~ Q ~ said:
Rubens - typed:
Do SCSI drives come with free ear muffs? They certainly should - they
cost enough over & above SATA.
*If* SATA II lives up to expectations (where SATA hasn't),
Depends on your expectations. It seems a lot of people expected it to
magically double performance - They were disappointed but SATA never
promised significantly increased performance.
SCSI could be
obsolete. If SCSI can spin at a loud 15kRPM, so could ATA. SATA II has a
beefed up TCQ & asynchronous I/O which would also do for workstations
what TQC has done for servers, especially if s/w was rewritten to
actually use async I/O. The newest Raptor is supposedly /very/ quiet but
still doesn't have TQC.
It does have command queuing. I dunno whether it's TCQ or not, but
In reference to the WD740JD:
"Western Digital's Ultra/150 CQ technology optimizes the sequence of data
transfers to the hard drive from the host"
My guess is its implementation would slow down
desktop performance enough to worry the Raptor's existing market.
Not a good guess.
Precious little sign of SATA optical devices - still. STR is about the
least useful metric of h/d performance anyhow. Great for getting high
benchmarks though.
Whats STR? Oh, sustained transfer rate. Well, it's hard to say that it's
about the least useful measure. The most useful measure is the one most
closely related to your task. If you have one huge file, or work with very
big files, throwing them from here to there and back, then "STR" is probably
the most useful measure.
In terms of normal desktop performance, no, it's not especially useful on
it's own - but it's one of the few measures I can get an easy handle on.
Ben
