[lvm-devel] [linux-lvm] New LVM2 release 2.02.89: Thinly-provisioned logical volumes

[Stuart D Gathman]

Long ago, Nostradamus foresaw that on 01/26/2012 09:57 PM, Alasdair G
Kergon would write:
> The basic idea
> --------------
> You create a logical volume known as the "thin pool" to hold the disk
> space you want to use inside your volume group.
>
> Then you create "thin" logical volumes which share the space in that pool.
>
> lvs and lvdisplay will tell you "how full" your pool is.
>
What is the purpose?  Does it allow snapshots that share space like in
Zumastor?  Do all the thin LVs start with a preconfigured image which
can then be modified?  (Can be done with snapshots - updating the
snapshots, but not the master, is efficient.  Presumably this way all
the snapshots can share space.)