'rescan-scsi-bus.sh -r' or 'scsi-rescan -r' deletes all the scsi devices causing the filesystems to go to read-only mode and system to hang

Issue

• rescan-scsi-bus.sh -r or scsi-rescan -r deletes all the scsi devices causing the file systems to go to read-only mode and system to hang. If the system is booting from scsi disk, mentioned commands would delete this disk as well which causes system to hang.