域状态备份ntds 2089错误怎么处理

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NTDS Replication: Warning: 2089:Backup :This directory partition has not been backed up since at least the following number of days.
Directory partition:
CN=Schema,CN=Configuration,DC=service,DC=book,DC=com,DC=cn
'Backup latency interval' (days): 90
It is recommended that you take a backup as often as possible to recover from accidental loss of data. However if you haven't taken a backup since at least the 'backup latency interval' number of days, this message will be logged every day until a backup is taken. You can take a backup of any replica that holds this partition.
By default the 'Backup latency interval' is set to half the 'Tombstone Lifetime Interval'. If you want to change the default 'Backup latency interval', you could do so by adding the following registry key.
'Backup latency interval' (days) registry key:
System\CurrentControlSet\Services\NTDS\Parameters\Backup Latency Threshold (days)

前日服务器上出现以下告警信息，经分析发现这是一个目录分区已超过90天没有备份的告警信息，建议 我们备份以防止数据意外丢失。 或者通过修改注册表的方法来延长" 备份延迟间隔"的天数 。如果不做任何操作，那么这个告警信息将会每天出现一次。那么这个问题如何解决呢？

1、修改注册表键值以延长备份间隔的方法可以让告警信息暂时不出现，但是不能根除此信息

2、经过操作实验，我们发现可以通过ntbackup备份域活动目录系统状态的方法来消除这个报错信息的提示和出现。另外还可以通过ntbackup中的计划任务可以让它在指定时间去自动运行。

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