Hi, it seems the C720 software has a filelimit of 2.2M objects imposed upon it, apparently netapp are due to increase this limit in a few months but in the meantime my C720 is using less than half its drive space so I want to get the max usage!
At the moment I've got 51% object hit rate and 26% byte rate.. not too bad but I suspect I can increase it. As I understand it, when the file limit is hit if it retrieves a new object it replaces one of the older objects on the disk. Now, you can set caching rules up to ignore objects with certain strings in the URL eg ? or cgi-bin.. my logic is that if you get this right you can prevent the cache from storing objects which are nearly always dynamic and therefore increase the hit ratio as the objects on the drive end up being more static .. theres a similar section for non-cacheable mime-types. Theres also a section for cookie cheats to allow you to cache static objects within cookies.
My question is has anyone spent time playing with these 3 fields and does anyone have some values which they have found to improve hit ratio that I can add to my (almost empty) config?
On a different thread, if you add a netcache license how do you delete it, "DISABLE" doesnt work, the only way I found was to reinstall the OS on the filer.
On -another- thread, I'm running WCCP and of course all web requests show the IP on the cache not the client itself.. is there a way to spoof the client's ip? I dont have a L4 switch btw, i run WCCP from a CAT6000 with MSFC.
Thanks
Steve
-- Stephen J. Wilcox Internet Manager, Opal Telecom http://www.opaltelecom.co.uk/ Tel: 0161 222 2000 Fax: 0161 222 2008