Erik: > > (2) a SAS drive has better throughput and IOPs than a SATA drive
Richard: > Disagree. We proved that the transport layer protocol has no bearing > on throughput or iops. Several vendors offer drives which are > identical in all respects except for transport layer protocol: SAS or > SATA. You can choose either transport layer protocol and the > performance remains the same. Reference, please? I draw your attention to Seagate's SPC-2 benchmark of the Barracuda ES.2 with SATA & SAS. http://www.seagate.com/docs/pdf/whitepaper/tp_sas_benefits_to_tier_2_storage.pdf Certainly there are a wide variety of workloads and you won't see a benefit everywhere, but there are cases where the SAS protocol provides a significant improvement over SATA. Anton -- This message posted from opensolaris.org _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
