hard disk on Dwellers to host Docker images and data |
Stormshear. Done. Transcript available at P18. We have fully assigned our To of data to Dwellers and Ysul with this task.
Dwellers. Available as /dev/sdb, journalctl kernel log about the addition available as P19.
Nov 28 15:47:46 dwellers.nasqueron.org kernel: vmw_pvscsi: msg type: 0x0 - MSG RING: 1/0 (5)
Nov 28 15:47:46 dwellers.nasqueron.org kernel: vmw_pvscsi: msg: device added at scsi0:1:0
Nov 28 15:47:46 dwellers.nasqueron.org kernel: scsi 2:0:1:0: Direct-Access VMware Virtual disk 1.0 PQ: 0 ANSI: 2
Nov 28 15:47:46 dwellers.nasqueron.org kernel: sd 2:0:1:0: [sdb] 419430400 512-byte logical blocks: (214 GB/200 GiB)
Nov 28 15:47:46 dwellers.nasqueron.org kernel: sd 2:0:1:0: [sdb] Write Protect is off
Nov 28 15:47:46 dwellers.nasqueron.org kernel: sd 2:0:1:0: [sdb] Mode Sense: 61 00 00 00
Nov 28 15:47:46 dwellers.nasqueron.org kernel: sd 2:0:1:0: [sdb] Cache data unavailable
Nov 28 15:47:46 dwellers.nasqueron.org kernel: sd 2:0:1:0: [sdb] Assuming drive cache: write through
Nov 28 15:47:46 dwellers.nasqueron.org kernel: sd 2:0:1:0: Attached scsi generic sg2 type 0
Nov 28 15:47:46 dwellers.nasqueron.org kernel: sd 2:0:1:0: [sdb] Cache data unavailable
Nov 28 15:47:46 dwellers.nasqueron.org kernel: sd 2:0:1:0: [sdb] Assuming drive cache: write through
Nov 28 15:47:46 dwellers.nasqueron.org kernel: sdb: unknown partition table
Nov 28 15:47:46 dwellers.nasqueron.org kernel: sd 2:0:1:0: [sdb] Cache data unavailable
Nov 28 15:47:46 dwellers.nasqueron.org kernel: sd 2:0:1:0: [sdb] Assuming drive cache: write through
Nov 28 15:47:46 dwellers.nasqueron.org kernel: sd 2:0:1:0: [sdb] Attached SCSI disk
Procedured followed from http://bencane.com/2011/12/19/creating-a-new-filesystem-with-fdisk-lvm-and-mkfs/ and https://github.com/docker/docker/issues/3127:
Stop Docker and unmount former partitions
$ kill -9 `cat /var/run/docker.pid` $ cd /var/lib/docker/devicemapper/mnt $ umount ./*
Create and mount new partition
$ fdisk /dev/sdb # Creates new primary partition sdb1 $ pvcreate /dev/sdb1 $ vgextend centos_dwellers /dev/sdb1 $ lvcreate -l 100%FREE -n wharf centos_dwellers $ mkfs -t xfs /dev/centos_dwellers/wharf $ echo "/dev/mapper/centos_dwellers-wharf /wharf xfs defaults 1 2" >> /etc/fstab $ mount /wharf
Move Docker data
$ mv /data /wharf/data $ mv /var/lib/docker /wharf/docker $ ln -s /wharf/data /data $ ln -s /wharf/docker /var/lib/docker $ echo 'OPTIONS="--selinux-enabled -g /wharf/docker"' > /etc/sysconfig/docker
Restart Docker
$ systemctl start docker $ docker start ecstatic_heisenberg