ORA-15096: lost disk write detected
Cause: A failure either by disk hardware or disk software caused a disk write to to be lost, even though ASM received acknowledgement that the write completed. Alternatively, a clustering hardware failure or a clustering software failure resulted in an ASM instance believing that another ASM instance had crashed, when in fact it was still active.
Action: The disk group is corrupt and cannot be recovered. The disk group must be recreated, and its contents restored from backups.
ORA-15096：这是一个在ASM中对磁盘资源的错误。它通知您，在某次写入磁盘的尝试中，没有读取磁盘，而是检测出了写丢失/丢失的情况。
1. 失败的磁盘（执行Scsi勒索后）
2.网络I/O错误（例如连接超时）
3.服务器级网络故障
1.确定可能的原因，例如磁盘故障，网络I/O错误等。
2.根据原因找到正确的解决方案，例如更换磁盘，更改服务器网络配置等。
3.以安全模式重启ASM实例。
4.执行bin / dbcnfig.sh检查脚本，其中会进行磁盘群组检查，并修复受影响的存储相关内容。
5.最后，重新启动ASM实例，直至它以正确的方式完成启动。