Plesk 12.x / Linux :: Moved Vhost Location - Some Sites Not Working

I have a new DS with Plesk 12. I needed to change the default /var/www/vhosts location to a different physical drive, with more capacity.The larger disk is mounted as /disk1, so I created a folder here called vhosts, moved everything from the existing /var/www/vhosts directory, then I mounted /disk1/vhosts as /var/www/vhosts. See my fstab output below.

I then edited /etc/psa/psa.conf to update the VHOSTS location as per [URL] ...., and restarted Apache, MySQL and reconfigured domains.I thought all was OK, and that Plesk would just see /var/www/vhosts as normal, but I proceeded to migrate domains from another server to this box, and found that whilst some sites were working OK, many were not.

I was finding that existing config directives that used <Directory> were being ignored or seemed to disappear.All sites with .htaccess files stopped workingWe would get Apache / PHP errors saying that files could not be accessed as they were not in the allowed path for the domain. Plesk seems to be logging, reporting, and handling files as if they were in /disk1/vhosts, not the usual location. I have got sites working by adding /var/www/vhosts/ domain and /disk1/vhosts/domain to the PHP Settings page as allowed paths.

I have checked in the httpd.conf for each domain, and they all list the site document root as /disk1/vhosts/domain, not /var/www/vhosts/domain.It's as if Plesk is ignoring the change in /etc/psa/psa.conf.

All I want is for Plesk to think that /var/www/vhosts is the document root for all domains, and not do anything with /disk1/vhosts. I have many sites with hard coded links to included files in /var/www/vhosts/domain, and I dont want to have to rewrite them all to use /disk1/vhosts.

I have had to stick HTTP configuration directives on nearly every site, and add these entries to the allowed paths box, which obviously I should not have to do. Can any Plesk / Linux gurus tell me what I need to do to fix my problem, get sites working in /var/www/vhosts, and have Plesk allow .htaccess files to work without me having to add "AllowOverride All" to every domains??

# /etc/fstab
# Created by anaconda on Tue Oct 14 05:22:57 2014
#
# Accessible filesystems, by reference, are maintained under '/dev/disk'
# See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) for more info
#

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