rman备份失败,恢复区已经调到460G了,备份的时候还报空间不足。
恢复区中备份集才使用了75%,备份集占恢复区75%是一个临界点吗?超过75%就不终止备份?
channel ch1: backup set complete, elapsed time: 00:00:04
channel ch2: finished piece 1 at 20-MAR-16
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