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Old 03-09-09   #1 (permalink)
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Default [Engt]Seagate demos world's first SATA 6Gbps hard disk as speed-freaks swoon

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You read that right, 6Gbps. Seagate and AMD will be showing-off a prototype Barracuda hard disk drive with AMD prototype 6Gbps SATA chipset for the first time this week at the Everything Channel Xchange Conference in New Orleans. Yup, a world's first. Fortunately, the third generation SATA interface remains backward compatible with your old SATA 3Gbps and SATA 1.5Gbps disks and devices -- cables and connectors too. SATA revision 3.0 also brings enhanced power efficiency with improved Native Command Queuing for applications with heavy transactional workloads. No update to the official launch timeline was made so we'll assume that the first half of 2009 for retail devices is still in the bag. Hey, you weren't planning to purchase a new laptop or desktop before then anyway were you. Were you?
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Old 03-09-09   #2 (permalink)
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Do want

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Old 03-09-09   #3 (permalink)
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It about time. 3.0g has been around long enough.
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Old 03-09-09   #4 (permalink)
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Pointless on anything but the very fastest SSD. Don't mention 15K drives, they use SCSI.
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Old 03-09-09   #5 (permalink)
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Note that those benchmarks are of the interconnect and not of a single hard drive.
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Old 03-09-09   #6 (permalink)
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The average sustained read/write speeds of todays 3G drives are only around 50-70MB/s. The problem with hard drives today isn't bandwidth, its the spindle speeds. Modern sata 7200rpm drives don't even saturate the 150MB/s of the 1st gen sata, don't really see the point in this until they start making faster drives.

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Old 03-09-09   #7 (permalink)
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Quote:
Originally Posted by 003 View Post
Pointless on anything but the very fastest SSD. Don't mention 15K drives, they use SCSI.

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The average sustained read/write speeds of todays 3G drives are only around 50-70MB/s. The problem with hard drives today isn't bandwidth, its the spindle speeds. Modern sata 7200rpm drives don't even saturate the 150MB/s of the 1st gen sata, don't really see the point in this until they start making faster drives.



Raid 0 arrays will benefit from the extra bandwidth.
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Old 03-09-09   #8 (permalink)
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Raid 0 arrays will benefit from the extra bandwidth.
I just put in a RAID 1 array in my computer of some lower end drives, and I'm getting write speeds of 120MB/s!! I agree with you for sure!
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Old 03-09-09   #9 (permalink)
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Quote:
Originally Posted by TestECull View Post
Raid 0 arrays will benefit from the extra bandwidth.
No, they won't. SATA is a point-to-point interconnect. Each individual hard drive gets a dedicated 1.5Gb/s, 3.0Gb/s, or 6.0Gb/s connection to the SATA controller already. RAID is done at the controller level and not the HD interconnect level. A RAID0 with 100MB/s hard drives will perform the same regardless of SATA speed.

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I just put in a RAID 1 array in my computer of some lower end drives, and I'm getting write speeds of 120MB/s!! I agree with you for sure!
Agreeing with falsehood.
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Old 03-09-09   #10 (permalink)
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Also, they're working on faster stuff. SSDs and such won't be out of reach forever, you know.
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