>> The company I'm working for uses squid for caching and access control. >> We use 3 Dell 2650s for squid, with a 3 disk (U320 10K RPM) RAID-0 >> (stripe set) for the cache partition on each server. > >What OS? > >It's recommended to split that stripe into separate drives. Squid does not benefit from striping. Squid automatically splits the load on the available >>drives (cache_dir), so striping only makes long term maintenance of your system harder as any change to the cache would mean loosing the whole cache. The OS is Linux 2.4.29 (Debian 3.0_R4) What is the recommended size of each cache_dir (disk)? Squid Cache: Version 2.5.STABLE7 configure options: --bindir=/usr/sbin --sbindir=/usr/sbin --localstatedir=/var/spool/squid --sysconfdir=/etc/squid --libexecdir=/usr/lib/squid --enable-linux-netfilter --enable-cache-digests --enable-poll --enable-delay-pools --enable-underscores --enable-useragent-log --enable-storeio=diskd,ufs --enable-snmp >> What file system is recommended for use on the cache partitions? >> We have tried with ext2, xfs and reiserfs 3.6. >> >> First we thought using ext2 (no additional configuration) would be a >> good idea, since there is no journaling etc. The performance sucked. > >What cache_dir type did you use? aufs is recommended for linux. >The default "ufs" cache_dir type by design won't perform in higher loads as each I/O operations blocks the whole Squid process.. cache_dir diskd /var/spool/squid 65536 64 1024 Still, with several smaller independent disks for the cache_dirs, what filesystem is recommended for this use? Thanks so far... Charlie Johnson
