WIN32 13: The data is invalid

Hi,

I am receiving below error  on our backup servers while backing up some log files.Below are details of the same.

Server

Operating system:Windows server 2008 Enterprise

Veritas Netbackup Version 6.5.6.

 

Client 1:

6/19/2015 6:14:34 PM - Error bpbrm(pid=9196) from client INDELGG6NMS: ERR - failure reading file: E:\abc\10_21_65_11.log (WIN32 13: The data is invalid. )
6/19/2015 6:15:02 PM - Error bpbrm(pid=9196) from client INDELGG6NMS: ERR - failure reading file: E:\abc\10_21_65_14.log (WIN32 13: The data is invalid. )
6/19/2015 6:15:41 PM - Error bpbrm(pid=9196) from client INDELGG6NMS: ERR - failure reading file: E:\abc\10_21_65_38.log (WIN32 13: The data is invalid. )
6/19/2015 6:15:59 PM - Error bpbrm(pid=9196) from client INDELGG6NMS: ERR - failure reading file: E:\abc\10_21_65_48.log (WIN32 13: The data is invalid. )
6/19/2015 6:16:10 PM - Error bpbrm(pid=9196) from client INDELGG6NMS: ERR - failure reading file: E:\abc\10_21_65_59.log (WIN32 13: The data is invalid. )
6/19/2015 6:16:23 PM - Error bpbrm(pid=9196) from client INDELGG6NMS: ERR - failure reading file: E:\abc\10_21_65_9.log (WIN32 13: The data is invalid. )

client 2:

/20/2015 8:59:09 AM - begin writing
6/20/2015 9:04:06 AM - Error bpbrm(pid=30220) from client INDELHLDNMS01: ERR - failure 

reading file: E:\abc\10_21_16_17.log (WIN32 13: The data is invalid. )
6/20/2015 9:04:08 AM - end writing; write time: 00:04:59
the requested operation was partially successful(1)

Both the clients are windows having Operating system: Windows server 2012 R2.I have below questions.

1. Kindly let us know the compatible clients for veritas netbackup 6.5.6 having  Operating system:Windows server 2008 Enterprise

2. We also have others servers with same operating system which are also configurted as clients in backup.Their backup is working fine.Then why in above case backup is failing.

3.We also have another backup server in our envirement whose version is 6.5.6 having operating system Win2k3 SP2.There also we have clients having operating system Windows server 2012 R2.All backups on this server also gets succeeded except some with similar error as stated above.

I want to know why this backup is failing and also let us know the compatible clients for Windows server 2003 SP2 having veritas 6.5.6.

 

Thanks