Thanks a lot Gail.
S:\LOG\ABC_Log_508.ldf: Operating system error 112(There is not enough space on the disk.) encountered.
To allow recovery to succeed, the log file 'ABC_log5' has been expanded beyond its maximum size. After recovery completes, you should either increase the size of the log file in the database or schedule more frequent backups of the log (under the full or bulk-logged recovery model).