Overall changes needed in these files –
httpd.conf ### mapping change from <old path> to <new path>
invalidator.pqrs.conf
www.website_name.conf
www.website_name.any ###this website_name.any file would have been included in dispatcher.any file.
common.conf
Then restart apache.
Note:
In order to find which files contain the old path </xyz/sites/> in location: /etc/pqrst, do this:
grep -rn '/xyz/sites' /etc/pqrst
And if the above command returns a lot of files, and you need a particular file to see - say < file_name.xyz>, do this:
grep -rn '/u01/sites' /etc/pqrst |grep file_name.xyz