Gee that's tough.

Posted Mar 22, 2007 5:55 UTC (Thu) by snitm (guest, #4031)
In reply to: Gee that's tough. by bronson
Parent article: The 2007 Linux Storage and File Systems Workshop

LVM2 Snapshots are quite bad. For starters they are done at the block-level whereas ZFS provides file-level snapshots (aka redirect on write). LVM2 snapshots don't scale well either; seeing as each snapshot imposes a copy out penalty because there isn't a shared exception store (aka LVM snapshot LV) for all snapshots of an origin LV.