On Fri, Nov 09, 2007, Dave Raven wrote: > Hi Adrian, > > It works for the full 4 hours with a null cache directory. How would > I see any kind of stats/information on disk IO? From the stats I can see so > far, the disk stats don't change at all when it fails ... That'd be because you're probably maxing the disk system out early on and what you're seeing is a slowly-growing disk service queue? > I'm currently using COSS, but I've also tried this with ufs and diskd (with > the same results, just different times that it fails after). COSS should handle small object loads better but some have reported little benefit beyond a pair of COSS disks. Try graphing the aggregate disk and per-disk transactions/second; I bet you'll find it plateau'ing relatively quickly early on. Adrian -- - Xenion - http://www.xenion.com.au/ - VPS Hosting - Commercial Squid Support - - $25/pm entry-level VPSes w/ capped bandwidth charges available in WA -