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Old 24-09-2008, 12:05   #1 (permalink)
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Test Comparativ - HDD

Platforma de test e cea de aici. Controller-ul e cel din ICH10R setat in mod AHCI.

Rezultatele sunt scoase in HD-Tach, Everest Disk Benchmark si HD Tune Pro si sunt trecute in tabel, iar rezultatul final e calculat in functie de viteza de transfer, timpul mediu de acces si cu pondere foarte mica pentru buffered read (la "Scor Transfer" nu e luat in calcul timpul de acces).

Primele rezultate arata cam asa:
Click image for larger version

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HDDTest2.zip

La toate HDD-urile testate am pastrat si graficele in HD Tune Pro, daca e cineva interesat sa zica si le postez.

Ca si recomandari, sunt cateva lucruri de spus:
- Marca, specificatiile si incadrarea comerciala nu conteaza. De exemplu WD (AA)KS exista si la inceputul si la sfarsitul clasamentului.
- Vechiul WD Raptor si-a pierdut utilitatea. Timpul de acces mai bun nu mai poate sa compenseze viteza de transfer mica si alte dezavantaje (capacitatea mica, pret mare).
- Best buy e pe departe WD 640 "Caviar Blue" (AAKS cu 320GB pe platan). Are cel mai bun raport GB/pret si performanta/pret, fiind depasit la viteza doar de VelociRaptor care e mult mai scump.
- La capacitate de 1TB WD "Caviar Black" are un mic avans fata de Samsung (in special din cauza timpului de acces mai bun), dar pretul e cu pana la 50% mai mare, deci Samsung-ul ar fi alegerea mai buna.
- WD VelociRaptor e pe departe cel mai rapid HDD (S-ATA) din toate punctele de vedere. Spre deosebire de Raptor, nu mai are dezavantaje precum zgomotul, temperatura sau vibratiile. Totusi pretul de peste 1USD/GB il scoate din calcul in cele mai multe cazuri.
- 32MB Buffer nu aduc nimic in plus fata de 16MB. Dupa cum se vede, pe primele locuri sunt modele cu 16MB buffer care castiga inclusiv la testele de buffered read.

Last edited by nero; 24-09-2008 at 12:25..
 
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Old 24-09-2008, 12:21   #2 (permalink)
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Old 24-09-2008, 17:23   #3 (permalink)
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foarte util testul, multumim pentru efort
 
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Old 24-09-2008, 18:07   #4 (permalink)
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bun testul
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Last edited by mascotzel; 24-09-2008 at 18:18..
 
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Old 24-09-2008, 19:25   #5 (permalink)
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multam pt comparatie
f utila
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Old 27-09-2008, 22:15   #6 (permalink)
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Iti multumim ptr. test.Tine-o tot asa sau spre mai bine.
 
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Old 28-09-2008, 08:41   #7 (permalink)
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am apucat si eu sa testez 2 velociraptoare de 150 in raid 0, peste 400 in burst si vreo 240 average read. timp de acces 7.0 ms. am fost uimit.
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Old 30-09-2008, 00:23   #8 (permalink)
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E ceva de muncă cu acele HDD, mulţumim pentru teste. Seria de la Seagate cu 320GB/platan o poţi verifica? Un ST3640323AS spre ex.
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Old 30-09-2008, 00:28   #9 (permalink)
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Preferabil cea cu 375 de Gb densitate, prin modelul de 1.5 Tb cu 4 platane... cat despre modelul de 640 de Gb de la Seagate, chiar esti sigur Vivio ca are numai 2 platane?
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Old 30-09-2008, 01:45   #10 (permalink)
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Conform datelor de catalog ar avea doar 2.

Eu eram mai modest în aşteptări , 1,5TB nu ar sta rău în PC :P

Quote:
Drive specification
ST3640323AS
ST3640623AS
Formatted capacity (512 bytes/sector)*
640 Gbytes
Guaranteed sectors
1,250,263,728
Heads
4
Discs
2

Bytes per sector
512
Default sectors per track
63
Default read/write heads
16
Default cylinders
16,383
Recording density
1250 kbits/in max
Track density
190 ktracks/in avg
Areal density
219 Gbits/in2 avg
Spindle speed
7,200 RPM
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Old 30-09-2008, 17:45   #11 (permalink)
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E in teste Seagate 640 (ST3640323AS), e misto la transfer dar (foarte) dezamagitor la timp de acces. O sa centralizez rezultatele si le postez.
De cel de 1.5TB nu stiu nimic, inca n-a aparut prin oferte. Cum apare il testez.
 
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Old 30-09-2008, 21:53   #12 (permalink)
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Mulţumesc! Am văzut în alte teste că are un timp de acces destul de slab, la fel şi WD 640GB, se pare că densitatea mai mare nu a adus cu sine doar creşterea ratei de transfer.
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Old 01-10-2008, 02:01   #13 (permalink)
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WD 6400AAKS are timp de acces foarte bun daca ii dezactivezi AAM (sau il pui pe performance). Din pacate la Seagate nu mai exista de mult optiunea asta.

Uite cam care e ordinea la timp mediu de acces (evident, lower is better):
Click image for larger version

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In afara de cele la 10000rpm, 6400AAKS e singurul cu timp mediu de acces sub 12ms.
 
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Old 01-10-2008, 09:57   #14 (permalink)
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Din ce am văzut aici nu toate reviziile suportă bine modificarea AAM, iar timpul de acces nu scade nici el foarte mult.
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Old 01-10-2008, 10:02   #15 (permalink)
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Eu n-am avut nicio problema si am testat foarte multe. Poate depinde si de softul cu care incearca, eu le schimb cu MHDD32. Daca incerci din HD Tune Pro, sigur nu vei reusi.
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Old 09-10-2008, 11:48   #16 (permalink)
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Update:
Am adaugat Seagate 7200.11 de 640GB si WD Black Edition de 750GB.
Attached Thumbnails
Click image for larger version

Name:	TestHDD.png
Views:	243
Size:	43.6 KB
ID:	392805  
Attached Files
File Type: zip HDDTest2.zip (37.0 KB, 38 views)
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Old 09-10-2008, 11:55   #17 (permalink)
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Păcat de timpul de acces la Seagate.

PS: spune şi tu că e un XLS deghizat, nu e o arhivă simplă.
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Old 09-10-2008, 12:07   #18 (permalink)
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Si o comparatie directa intre cele 3 harduri de 640Gb
Attached Thumbnails
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Old 15-10-2008, 17:54   #19 (permalink)
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Update

A venit Seagate 7200.11 de 1.5GB, plus alte WD-uri din seria Black.

La Seagate de 1.5GB merita precizat faptul ca a pierdut mult din cauza timpului de acces, dar daca e configurat/partitionat corespunzator timpul de acces nu mai e o problema. De exemplu, am facut o incercare, am limitat capacitatea hardului la 500GB, caz in care timpul de acces a scazut la 11.5ms. La rata de transfer e clar in fata celorlalte HDD-uri de 7200rpm.
Attached Thumbnails
Click image for larger version

Name:	TestHDD.png
Views:	182
Size:	45.4 KB
ID:	394625  
Attached Files
File Type: zip HDDTest2.zip (10.0 KB, 16 views)
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Old 15-10-2008, 20:29   #20 (permalink)
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Quote:
Originally Posted by nero View Post
Si o comparatie directa intre cele 3 harduri de 640Gb
Poti sa ne zici ceva in privinta sunetului produs? Care este mai silentios? Ma intereseaza mai mult decat performanta...
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