ϵũ ̺ ü Ʈ ũ(www.seagate-asia.com/korea) 뼺, , 뷮 NCQ ֻ
HDD
ġƷ 2005 鼭 ο ǰ ٶ(Barracuda)
7200.8 ø Ͽ.
Ʈ ٶ 7200.8 200GB~400GB 뷮 ϸ, ̱ ũ ְ 133GB ִ ϵ
̺ ְ ڶϴ ǰ̴. ̷ ְ ũ 带 ֵ
Ӹ ƴ϶, PC ϵ ̺ ɰ ְ ŷڼ ش.
ٶ 7200.8 ȹ NCQ (Native Command Queuing) ÷ ̱-Ĩ Ƽ
SATA ̽ Ʈ ̽ ̾ ִ ǰ̴. Ʈ ڻ ä Ǹŵ
ϵ ̺꿡 5Ⱓ Ⱓ ϰ ִ.
Ʈ NCQ Բϴ Ƽ SATA ̽ ٶ 7200.8 ǰ 뷮 ʰ
10,000-rpm SATA ̺ ɿ ϸ, ⰡƮ ξ ϰ . NCQ ٶ
7200.8 ý, ũ̼, PC- Ȩ ̵ , Ʈ- SATA PC
ø̼ǿ ִ. ̿ Բ, NCQ νƮ ڵ ϻ , ø̼ ε, ī ۾
ֵ ش.
Ʈ ο ٶ 7200.8 PC
ʱ 丮 ø̼ǿ 뷮 ְ Ǿ.
NCQ ø̼ ÿ I/O û ֵ ִ - (Hyper-Threading
Technology) Բ ó ýۿ ο Ѵ. NCQ I/O Ȱ ū Ѵ.
̿ Բ, NCQ non-NCQ ̺갡 ϱ ߵ ϴ κ ν ۾
̺ ŷڼ Ų.
ֽ αִ PC ϵ ̺ ǰ Ʈ ٶ 7200.8 8 MB Ǵ 16 MB ij ,
7,200-rpm ӵ, 8.0-msec Ž ð ǰ̴. Ʈ Ư ƮҴ ü ̳
(SoftSonic Fluid Dynamic Bearing) ̿ϰ ־ ٶ 7200.8 ϰ ۵Ѵ.
ٶ 7200.8 200GB, 250GB, 300GB, 400GB 뷮븦 ϸ, Ƽ SATA ̽ Ǵ Ʈ
ATA ̽ ɼ Ѵ. ƿ, 5Ⱓ Ư¡ Ѵ.
400,300,250,200GB
뷮븦 7,200RPM ,SATA/150 Ǵ Ultra ATA/100 ϴ
ǰ̴.
Ʈ ũ , ũ, ǻ Һ (CE) ø̼ǿ ǰ ϸ鼭
ϵũ ̺긦 , , Ǹϴ ̴. Ʈ о߿ 䰡 Կ ǰ
ŷڼ ϴµ ַϰ ִ.
Ʈ ѱ ͳ Ȩ www.seagate-asia.com/korea
ڼ ϰ ִ
|
ŷڵ/ Ἲ |
(CSS) |
50,000 ȸ |
Native Command Queuing(NCQ) |
|
SeaShield S.M.A.R.T |
|
Ⱓ |
5 |
3 (ǻͿ ) |
2 (ڰ ðƮ RMAȯ) | |
|
|
+12VDC + 10%(Amp, ִ) |
2.8 |
Ž ( Ʈ) |
12.4 |
۵ ( Ʈ) |
12.8 |
( Ʈ) |
7.2 |
( Ʈ) |
1.4 | |
|
ȯ |
µ:۵ µ() |
0 - 60 |
۵ :2msec(G) |
63 |
۵ :1 2msec(G) |
300 | |
|
|
(Bel-) |
2.8 |
Ž(Bel-) |
3.2 |
Ž(Bel-) |
3.7 | |
|
|
(in/mm) |
1/26.11 |
ʺ(in/mm) |
4./101.85 |
(in/mm) |
5.78/146.99 |
(lb/g) |
1.4/635 | |
|
|
|
|
7200.8 |
7200.7 |
÷ʹ 뷮 |
133GB |
80GB |
ũ(//) |
101.85/146.99/26.11mm |
101.85/146.56/26.1mm |
|
635g |
544/635g |
|
8MB |
8MB |
|
7,200rpm |
7,200rpm |
NCQ |
⺻ |
(200GB ) |
ִ ӵ |
95 MB/s |
68.3 MB/s |
ִ ܺ ӵ |
150/100 MB/s |
150/100 MB/s |
Ž ð |
8
ms |
8.5 ms |
ð |
4.16 ms |
4.16 ms |
A/S |
3 / 2 |
1 3 |
:
NCQ (Native Command Queuing)
NCQ
ǥ ũ
Ʈ, , Ǹ ̹(Silicon Image) ø ATA ̽ Ǵ Ư¡ ϳ ø ATA(SATA)
Ƽ Ŀǵ ť(NCQ) ǥߴ.
