Solution : https://service.sap.com/sap/support/notes/1532458 (SAP Service marketplace login required)
Key words : 
/dev/shm/                                => total 264                               -rw-r--r--  1 root root 262144 nov  8 14, vhostmd metrics-disk                            xe sr-create type=shm, xe pool-param-set uuid=$pool_uuid \, location=/dev/shm shared=true, -config param-key=vhostmd-enabled                                => true, /dev/shm based disk file, symptom running sap products inside, citrix xenserver virtual machine requires, zypper install vm-dump-metrics 2, xe pool-list --minimal
Related Notes : 
       
| 1519590 | Virtualization with Citrix XenServer | 
| 1102124 | SAPOSCOL on Linux: Enhanced function | 
| 171356 | SAP software on Linux: General information |