[one-users] System volumes created with no space

[Marius Rex]

I am using Opennebula 4.5.80 on Centos6 with KVM.  

/var/lib/one is a NFS mount, and has over a terabyte of free space available.  I have it shared between my administrative host and my KVM servers, but I cannot launch a VM as there is never any space seen as available in the systems datastore.

[oneadmin$] onedatastore list
  ID NAME                SIZE AVAIL CLUSTER      IMAGES TYPE DS       TM      
   0 system                0M -     snowman           0 sys  -        shared
   1 default             1.4T 100%  snowman           1 img  fs       shared
   2 files               1.4T 100%  snowman           0 fil  fs       ssh
  
All volumes are actually located on the same NFS volume:

[oneadmin]$ df -h /var/lib/one
Filesystem            Size  Used Avail Use% Mounted on
snowman03.of-1.uk.venda.com:/tank/systems/one
                      1.4T  946M  1.4T   1% /var/lib/one

Yet:

[oneadmin]$ onedatastore show 0
DATASTORE 0 INFORMATION                                                         
ID             : 0                   
NAME           : system              
USER           : oneadmin            
GROUP          : oneadmin            
CLUSTER        : snowman             
TYPE           : SYSTEM              
DS_MAD         : -                   
TM_MAD         : shared              
BASE PATH      : /var/lib/one//datastores/0
DISK_TYPE      : FILE                

DATASTORE CAPACITY                                                              
TOTAL:         : 0M                  
FREE:          : 0M                  
USED:          : 0M                  
LIMIT:         : -                   

PERMISSIONS                                                                     
OWNER          : um-                 
GROUP          : u--                 
OTHER          : ---                 

DATASTORE TEMPLATE                                                              
BASE_PATH="/var/lib/one//datastores/"
SHARED="YES"
TM_MAD="shared"
TYPE="SYSTEM_DS"

IMAGES         
[oneadmin]$ onedatastore show 1
DATASTORE 1 INFORMATION                                                         
ID             : 1                   
NAME           : default             
USER           : oneadmin            
GROUP          : oneadmin            
CLUSTER        : snowman             
TYPE           : IMAGE               
DS_MAD         : fs                  
TM_MAD         : shared              
BASE PATH      : /var/lib/one//datastores/1
DISK_TYPE      : FILE                

DATASTORE CAPACITY                                                              
TOTAL:         : 1.4T                
FREE:          : 1.4T                
USED:          : 945M                
LIMIT:         : -                   

PERMISSIONS                                                                     
OWNER          : um-                 
GROUP          : u--                 
OTHER          : ---                 

DATASTORE TEMPLATE                                                              
BASE_PATH="/var/lib/one//datastores/"
CLONE_TARGET="SYSTEM"
DISK_TYPE="FILE"
DS_MAD="fs"
LN_TARGET="NONE"
TM_MAD="shared"
TYPE="IMAGE_DS"

IMAGES         
5 


So I tried creating a new systems datastore on separate NFS mount as a test:

[oneadmin]$ cat template.ds 
NAME    = systems_nfs
TM_MAD  = shared  
TYPE    = SYSTEM_DS
BASE_PATH = /mnt/systems/one

[oneadmin]$ onedatastore create template.ds -c snowman

And I get another system volume with no space:

[oneadmin at snow-opennebula01 ~]$ onedatastore show 102
DATASTORE 102 INFORMATION                                                       
ID             : 102                 
NAME           : systems_nfs         
USER           : oneadmin            
GROUP          : oneadmin            
CLUSTER        : snowman             
TYPE           : SYSTEM              
DS_MAD         : -                   
TM_MAD         : shared              
BASE PATH      : /mnt/systems/one/102
DISK_TYPE      : FILE                

DATASTORE CAPACITY                                                              
TOTAL:         : 0M                  
FREE:          : 0M                  
USED:          : 0M                  
LIMIT:         : -                   

PERMISSIONS                                                                     
OWNER          : um-                 
GROUP          : u--                 
OTHER          : ---                 

DATASTORE TEMPLATE                                                              
BASE_PATH="/mnt/systems/one/"
SHARED="YES"
TM_MAD="shared"
TYPE="SYSTEM_DS"

IMAGES         

[oneadmin]$ df -h /mnt/systems/one
Filesystem            Size  Used Avail Use% Mounted on
snowman03.of-1.uk.venda.com:/tank/systems
                      1.4T  945M  1.4T   1% /mnt/systems


I am not sure what I am doing wrong.

Suggestions?

Marius Rex
mariusrex at venda.com
Senior linux Engineer
cell# 347.565.5037