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LWN.net Weekly Edition for May 23, 2013
An "enum" for Python 3
An unexpected perf feature
LWN.net Weekly Edition for May 16, 2013
A look at the PyPy 2.0 release
Snapshot merge for the device mapper
Posted Nov 26, 2009 4:33 UTC (Thu) by msnitzer (subscriber, #57232)
The user must decide to merge a snapshot. Once that decision is made the user will initiate the merge using lvm2's lvconvert --merge $VG/$LV
But the actual merge cannot start until both the snapshot that will be merged and its origin device are closed.
So if either the snapshot or origin device are still open (e.g. the filesystem ontop is still mounted) the merge is deferred until the origin LV is next activated.
Posted Nov 26, 2009 6:10 UTC (Thu) by intgr (subscriber, #39733)
But needing to unmount the root file system seems pretty much like "taking
the system down" to me. In other words, nothing fundamentally changes, it
just got more convenient.
Posted Nov 26, 2009 12:10 UTC (Thu) by nye (guest, #51576)
Posted Dec 2, 2009 17:29 UTC (Wed) by sethml (subscriber, #8471)
Posted Feb 25, 2010 15:28 UTC (Thu) by budee (guest, #63877)
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