Copy large backup file to external drive

[nehal_serpa]

I am using SBS 2003 Prem. with SP1. I got some problems copying large backup files to external drives. Prior to this, I was having problem with the XCOPY but switched to Robocopy and it was working fine for a while. I guess the backup size is increased so now it is not able to copy anymore, below is the output from robocopy

------------------------
New File 46.9 g HI HD Data Backup
2007-05-21.bkp
94.5%
2007/05/23 10:55:09 ERROR 1450 (0x000005AA) Copying File I:\NTBackup\HI HD Data
Backup 2007-05-21.bkp
Insufficient system resources exist to complete the requested service.
Waiting 30 seconds... Retrying...
New File 46.9 g HI HD Data Backup
2007-05-21.bkp
94.5%
2007/05/23 11:19:04 ERROR 1450 (0x000005AA) Copying File I:\NTBackup\HI HD Data
Backup 2007-05-21.bkp
Insufficient system resources exist to complete the requested service.
Waiting 30 seconds... Retrying...
New File 46.9 g HI HD Data Backup
2007-05-21.bkp
94.4%
2007/05/23 11:43:15 ERROR 1450 (0x000005AA) Copying File I:\NTBackup\HI HD Data
Backup 2007-05-21.bkp
Insufficient system resources exist to complete the requested service.
Waiting 30 seconds... Retrying...
--------------------------------------

Can anyone tell me how to solve this issue? Thanks

[.:MUNDITO:.]

Could you please tell us what is the file format of the USB drive? Whether it is FAT, FAT32 or NTFS?

[nehal_serpa]

The file format is NTFS and its not the USB drive but the problem happens even if I copy local drivers with larger than 45-50gb files. When I looked into it then it seems that PAE extensions are enabled by default on 2003 to support hardware enforced DEP.

[nehal_serpa]

It seems that a server restart has fixed it, my kernel paged and non paged memory shown in the task manager went right down and the robocopy worked. Also, it seems that we cant get away from this "reboot the server every few weeks" problem with the server grabbing more free memory the longer it is up.