It is an absolute delight to see snapshot support for device-mapper finally going in to the stable kernel.I had to upgrade my company's core server to 2.6 fairly early on to solve
some serious disk I/O scheduling problems, and discovered that LVM2 not
only lacked snapshot support, but that this lack was undocumented. Even
better, LVM2 broke rather badly if the admin unwittingly tried to use the
snapshot feature - in my case, forcing a SERVER REBOOT in production time
to restore the logical volumes to a usable state.With this support in the kernel, my mail spool backups will be safe
again :-) . More importantly, LVM2 will be (at least from my perspective)
back up to the functionality of LVM1.
It sounds like LVM2 will be able to do snapshot volumes soon.
Posted by jshare at July 9, 2004 11:19 AM