Installation guide

Chapter 20. Managing guests with xend
The xen d node control daemon performs certain system management functions that relate to virtual
machines. This daemon controls the virtualized resources, and xen d must be running to interact with
virtual machines. Before you start xen d , you must specify the operating parameters by editing the
xen d configuration file /etc/xen/xend-config.sxp. Here are the parameters you can enable or
disable in the xend-config.sxp configuration file:
T ab le 20.1. xen d con fig u rat io n p aramet ers
It em Descrip t io n
( con so le- limit ) Determines the console server's memory buffer
limit and assigns that limit on a per domain
basis.
( min - mem) Determines the minimum number of megabytes
that is reserved for domain0 (if you enter 0, the
value does not change).
( d o m0- cp u s) Determines the number of CPUs in use by
domain0 (at least 1 CPU is assigned by default).
( enab le- d u mp) If this is enabled, when a crash occurs Xen
creates a dump file (the default is 0).
( extern al- mig rat io n - t oo l) Determines the script or application that
handles external device migration. The scripts
must reside in the
/etc/xen/scripts/external-device-
migrate directory.
( lo g f ile) Determines the location of the log file (default is
/var/log/xend.log).
( lo g level) Filters out the log mode values: DEBUG, INFO,
WARNING, ERROR, or CRITICAL (default is
DEBUG).
( n et wo rk- scrip t ) D etermines the script that enables the
networking environment. The scripts must reside
in the /etc/xen/scripts/ directory.
( xen d - ht t p - server) Enables the http stream packet management
server (the default is no).
( xen d - un ix- server) Enables the UNIX domain socket server. The
socket server is a communications endpoint that
handles low level network connections and
accepts or rejects incoming connections. The
default value is set to yes.
( xen d - relo cat io n - server) Enables the relocation server for cross-machine
migrations (the default is no).
( xen d - un ix- p at h )
Determines the location where the xend-unix-
server command outputs data (default is
/var/lib/xend/xend-socket)
( xen d - po rt ) Determines the port that the http management
server uses (the default is 8000).
( xen d - relo cat io n - p o rt ) Determines the port that the relocation server
uses (the default is 8002).
⁠Chapt er 2 0 . Man aging guest s wit h xend
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