2533362 - Can't start IQ with error backup device is busy for SAP IQ

IQ cannot start up with errors.

• IQ error in ***50.iqmsg.20170908103830 file : 
   
  I. 08/31 05:19:21. 0000000000 Exception Thrown from slib/s_trycatch.cxx:1671, Err# 34, tid 70 origtid 70
  I. 08/31 05:19:21. 0000000000    O/S Err#: 0, ErrID: 2071 (s_dbextexception); SQLCode: -1009086, SQLState: 'QSA86', Severity: 14
  I. 08/31 05:19:21. 0000000000 [20107]: Error opening DBFILE '/***/***50main001.iq'.
  -- (slib/s_trycatch.cxx 1671)   
    
• IQ error in ***50.srvlog file:
     
  I. 08/31 05:19:20. Starting database "id50" (/syb/***50/sybdb/***50.db) at Thu Aug 31 2017 05:19
  E. 08/31 05:19:21. Error: Error opening DBFILE '/***/***50main001.iq'.
  -- (slib/s_trycatch.cxx 1671)
  E. 08/31 05:19:21. Error opening DBFILE '/***/***50main001.iq'.
  -- (slib/s_trycatch.cxx 1671)
  I. 08/31 05:19:21. Database server shutdown due to startup error
  I. 08/31 05:19:21. Database server stopped at Thu Aug 31 2017 05:19  
      
• OS messages in /var/log/messages file:  
     
  Aug 31 05:17:12 ldd537a1 multipathd: 360050768018106cb3800000000003656: load table [0 1073741824 multipath 1 queue_if_no_path 0 1 1 service-time 0 1 1 8:80 1]
  Aug 31 05:17:12 ldd537a1 multipathd: 360050768018106cb3800000000003656: event checker started
  Aug 31 05:17:12 ldd537a1 multipathd: sdf [8:80]: path added to devmap 360050768018106cb3800000000003656
  Aug 31 05:17:12 ldd537a1 multipathd: sdh: add path (uevent)
  Aug 31 05:17:12 ldd537a1 multipathd: sdh: spurious uevent, path already in pathvec
  Aug 31 05:17:12 ldd537a1 multipathd: sdh: couldn't get asymmetric access state
  Aug 31 05:17:12 ldd537a1 multipathd: sdh: couldn't get asymmetric access state 

IQ 16.x on Red Hat Linux

Exception Thrown from oslib/hos_ion.cxx, Backup device is busy, Sybase IQ , KBA , BC-SYB-IQ , Sybase IQ , Problem