From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stuart D Gathman Date: Fri, 27 Jan 2012 12:51:41 -0500 Subject: [linux-lvm] New LVM2 release 2.02.89: Thinly-provisioned logical volumes In-Reply-To: <20120127025701.GB16767@agk-dp.fab.redhat.com> References: <20120127025701.GB16767@agk-dp.fab.redhat.com> Message-ID: <4F22E42D.5050401@bmsi.com> List-Id: To: lvm-devel@redhat.com MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit 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.)