Have installed Memcache and it is being picked up by Moodle shown by the green tick but how do I get it to the 'ready' state (configured store instances) to be used as the default cache ?
Moodle 2.6
Internally hosted on Sles 11

Have installed Memcache and it is being picked up by Moodle shown by the green tick but how do I get it to the 'ready' state (configured store instances) to be used as the default cache ?
Moodle 2.6
Internally hosted on Sles 11
That means Moodle isn't able to connect to the memcache service, so either the configuration of the store is wrong, the memcache service isn't running, or there's some other issue like a firewall between the two (if they're running on different servers).
Have you configured it properly (e.g. pointed it at your memcache server?). Can we see the store settings?
This is the info given by tech support who set up the server
10.2.0.167:11211
Have been told memcached package has been installed
on the Moodle server the memcache php extension has been installed but not the memcached - tech support said they could not get that running on the Moodle server but that would make no difference as the package is on the other server. Can the memcache php extension run from the memcached package or does that need to be memcache?
Bit confusing to be honest
Either PHP module should be able to connect (the memcached one is much, much better but memcache also works). If you have command line access to your Moodle server and have telnet installed, you could try "telnet 10.2.0.167 11211". That should check whether your Moodle server can actually communicate with the memcache one.
Bingo! - telnet request refused, went back to tech support, turns out incorrect IP for listening on memcache server - all green ticks now
Are there any settings in config.php I need to be aware of or will Moodle automatically use memcache?
Thanks
Good stuff! You need to go to "edit mappings" down at the very bottom of the main cache configuration page and change the application cache to use your new memcache store, and that should be it.
Thanks for the help Michael, all working well - noticeably quicker now