INTERNAL: "Error reading data for backup" or "Insufficient System Resources" (4042478)

Date: 25/09/06
NV Version: All
OS Version: Windows 2000, 2003
Application version: N/A
Plugin version: N/A

Description:
This is an INTERNAL FAQ describing possible solutions to the error messages. These Microsoft knowledgebase articles should be applied with care.

Symptoms:
For file system plugins > v6 it reports backup warning "x items and their contents could not be backed up". The additional log context will show
E:\U\ARB\PERSKST\PERSK_060401.15 : Error reading data for backup
Older file system plugins report
E:\U\ARB\PERSKST\PERSK_060401.15 : "Insufficient system resources exist to complete the requested service"

This error can also occur for other plugins, for example Oracle Online on Windows. They will usually report a similar error.

Most of the time, the error seems to occur for large files, or after having backed up large files. It does not seem to be connected to the actual load on the system or its processing power, but