Hi,
  The error log you extracted seem to be from the System Administrator
  GUI.  You sure you have the right log file for the backups?
Cheuk

>
> This problem is intensifying every week, my backups have been missing or
> failing.  All the error logs show TCP errors. I have an AIX server using
> v2.1.0.9.
>
> The following is an extract from the servers errorlog on/about the time
> all backup fail.
>
>
> 10/06/96   17:21:54  commtcp.c (1658): TcpRead: Error reading data, rc:
> 73
> 10/06/96   17:21:54  session.c (1576): sessRecvVerb: Error -50 from call
> to 'readRtn'.
> 10/06/96   17:21:54  cuadmin.c ( 233): cuGetAdmCmdResp: Received a
> communication read error: rc: -50
> 10/06/96   17:21:54  commtcp.c (1435): TcpOpen(): setsockopt(SO_SNDBUF):
> errno = 74
> 10/06/96   17:21:54  commtcp.c (1446): TcpOpen(): setsockopt(SO_RCVBUF):
> errno = 74
> 10/06/96   17:21:54  commtcp.c (1482): TcpOpen(): setsockopt failed on
> one or more options
> 10/06/96   18:29:44  anscrec.c ( 182): QueryRecordData: WmsSendMessage
> sending message QUERYLIST failed.  RC=505.
> 10/06/96   18:29:44  ANS8001E Internal error in this graphical user
> interface.  Try one of the following in the order listed:  1) close this
> window and reopen it  2) close this object and reopen it  3) shut down
> this graphical user interface and restart it  4) save dsmerror.log
> residing in the directory specified by DSMG_LOG and contact your service
> representative for assistance.|Graphical User Interface - Internal error
> 10/07/96   06:02:53  TcpRead: Error reading data, rc: 73
> 10/07/96   06:02:53  sessRecvVerb: Error -50 from call to 'readRtn'.
> 10/07/96   06:02:53  TcpOpen(): setsockopt(SO_SNDBUF): errno = 74
> 10/07/96   06:02:53  TcpOpen(): setsockopt(SO_RCVBUF): errno = 74
> 10/07/96   06:02:53  TcpOpen(): setsockopt failed on one or more options
> 10/07/96   06:35:34  commtcp.c (1658): TcpRead: Error reading data, rc:
> 73
> 10/07/96   06:35:34  session.c (1576): sessRecvVerb: Error -50 from call
> to 'readRtn'.
> 10/07/96   06:35:34  cuadmin.c ( 233): cuGetAdmCmdResp: Received a
> communication read error: rc: -50
> 10/07/96   06:35:34  commtcp.c (1435): TcpOpen(): setsockopt(SO_SNDBUF):
> errno = 74
> 10/07/96   06:35:34  commtcp.c (1446): TcpOpen(): setsockopt(SO_RCVBUF):
> errno = 74
> 10/07/96   06:35:34  commtcp.c (1482): TcpOpen(): setsockopt failed on
> one or more options
> 10/07/96   08:12:26  anscrec.c ( 182): QueryRecordData: WmsSendMessage
> sending message QUERYLIST failed.  RC=505.
> 10/07/96   08:12:26  ANS8001E Internal error in this graphical user
> interface.  Try one of the following in the order listed:  1) close this
> window and reopen it  2) close this object and reopen it  3) shut down
> this graphical user interface and restart it  4) save dsmerror.log
> residing in the directory specified by DSMG_LOG and contact your service
                                         ^^^^^^^^
                                     This env variable is set by
                                     the Sys Adm. GUI.
> representative for assistance.|Graphical User Interface - Internal error
>
>