Hello, I need to have 2 squid boxes(squid-bak1 & 2) cache the content of 1 squid cache(squid-mstr) on a different location, I'm concerned that if we loose connectivity to squid-mstr for more than 1 day the squid-bak1 and 2 will loose their content. Is the "refresh_pattern" option the best way to assure that if the squid-bak1 & 2 boxes loose connectivity to the master they don't start to erase their content???? Basically I would like to keep the content for 3 days before squid begins to erase its content due to no new updates. Thanks in advance for any help.