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Hard Drive Comparison Question


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#1
DJ Sherpa

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Hi, been looking at getting a second external hard drive. I was looking at the WD 320 gig. My first question is what is the difference between SATA 100 and 150. and will both work with a 3.5" external enclosure? My second question is how much of a difference does it make adding 16mb of cache instead of 8mb?

I use a Powerbook G4 and do a lot of sound recording if this is necessary. Use the firewire port for harddrives.

Thanks for any help
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#2
ThunderT

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I believe that the difference between SATA 100 & SATA 150 is 50MB/s theoretical bus speed. To be honest, I wasn't aware of a SATA 100 speed. If the enclosure takes SATA, it will take both. Going to the bigger cache will definitely speed up read/write times, but without knowing the actual numbers, my estimation would be not more than 10% faster. Since you do a lot of sound recording, I would recommend getting the bigger cache size and the fastest speed available.
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#3
GeneralAres

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There is no official SATA-100 spec, a true SATA drive is 150 or higher. I suspect any drive labeled SATA-100 maybe an EIDE drive with a converter. Simply put get an SATA-150 drive with 16MB of Cache and 7200 RPM or higher spindle speed. The cache and RPM affect the performance the most.
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#4
DJ Sherpa

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OK I think I have decided to go with this Western Digital Caviar SE16 WD2500KS 250GB 7200 RPM 16MB Cache Serial ATA II Hard Drive - OEM

Anyone have any suggestions for an external case? Cheap and 1 or 2 firewire ports is good....
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#5
Tyger

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OK I think I have decided to go with this  Western Digital Caviar SE16 WD2500KS 250GB 7200 RPM 16MB Cache Serial ATA II Hard Drive - OEM

Anyone have any suggestions for an external case?  Cheap and 1 or 2 firewire ports is good....

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Acomdata.
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