power cut -- shutdown the xen host and VM

http://www.tek-tips.com/viewthread.cfm?qid=880366

http://nam-en.apc.com/cgi-bin/nam_en.cfg/php/enduser/std_adp.php?p_faqid=1784&p_created=1010390400&p_sid=W2m3KsWh&p_lva=&p_sp=cF9zcmNoPTEmcF9zb3J0X2J5PSZwX2dyaWRzb3J0PSZwX3Jvd19jbnQ9MjgxJnBfcHJvZHM9MCZwX2NhdHM9JnBfcHY9JnBfY3Y9JnBfc2VhcmNoX3R5cGU9YW5zd2Vycy5zZWFyY2hfbmwmcF9wYWdlPTEmcF9zZWFyY2hfdGV4dD1tYW51YWxseSB1bmluc3RhbGwgcG93ZXJjaHV0ZQ

http://support.citrix.com/article/CTX119910


for the APC UPS s/w to work ... need modify default.cmd

this lead to a shutdown.bat file which use

xe
xe.exe -s 192.168.1.40 -u root -pw password vm-shutdown vm="ExchangeSVR"


if this doesn't run, I need look at the APC agent service account