̵ 3 ü SATA Ŀǵ ť ʿ Ƽ SATA ϵ ̺, ȣƮ Ʈѷ, ý Ʈ ϴ
ϳ ø ATA ַ âϿ. ý Ʈ ο 200GB ٶ SATA ϵũ ̺
NCQ ϵ Ư¡ ϴ Ǹ ̹ SiI3124 SATALink 4-port PCI-X ȣƮ Ʈѷ
ߴ. SATA NCQ νḸ ÿ Ǿ , ̹ ǥ ̱ ȣ Intel Developer
Forum Serial ATA Work Group ν ÿǾ.
SATA NCQ ֽ ߱ϴ ý ũ ϰִ Ŀ
ο SATA 丮 ϴ ְ ִ. SATA NCQ Ŀǵ ť̳ Ŀǵ ť ƴ
긮 SATA Ǵ PATA ַ ý۰ Ͽ PC Ʈ- ýۿ I/O ũ ش.
ġũ ̿ I/O ũε忡 ־ ϱ ڿ Ư õǾ.
NCQ
ũ
NCQ ϵ ̺갡 б/ ϰ ȭ Ű μ ũ ̵ Ͻø ϰ ִ
۾ó ü ø ̴.
NCQ Ƽ ø ATA ϵ ̺꿡 밡 ø ATA ݷν NCQ ϴ ̺
ɾ ϰų ϰ Ǹ ̺갡 ٸ ɾ ó ؼ ã ִ ȿ ȣƮ
߰ ֵ ϴ ī ϰ ִ.
NCQ ȣƮ Ʈ ۿ DMA(Direct Memory Access) ̺ Ͽ
ְ ϴ First Party DMA ɵ ߰ ִ. ̴ پϸ鼭 ϵ ̺ CPU ó
ϴٴ ̴. NCQ ̺ ̺ /ȸ ġ ľϰ ־ ˻/ȸ Ͻø ּȭ
ϰ ȴ. SATA NCQ ø ATA Ƽ Ŀǵ ť; ø ATA ο ɻ Ư¡ ڰ
Ʈ ڷῡ Ÿ ִ. (http://specials.seagate.com/ncqpaper/)
NCQ Ʈ Ƽ ø ATA ϵũ ̺ ϰ ִٴ Ư¡̴. NCQ ϵ
̺ mechanical positioning latencies ּȭν Ŀ workload Ű鼭
SATAϵũ ̺갡 ְ 32 ɴ ֵ ָ, аų ֵ
ش.
NCQ SATA ǰ 뿡 ΰ Ʈ- ο ̴. PC ũ̼,
near-line 丮 ý, ȣð ø̼ ϴ low transactional , IT ,
gigabyte Ư ߿ Ʈũ Ʈ SATA NCQκ ִ.
ٶ 7200.8 SATA Native Command Queuing (NCQ) ϴ
ϵũ̴.
ó : KBENCH
|
: NCQ (Native Command Queuing) Technology
NCQ İڸ
, ̹ 翡 ˱⽱ Ǯ 帮 Ѵ. NCQ ϵũʹ 1 32 HDD
ִ ϰ ִ. ִ 32 ɱ ֱ , 1 1 ɸ ϴ Ϲ
HDD ϴٴ NCQ ٽ̴.
Ҿ NCQ ǰ HDD Ư
ϴ ̶ ϴ, ٸ ø̼ Ǵٸ ɾ HDD Ǹ, ﰢ ̸ ߰Ͽ ɾ
ó ȭ/迭ϴ ϱ , ü HDD ó ȿ ִ ֱ
ϴ.
NCQ ϸ,
ּȭ ִ.
