:cache_dir => [
"rock /store/squid/rock-4096 20000 swap-timeout=200 slot-size=4096 max-size=3996",
"rock /store/squid/rock-8192 25000 swap-timeout=200 slot-size=8192 min-size=3997 max-size=8092",
:cache_dir => [
"rock /store/squid/rock-4096 20000 swap-timeout=200 slot-size=4096 max-size=3996",
"rock /store/squid/rock-8192 25000 swap-timeout=200 slot-size=8192 min-size=3997 max-size=8092",