[Discuss] lvm snapshot cloning
Edward Ned Harvey
blu at nedharvey.com
Tue Oct 25 07:53:23 EDT 2011
> From: discuss-bounces+blu=nedharvey.com at blu.org [mailto:discuss-
> bounces+blu=nedharvey.com at blu.org] On Behalf Of
>
> Other systems, chain snapshots so that at any time, only one snapshot is
> receiving COW data, and the subsequent snapshots only forward reference.
Also, other systems don't make you pre-allocate disk space for snapshot
usage, and other systems don't automatically destroy your snapshot if you
run out of pre-allocated space. LVM snapshot is crap compared to other
systems - but if you want to make a single snapshot so you can dump or tar
your ext3/4 filesystem in a consistent state or something, then it's good
for that purpose. And not much else.
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