11 Sep
2012
11 Sep
'12
1:54 a.m.
As long as we're on the subject, here's an interesting article I
saw just today about the performance and data safety aspects of
SATA vs. SAS/FibreChannel/SCSI disks.
http://queue.acm.org/detail.cfm?id=2367378
It's by Marshall McKusick, who is a man who ought to know his
filesystem and disk stuff.
For those who don't like going to web articles, it basically
boils down to the fact that while SATA is perfectly capable of
supporting proper tag queueing, most bottom-dollar drives don't
and basically all other higher-end transports (including SAS,
FibreChannel, and parallel SCSI) do.
There's a lot of other neat stuff in the article, but I thought
it might be interesting while we're bashing PATA and giving
SATA a "meh" around these parts.
- Dave