On 5/22/13 4:57 PM, Merlin Moncure wrote:
Oh, the major vendors will still keep their rip-off going on a little longer selling their storage trays, raid controllers, entry/mid level SANS, SAS HBAs etc at huge markup to customers who don't need them (some will still need them, but the bar suddenly just got spectacularly raised before you have to look into enterprise gear).
The angle to distinguish "enterprise" hardware is moving on to error related capabilities. Soon we'll see SAS drives with the 520 byte sectors and checksumming for example.
And while SATA drives have advanced a long way, they haven't caught up with SAS for failure handling. It's still far too easy for a single crazy SATA device to force crippling bus resets for example. Individual SATA ports don't expect to share things with others, while SAS chains have a much better protocol for handling things.
-- Greg Smith 2ndQuadrant US greg@xxxxxxxxxxxxxxx Baltimore, MD PostgreSQL Training, Services, and 24x7 Support www.2ndQuadrant.com -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
