EMC Networke备份故障，磁盘空间写满，导致备份任务不能进行？

EMC Networker V8.2.3.1 管理软件，备份空间满，引发的问题
在备份设备 DD2500
在备份过程中，磁盘空间写满，后导致备份任务不能进行，手动删除备份文件，备份任务依然不能继续。

报警日志：
Space usage in Data Collection has exceeded 90% threshold.

Alert ID:272
Name:SpaceOver90Percent
Message:Space usage in Data Collection has exceeded 90% threshold.
Severity:CRITICAL
Class:Filesystem
Date:03/17/19 13:31:11
Object ID:FilesysType=2
Event ID:EVT-SPACE-00004
Additional Info:SpaceUsage(%)=0
Status:Cleared
Description:Space usage has exceeded 90% of the total capacity. Lack of space can

result in missing important logs or loss of file system functionality.
Action:If it is in root or /ddvar, remove unwanted files to free up some space. If

it is in active tier, remove unwanted files and start file system cleaning or add

storage. If it is in archive tier, remove unwanted files and start space

reclamation or add storage.