NCQ ٸ ϳ, ϴ
HDD ü ڽ 尡 κп ȸϰ ִ° νϰ ִٴ ̴. ġ ΰ ľϰ
ֱ , ɾ 䱸 , NCQ ּȭ ִ HDD ۽Ű ,
˻/ȸ Ͻø ּȭϴ ִ ȴ.
NCQ ϱ
ο ϱ ؼ,
߾ ־ Ѵ. NCQ ϱ ߾ Ʒ .
1. 915/925
Express Ĩ κ尡 ʿ
Ȯ ϸ 915/925 Express Ĩ ʿ
ƴϴ. ̿ ¦ ߾ ý ϰ Ǵ ICH6 Ĩ ʿ ̴. ڵ鵵 ƽôٽ ICH6 Ĩ ϴ
4 (ICH6 / ICH6R / ICH6W / ICH6RW) Ĩ зȴµ, NCQ 4 Ĩ ο
ϱ , 915/925 Express Ĩ ä κ忡 Ȱ ϴ.
915/925 Express κ带 Ȱ
ʴ ִ ִ. Promise / Silicon Image 簡 ϰ ִ NCQ Ʈѷ Ȯī带
Ͽ ϸ ȴ. ٸ 쿡 Ȯī Կ ߰ ҿȴٴ δ Ƿ, Ȱ δ ڰ
ؾ ̴.
2. CMOS Setup
SATA HDD ۸带 AHCI
ICH6 Ĩ κ Ͱ ɼ ߰
Ƿ ʿ . ٸ AHCI ÿ HDD ȿ NCQ Ȱȭ Ƿ, ݵ AHCI
߰ HDD ؾ Ѵ.
3. Intel
Application Accelerator 4.0 ̻ S/W ġ ʿ
CMOS Setup AHCI ߰ ߰
ؾ ۾ ִٸ, װ Intel Application Accelerator 4.0 ̻ S/W ġؾ Ѵٴ
̴.
|
|
ٶ 7200.7 SATA -
Ϲ
|
|
|
ٶ 7200.7 SATA -
NCQ
|
ȭ Intel Application Accelerator
4.5 ġ HDD ĸ ȭ̴. ѱ ̱ "⺻ ɾ " ̶ ǥõǾ
ִµ, κ ٷ NCQ κ̴. ĸ ȭ鿡 ˼ ֵ NCQ ϴ ʴ Ϲ κ "ƴϿ"
Ǿ ְ, NCQ "" Ǿ ִ.
3 ¶ NCQ ⺻
Ȱȭ ´. Ϲ SATA HDD ϸ ġ ణ ٷο , ؼ ݵ ľ κ̴
˾Ƶ ʿ䰡 ִ κ̴.
ó:
ũ
ũ
|
ü
öƽ ϵũ Ǿ
ִ. ̰ öƽ Ǿִٰ ˷ ִ.
ҷ ͵ ǰ ִٰ ϴ 걹 °
ٸ Ͱ.
ü
|
ٶ 7200.8 250GB ü
|
7200.8 250GB ϵũ ü
ǰ ũ ٸ ģ Ǿ ִ.
ϵũ ο ǰ
ִ ƼĿ Ǿ ִ. ǰ ü
ǥⰡ Ǿ ְ ġ ϴ ȳ ִ.
ǰ ϵũ
̶ ִ 븮 ƼĿ ٿ ִ.
ǻ ߰ Ǿ ִ. ðƮ ǰ
2004 81Ϻ 3 +2 RMA Ϲ 5 ASå
ٲ. ڵ ο AS ðƮ
ϵũ ϴ ִ Ͱ. Ÿ ϵũ
鵵 ASⰣ 3 ٲٱ ߴ.
|
|
|
ϵũ
|
ٶ 7200.8
Ŀ ̺ պκ Ƣ ־ ϵũ
Ģó ǻ ̽ HDD ̿ ȮϿ
ϵũ ν Ŀ ߿ ִ
̵ ִ Ͱ.
ʿ ڿ ڰ
ǥⰡ Ǿ ִ ִ.
ϵũ
Ǿ ִ. ǻ ̽ 3 Ȩ ִ.
ʿ øѹ ִ ƼĿ ٿ ִ ̴.
κп Serial-ATA
ĿͿ Serial-ATA ϴ Ϻ ̴. 7200.7
ǰ κп ִ öƽĿ ־ 7200.8 ǰ
̺κ ŵǾִ δ.
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