Data store missing in front-end

Community Support
1

I have installed OpenNebula 5.4.6 frontend on an Ubuntu 16.04 machine and a KVM node on a Centos 7 machine.

the host has 4x6tb drives, we have formatted them as xfs and mounted them inside /var/lib/one/datastores/ as 100-104

/dev/sda4      xfs       5.4T   33M  5.4T   1% /var/lib/one/datastores/100
/dev/sdb1      xfs       5.5T   33M  5.5T   1% /var/lib/one/datastores/101
/dev/sdc1      xfs       5.5T   33M  5.5T   1% /var/lib/one/datastores/102
/dev/sdd1      xfs       5.5T   33M  5.5T   1% /var/lib/one/datastores/103

and monitor_ds.sh lists them:

$ /var/tmp/one/im/kvm-probes.d/monitor_ds.sh
DS_LOCATION_USED_MB=1366
DS_LOCATION_TOTAL_MB=50269
DS_LOCATION_FREE_MB=46328
DS = [
  ID = 0,
  USED_MB = 1366,
  TOTAL_MB = 50269,
  FREE_MB = 46328
]
DS = [
  ID = 100,
  USED_MB = 33,
  TOTAL_MB = 5653031,
  FREE_MB = 5652999
]
DS = [
  ID = 101,
  USED_MB = 33,
  TOTAL_MB = 5721127,
  FREE_MB = 5721095
]
DS = [
  ID = 102,
  USED_MB = 33,
  TOTAL_MB = 5721127,
  FREE_MB = 5721095
]
DS = [
  ID = 103,
  USED_MB = 33,
  TOTAL_MB = 5721127,
  FREE_MB = 5721095
]

however, only datastore 0 (46gb) is listed in Infrastructure->Hosts->Datastore. and running onehost lists only the first datastore:

$ onehost show 4
...
LOCAL SYSTEM DATASTORE #0 CAPACITY
TOTAL:                : 49.1G
USED:                 : 1.3G
FREE:                 : 45.2G

MONITORING INFORMATION
...

I have tried removing/readding the host, running onehost sync --force, pressing Update in the host’s page under datastores, formatting the drives as ext4 instead of xfs, chowning the mounted drives to oneadmin, rebooting node and frontend, manually creating datastores using the panel. to no avail.

is there any specific action I need to perform other than mounting the drives in /var/lib/one/datastores for them to show up in opennebula?

2

Hi,

Only local datastores show up in the host information panel, it probably datastores 100, 102 & 103 are SHARED.

3

okay, maybe I misunderstood what that does, what I need is a vm that has 20tb of disk space.
how can I create a vm that has multiple virtual disks, each inside one of the hard drives of the host?

given that the host has 4x6tb drives, and frontend is installed on another server (with a <50gb ssd drive)
I do not wish to use raid, and i don’t want to share the datastores from the host, only local machines (running on the said host) should be stored there.

also thanks for your reply.