Oracle voting disk is taken offline around the time "SCSI error: return code = 0x000e0008" is logged

Issue

• /var/log/messages reports the similar to the following

  sd 4:0:0:42: SCSI error: return code = 0x000e0008
  

• and in the Oracle logs, one (or more) voting disks is considered not functional:

  [cssd(20024)]CRS-1613:No I/O has completed after 90% of the maximum interval. Voting file ORCL:LUN001 will be considered not functional in 19180 milliseconds
  2013-04-04 01:11:47.810
  [cssd(20024)]CRS-1604:CSSD voting file is offline: ORCL:LUN001; details at (:CSSNM00058:) in /oracle/app/11.2.0.3/grid/home_1/log/hostname/cssd/ocssd.log.