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WD Caviar Blue 1TB 64MB Cache SATA III (6 Gb/s) on SATA II (3 Gb/s)

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February 15, 2014 7:12:42 PM

Hi All! I am planning to buy a Gigabyte G1.Sniper B5 motherboard. It has 4 x SATA 6 Gb/s ans 2 x SATA 3 Gb/s.
( http://www.gigabyte.com/products/product-page.aspx?pid=... )

The storage i'd use is a WD Caviar Blue 1TB 64MB Cache SATA 6 Gb/s. Eventually, i'd use up all the SATA ports, plugging a SATA 6 Gb/s on a SATA 3 Gb/s.
http://www.wdc.com/wdproducts/library/SpecSheet/ENG/287...

If a HDD with 64MB Cache SATA 6Gb/s was plugged on a SATA 3 Gb/s port, will there be any difference? I know the transfer rate will be limited to 300MB++, but what about the Cache?
and do you have other thoughts plugging SATA 6Gb/s on a SATA 3/Gb/s?
a b G Storage
February 15, 2014 8:03:41 PM

what thing you gone have in those sata 6 ports .
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February 15, 2014 8:09:42 PM

scout_03 said:
what thing you gone have in those sata 6 ports .

i will primarily use my storage for music (mp3), games, and videos (for watching only no intended encodings).
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a b G Storage
February 15, 2014 8:20:03 PM

how many ssd or hdd will be connect to those port or other hardware .
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February 15, 2014 8:44:24 PM

I accidentally clicked your Reply as the Solution Sorry. Is there anyway to Undo this?

scout_03 said:
how many ssd or hdd will be connect to those port or other hardware .


1 drive per port.
I plan on having 1 SSD with SATA 6Gb/s Interface. Rest is a SATA 6Gb/s HDDs
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a b G Storage
February 15, 2014 8:49:43 PM

so first will be ssd then all the other sata 6 drive for a total of 3 hdd and a ssd do you gone have any sata 3 device that you will connect to sata 6 port .
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February 15, 2014 8:57:23 PM

I actually just bought that drive today for my broken raid 0. No it does not affect the drive at all by putting it on the sata 2 port. The cache is definitely not fast enough to saturate the line, and ontop of that, the cache is really used for writing to the drive to improve small file writes and reads. If you are really that concerned about speed, get an ssd (which you already have)
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February 15, 2014 9:02:29 PM

scout_03 said:
so first will be ssd then all the other sata 6 drive for a total of 3 hdd and a ssd do you gone have any sata 3 device that you will connect to sata 6 port .


HDDs Only sir.

Basically, 6 SATA ports are available, 4 are SATA II (3Gb/s) and 2 are SATA 3 (6Gb/s)

Storages:
1 x SSD at SATA III (6Gb/s) Interface
5 x HDD with 64MB Cache SATA III (6Gb/s) Interface

since there are 2 x SATA II ports, 2 x HDD with 64MB Cache at SATA III interface will be plugged in a SATA II (3Gb/s) ports.
What i want to know Sir is...

if SATA III Drives plugged in a SATA II port, what will be the disadvatages i will get? Also, given that I have drives with 64MB Cache, will these Cache be affected ( again, if i plug the SATA III drive on a SATA II port)?
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a b G Storage
February 15, 2014 9:06:53 PM

cache will not change only that it will work at sata 3 speed and not sata 6 for reading and transfer of the files .
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Best solution

a c 523 G Storage
February 15, 2014 9:10:39 PM

You will get the same Read/Write speeds if you connect a 6Gb/s HDD to a 3Gb/s port or a 6Gb/s port.

HDDs can be 6Gb/s "compatible", not 6Gb/s "capable". No HDD can spin fast enough to saturate a 3Gb/s port, let alone a 6Gb/s port. A HDD's cache buffer (16MB or 32MB or 64MB) can transfer its contents at 6Gb/s speeds, but that's it.

SATA 1 (1.5Gb/s) speeds are from 1MB/s to 150MB/s.
SATA 2 (3Gb/s) speeds are from 151MB/s to 300MB/s.
SATA 3 (6Gb/s) speeds are from 301MB/s to 600MB/s.

The Read/Write speeds for the 1TB WD Caviar Blue are up to 150MB/s.
http://www.wdc.com/wdproducts/library/SpecSheet/ENG/287...


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