ScaleIO Software: Cannot boot  Linux SDC  when scini devices added to /etc/fstab

           

   Article Number:     517021                                   Article Version: 3     Article Type:    Break Fix 
   

 


Product:

 

ScaleIO Software,ScaleIO Software 2.0,ScaleIO Product Family,ScaleIO Ready Node Series

 

Issue:

 

 

    
    The customer presented ScaleIO "scini" devices  as multipath devices in their RH server using KB: 000484523   
    When the customer added the (scini)disk device entry in the /etc/fstab  and  rebooted the host, the server will not reboot.   
    If the customer removes the fstab entry, the system boots up  and the 'multipath -ll' entry shows the  scini disks.
                                                           

 

 

Cause:

 

 

The _netdev option is required when mounting Dell EMC SIO devices at boot time.   
    This is because the  network needs to be up so the host can access the SIO volumes.   
    The _netdev option  prevents the filesystem from being mounted until the network is available.
                                                           

 

 

Resolution:

 

 

   
    SIO devices should be mounted with _netdev option in /etc/fstab to permit boot-time fsck.    
   
   
    Linux Man entry for _netdev:   
    _netdev: The filesystem resides on a device that requires network access   
    (used to prevent the system from attempting to mount these file systems until the network has been enabled on the system).