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From: | Vijay Bellur |
Subject: | Re: [Qemu-devel] [RFC PATCH 0/2] GlusterFS support in QEMU - v2 |
Date: | Sat, 21 Jul 2012 17:52:59 +0530 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:13.0) Gecko/20120615 Thunderbird/13.0.1 |
On 07/21/2012 01:59 PM, Bharata B Rao wrote:
We now specify the gluster backed image like this: -drive file=gluster:address@hidden:volname:image - Here 'gluster' is the protocol. - 'address@hidden' specifies the server where the volume file specification for the given volume resides. 'port' is the port number on which gluster management daemon (glusterd) is listening. This is optional and if not specified, QEMU will send 0 which will make libgfapi to use the default port. - 'volname' is the name of the gluster volume which contains the VM image. - 'image' is the path to the actual VM image in the gluster volume. Note that we are no longer using volfiles directly and use volume names instead. For this to work, gluster management daemon (glusterd) needs to be running on the QEMU node.
glusterd needs to be running on the server that is specified in 'address@hidden' option.
Scenarios --------- Base: QEMU boots from directly from image on gluster brick. Fuse mount: QEMU boots from VM image on gluster FUSE mount. Fuse bypass: QEMU uses gluster protocol and uses standard client volfile. Fuse bypass custom: QEMU uses gluster protocol and uses a minimal client volfile that just has client xlator. RPC bypass: QEMU uses just posix xlator and doesn't depend on gluster server.
For the Fuse mount, Fuse bypass and Fuse bypass custom scenarios, I assume a single local gluster brick is being used. Is this correct?
Thanks, Vijay
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