On Mon, 7 Nov 2011 16:21:59 -0500, "Nicolas Ross" <rossnick-lists@xxxxxxxxxxx> wrote: >> | Is it possible to make snapshots in a *cluster* LVM environment ? >> | Last time I >> | read the manual it was not possible. >> >> I highly suspect Nick was talking about _hardware_ snapshotting that is >> supported by some SANs, _not_ our clustered snapshot software. > > You are right, I don't beleive our enclosure support hw snapshot. It's not > that smart... > > But in our case, I don't see what good a snapshot would do. > > A little bit more on our client's process. They work on documenting and > publishing documents and images to a so-called "work version" named > doctravail/ (in french ;-). Once they decides a document, image, whatever > is > good for production it is copied into the so-called "curent version" > directory named doccourant/. > > On theire web sites, there is 3 databases used in rotation, doca, b and c. > > At night, data is fetch from their intranet database and pumped into the > next to be used database, and then the data from the doccourant/ is > rsync-ed > into the corresponding document directory of the web server. > > So I during the night, data from the doctravail/ directory doesn't move. > It > won't help if I use a snapshot of that volume to rsync to the destination. > I > think... > It will help to avoid expensive DLM locking if yoo mount the snapshot with local locking. > Regards, > > -- > Linux-cluster mailing list > Linux-cluster@xxxxxxxxxx > https://www.redhat.com/mailman/listinfo/linux-cluster -- Linux-cluster mailing list Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster
