Re: [CentOS] merge an lvm snapshot back

On Sun, Apr 13, 2008 at 11:54:36PM -0700, John R Pierce alleged:

Garrick Staples wrote:

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On Sun, Apr 13, 2008 at 11:21:28PM -0600, Joseph L. Casale alleged:

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Use rsync to copy the changes to the lv?

That would be only be possible if the lv had an fs that rsync and the os under rsync understood:) If these are exported as block devices into xen vm's or as iscsi targets for example it gets trickier.

rsync doesn't have fs-specific knowledge. It just reads and writes files. Put another way, what fs does rsync not undestand?

a raw block device, as they said.

Well, I was thinking about vm and such, assuming at some point there was an OS reading the filesystem tht can run rsync. But I concede the point, it definitely makes things tricky.