Hardware (only running Squid): # cat /proc/cpuinfo | egrep -i xeon | uniq model name : Intel(R) Xeon(R) CPU E5405 @ 2.00GHz # cat /proc/cpuinfo | egrep -i xeon | wc -l 8 # free -m total used free shared buffers cached Mem: 32148 2238 29910 0 244 823 -/+ buffers/cache: 1169 30978 Swap: 15264 0 15264 # lsscsi [0:0:0:0] disk MAXTOR ATLAS15K2_73WLS JNZH /dev/sda [0:0:1:0] disk SEAGATE ST3300655LW 0003 /dev/sdb [0:0:4:0] disk SEAGATE ST3146807LC 0007 /dev/sdc [3:0:0:0] disk SEAGATE ST3300655SS 0004 /dev/sdd [3:0:1:0] disk SEAGATE ST3300655SS 0004 /dev/sde # fdisk -l | grep GB Disk /dev/sda: 73.5 GB, 73557090304 bytes Disk /dev/sdb: 300.0 GB, 300000000000 bytes Disk /dev/sdc: 146.8 GB, 146815737856 bytes Disk /dev/sdd: 300.0 GB, 300000000000 bytes Disk /dev/sde: 300.0 GB, 300000000000 bytes # lspci | grep -Ei 'sas|scsi' 04:00.0 SCSI storage controller: LSI Logic / Symbios Logic SAS1064ET PCI-Express Fusion-MPT SAS (rev 04) 06:02.0 SCSI storage controller: Adaptec ASC-29320LP U320 (rev 03) # uname -srm Linux 2.6.27.7 x86_64 Squid: # squid -v Squid Cache: Version 3.0.STABLE13 configure options: '--bindir=/usr/bin' '--sbindir=/usr/sbin' '--libexecdir=/usr/libexec' '--datadir=/usr/share/squid' '--sysconfdir=/etc/squid' '--libdir=/usr/lib' '--includedir=/usr/include' '--mandir=/usr/man' '--localstatedir=/var' '--enable-async-io' '--with-pthreads' '--enable-xmalloc-statistics' '--enable-storeio=aufs' '--enable-removal-policies' '--enable-err-languages=English Portuguese' '--enable-linux-netfilter' '--disable-wccp' '--disable-wccpv2' '--disable-ident-lookups' '--enable-snmp' '--enable-kill-parent-hack' '--enable-delay-pools' '--enable-follow-x-forwarded-for' '--with-large-files' '--with-filedescriptors=65536' 'CFLAGS= -march=native' 'CXXFLAGS= -march=native' # cat /etc/squid/squid.conf | grep -E cache_'mem|dir'\ cache_mem 8192 MB cache_dir aufs /var/cache/proxy/cache1 102400 16 256 cache_dir aufs /var/cache/proxy/cache2 102400 16 256 cache_dir aufs /var/cache/proxy/cache3 102400 16 256 cache_dir aufs /var/cache/proxy/cache4 102400 16 256 cache_dir aufs /var/cache/proxy/cache5 102400 16 256 cache_dir aufs /var/cache/proxy/cache6 102400 16 256 cache_dir aufs /var/cache/proxy/cache7 102400 16 256 cache_dir aufs /var/cache/proxy/cache8 102400 16 256 # cat /etc/fstab | grep proxy /dev/vg00/cache /var/cache/proxy ext3 defaults 1 2 Yes, I know, LVM, ext3 and aufs are bad ideas... I'm particularly interested in a better cache_dir configuration (maximizing disk's usage) and the correct cache_mem parameter to this hardware. (and others possible/useful tips) Thanks, -- Herbert