Depends on what you use to test, and what your gauge is for fast, and by how
much. I actually tested all my drives with some utilities and with my own
test methods. I have an 8600/XLR8/G4/450 with and old SCSI drive and a new
SCSI drive as well as an ATA/IDE drive hooked to my Sonnet Tempo Trio and an
external FW drive. My conclusion is that the SCSI and or PCI bus makes them
pretty even for sustained transfer. For example:
>From to
Size Time
Old Seagate SCSI 50 pin 5400rpm 250Meg Ram Disk 88.9 Meg file 28.9 secs
New IBM 68 pin 10,000 rpm same same
27.62 secs
WD IDE 7200rpm same same
22.46 secs
FW same
same 22.72 secs
Notice the Seagate has a 5400rpm speed.
However, when I tested the same drives with some of the benchmarking utils,
it was different. For example FWB's QuickBench results gave:
Old SCSI topped out at around 9 MB/Sec
New SCSI topped out about 9 MB/Sec
ATA/IDE topped out at 24 MB/Sec
FW topped out at about 27 MB/Sec.
Personally, I think the benchmarking programs only test from the platter to
the bus, and not across the bus. Only a guess. Oh, and all drives were either
empty or had just been optimized.
STeve
<< Ive got PM8600 with 3 internal SCSI
drives (2 50-pin and 1 80 pin SCA w/ 50 pin
adapter: 4Gb/5.6K rpm stockHD, 9Gb/10k, 18Gb/10K)
I think PM8600 internal SCSI is Fast SCSI-2
(10Mb/sec)
and my question is:
Is ATA faster than SCSI? I dont know
much about ATA and was wondering the benefits
of such a setup.
your comments are appreciated.
EBC >>
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