From mboxrd@z Thu Jan 1 00:00:00 1970 From: Chad Walstrom Subject: Re: [linux-lvm] has anyone used LVM in a HA cluster? Message-ID: <20020509193503.GD2472@wookimus.net> References: Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="eheScQNz3K90DVRs" Content-Disposition: inline In-Reply-To: Sender: linux-lvm-admin@sistina.com Errors-To: linux-lvm-admin@sistina.com Reply-To: linux-lvm@sistina.com List-Help: List-Post: List-Subscribe: , List-Unsubscribe: , List-Archive: Date: Thu May 9 14:38:02 2002 List-Id: To: linux-lvm@sistina.com --eheScQNz3K90DVRs Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, May 09, 2002 at 09:54:40AM -0700, Au, Richard wrote: > I'm wondering if anyone has used LVM in a high-availibility cluster > where two servers are connected to shared storage (the physical > volumes). If so, which cluster solution did you use? Will there be > problems if the logical volumes are visable to both servers, even if > only one of them has them mounted? Thanks! Doing something like this w/o having servers participate in some sort of locking or journaling scheme is somewhat scary. You'd have to be pretty careful on how you access a shared physical storage system in this manner. I believe Sistina's GFS project might be more to your liking. IIRC, it's a clustered, journaling filesystem designed explicitly for your setup. It's a bonus that it is also GPL. Check it out at: http://www.sistina.com/products_gfs.htm. The latest GPL version of GFS seems to be 4.1.1 (as present on ftp://ftp.sistina.com/pub/GFS). I'm not sure, but I'm assuming from the info available on the website that GFS 5.0.1 is commercially available as well. Is Sistina doing something similar to TrollTech w/licensing GFS, then? Or are they just behind the ball as far as releasing the newer versions to the ftp site? (I'm assuming the former.) --=20 Chad Walstrom | a.k.a. ^chewie http://www.wookimus.net/ | s.k.a. gunnarr --eheScQNz3K90DVRs Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.6 (GNU/Linux) Comment: For info see http://www.gnupg.org iD8DBQE82s9nDMcLGCBsWv0RAo2mAKDU1jdxxoA71wI+8M6NiSTPgXC8UACgqvyg yz8XlpQFBG8DghnVCDxiEhQ= =pPDz -----END PGP SIGNATURE----- --eheScQNz3K90DVRs--