![ext3 快照支持](https://linux22.com/image/573968/ext3%20%E5%BF%AB%E7%85%A7%E6%94%AF%E6%8C%81.png)
ext3 文件系统是否支持快照?如果支持,是否可以使用没有 LVM 的直分区来实现快照?
“直分区”的一个例子如下:
- /dev/sda1 /启动 ext3
- /dev/sda2 / ext3
- /dev/sda3 交换
答案1
Unlike a number of modern file systems, Ext3 does not have native support for
snapshots - the ability to quickly capture the state of the filesystem at
arbitrary times, instead relying on less space-efficient volume level snapshots
provided by the Linux LVM. The Next3 file system is a modified version of Ext3
which offers snapshots support, yet retains compatibility to the EXT3 on-disk
format
引用: http://en.wikipedia.org/wiki/Ext3#Lack_of_snapshots_support
答案2
我会推荐R1Soft热拷贝用于拍摄文件系统的时间点快照。使用此功能,您可以拍摄干净的快照,而无需使用 LVM。它非常干净,应该可以满足您的要求。