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电梯直达

1楼 [收藏(0)] [报告]

发表于 2006-12-26 19:51 |只看该作者 |倒序浏览

--------------------------------------------------------------------------------\r\n \r\n有个客户提出他们们有台440 2快72G的盘原来的/export/home是在0号盘上的现在发现不够用现在先把这个1号盘的整个空间个他用下现在要把这个0号盘上该分区的内容导导 1号盘上 \r\n是不是在1号盘上建个文件系统然后用tar把分区的内容导过去就可以了?\r\n或者还是要先ufsdump再ufsrestore? \r\n\r\n\r\ntar把数据复制过去和用ufsdump ufsrestore复制文件系统后里面的数据有什么不一样?\r\n\r\n用ufsdump备份的文件系统再恢复导另外一个分区的时候这2个分区要一样大小的吗?

filtercai

小富即安

论坛徽章:: 0

2楼 [报告]

发表于 2006-12-26 21:56 |只看该作者

楼主错别字有点多。\r\n\r\n在1号盘上建个文件系统，用tar搞过去就能满足你的要求。\r\n\r\nufsdump/ufsrestore备份恢复的时候，两个分区可以不一样。\r\n\r\n至于tar过去和ufsdump/restore过去有啥区别，还真没有研究过。希望有高人能够解答一下。

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briangao

荣誉版主

论坛徽章:: 0

3楼 [报告]

发表于 2006-12-26 22:32 |只看该作者

If I were you I would use ufsdump/ufsrestore instead of tar. ufsdump backs up everything on a UFS including inodes while tar may have issues with special files such as device file , sparse file etc. In a simple term, you can think of ufsdump as a \"lower\" level backup while tar is a \"higher\" level backup. Also ufsdump can perform incrumental backup of a file system while tar can not. However, caution should be taken to perform a clean ufsdump of a file system. Ideally you should:\r\n\r\n1. Un-mount the file system\r\n2. Do a fsck on it\r\n3. ufsdump it \r\n\r\nYou have other choices such as mirror the partition,dd etc. But I don\'t think it needs to be that complicated if you just want to move your file system around.