[libvirt] [PATCH 2/2] docs: add page about virtlockd setup
Eric Blake
eblake at redhat.com
Mon Feb 16 17:46:59 UTC 2015
On 02/16/2015 04:59 AM, Daniel P. Berrange wrote:
> Introduce some basic docs describing the virtlockd setup.
>
> Signed-off-by: Daniel P. Berrange <berrange at redhat.com>
> ---
> docs/locking-lockd.html.in | 160 +++++++++++++++++++++++++++++++++++++++++++++
> docs/locking.html.in | 2 +-
> docs/sitemap.html.in | 4 ++
> 3 files changed, 165 insertions(+), 1 deletion(-)
> create mode 100644 docs/locking-lockd.html.in
> + <p>
> + The virtlockd daemon is a single purpose binary which
> + focus exclusively on the task of acquiring and holding
s/focus/focuses/
> + locks on behalf of running virtual machines. It is
> + designed to offer a low overhead, portable locking
> + scheme can be used out of the box on virtualization
> + hosts with minimal configuration overheads. It makes
> + use of the POSIX fcntl advisory locking capability
> + to hold locks, which is supported by the majority of
> + commonly used filesystems
s/$/./
> + </p>
> +
> + <h2><a name="sanlock">virtlockd daemon setup</a></h2>
> +
> + <p>
> + In most OS, the virtlockd daemon itself will not require
> + any upfront configuration work. It is installed by default
> + when libvirtd is present, and a systemd socket unit is
> + registered such that the daemon will be automatically
> + started when first required. With OS that predate systemd
> + though, it will be neccessary to start it at boot time,
s/neccessary/necessary/
> + <p>
> + The default behaviour of the lockd plugin is to acquire locks
> + directly on the virtual disk images associated with the guest
> + <disk> elements. This ensures it can run out of the box
> + with not configuration, providing locking for disk images on
s/not/no/
--
Eric Blake eblake redhat com +1-919-301-3266
Libvirt virtualization library http://libvirt.org
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