I have HDR running between two servers on SCO Open Server 5.0.5 and Informix Dynamic Server Version 7.30.UC2 for some time now with no problems. This morning I have started to consistently get the below message in the secondary message file :

14:21:03 Rollforward of log record failed. iserrno = 0
14:21:03 Log Record: log = 66285, pos = 72f610, type = OLDRSAM:CHALLOC(51), tra
ns = 38
14:21:03 Rollforward of log record failed. iserrno = 0
14:21:03 Log Record: log = 66285, pos = 72f610, type = OLDRSAM:CHALLOC(51), tra
ns = 38
14:23:41 Rollforward of log record failed. iserrno = 0
14:23:41 Log Record: log = 66285, pos = f933b0, type = OLDRSAM:CHALLOC(51), tra
ns = 41
14:23:41 Rollforward of log record failed. iserrno = 0
14:23:41 Log Record: log = 66285, pos = f933b0, type = OLDRSAM:CHALLOC(51), tra
ns = 41

Please help in understanding what the problem!
Thanks!