求助，sybase备份失败的原因，最好说说解决思路 谢谢

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-- finance 备份消息
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Backup Server: 4.172.1.1: The value of 'reserved pages threshold' has been set to 85%.
Backup Server: 4.172.1.2: The value of 'allocated pages threshold' has been set to 40%.
Backup Server session id is: 30. Use this value when executing the 'sp_volchanged' system stored procedure after fulfilling any volume change request from the Backup Server.
Backup Server: 4.41.1.1: Creating new disk file /opt/sybase/ASE-15_0/install/test.bck.
Backup Server: 4.128.2.1: Failed to start multibuffering subprocesses for archive device '/opt/sybase/ASE-15_0/install/test.bck'. Look at the Backup Server error log or standard error for more information.
Error encountered by Backup Server. Please refer to Backup Server messages for details.


数据库分配了10G，已用1.3G，日志分配了2G，使用1G，sybase安装在Linux下，然后在window server下控制，现在突然无法备份了，可能是我设置自动备份，然后Linux系统的硬盘不足的时候报错了，不过现在我清理了一下Linux的空间，还是报这个错误，PS，Linux没有重启，我不熟Linux指令

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补充：除了备份数据库失败以外，数据库运行正常