关于sybase数据库无法备份的问题

环境：win2000 server     sybase 12.5.0
故障现象：进行数据库备份的时候，出现系统资源不足的提示，然后备份就终止了，未发现服务器中毒的现象。
查看了backup.log文件，里面的错误提示如下：

Jun 05 09:30:48 2008: Backup Server: 4.172.1.1: The value of 'reserved pages threshold' has been set to 85%.
Jun 05 09:30:48 2008: Backup Server: 4.172.1.2: The value of 'allocated pages threshold' has been set to 40%.
Jun 05 09:30:48 2008: Backup Server: 4.41.1.1: Creating new disk file E:\ DATA_BAK80605.dat.
Jun 05 09:30:48 2008: Backup Server: 6.28.1.1: Dumpfile name 'ranch6008157085C8' section number 1 mounted on disk file 'E:\ DATA_BAK80605.dat'
Jun 05 09:30:49 2008: D00: SYBMULTBUF ERROR: Wait for i/o completion failed: State=105, Msg=系统资源不足，无法完成请求的服务?Jun 05 09:30:49 2008: Backup Server: 4.139.2.22: [105] The 'ReadFile' call failed for device 'E:\ DATA_BAK80605.dat' with error number 1450 (系统资源不足，无法完成请求的服务?. Refer to your operating system documentation for further details. Look for 'Jun 05 09:30:49 2008: D00: SYBMULTBUF ERROR: ' in the backup server errorlog for additional information from SYBMULTBUF.
Jun 05 09:30:49 2008: Backup Server: 4.58.1.1: Database branch60: 4 kilobytes DUMPed.

[[i] 本帖最后由 black_chr 于 2008-6-5 10:27 编辑 [/i]]