Delayed ASM PST heart beats on ASM disks in normal or high redundancy diskgroup, <<<< 在normal或high冗余度的磁盘组上的ASM磁盘被执行延迟ASM PST心跳检查。
thus the ASM instance dismount the diskgroup.By default, it is 15 seconds. <<<< 检查失败,ASM实例会dismount磁盘组,默认的超时时间为15秒。