On Sun, 1 Aug 2004, Mikael Abrahamsson wrote: > And also because scsi drives can do tagged queueing which makes it more > efficient to do a lot of smaller operations. Historically the SCSI drives > also had more cache memory which helps the situation, and the scsi > RAID controllers probably also had more cache memory on them (I know RAID > systems that have gigabytes of cache memory). What I find amusing these days is trying to work out the "boundary" point between a "traditional" server with an (external) RAID controller and say a Linux server with software RAID in a purely fileserving environment (eg. NFS/Samba, not used for local operations at all) ... Both systems as a unit provide the same services - ie. filespace at the end of the Ether, but what are the advantages of one over the other, and why would I ever want a hardware RAID controller in a PCI slot in a Server PC? Discuss... ;-) Gordon - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html