PCDVD數位科技討論區

PCDVD數位科技討論區 (https://www.pcdvd.com.tw/index.php)
-   儲存媒體討論區 (https://www.pcdvd.com.tw/forumdisplay.php?f=20)
-   -   500G的硬碟 只有WD能買了喔.... ? (https://www.pcdvd.com.tw/showthread.php?t=768092)

chlang 2008-01-25 12:40 AM

引用:
作者pcc0905
現在大家都習慣玩疊疊樂~ 這顆的玩法應該是寫入部分!

WD500AAKS示範6顆疊疊樂:
http://www.pbase.com/image/89674928.jpg

WD500AAKS最前面那1顆:
http://www.pbase.com/image/89673149.jpg


^^;

這個速度 ? 遠超過單顆速度 ?

因為 Cache 的關係嗎 ?

deenln 2008-01-25 03:17 AM

引用:
作者missone
看是不是開成靜音模式了.


請教一下~~要如何關閉靜音模式??之前買了一顆~~結果不會調~~都是19MS

pcc0905 2008-01-25 05:00 AM

引用:
作者chlang


^^;

這個速度 ? 遠超過單顆速度 ?

因為 Cache 的關係嗎 ?




有幾個方法可以達到,最快的方法之一:


討論主題:【重裝上陣】資戰每秒4GB火線4通道陣列 [將此主題加入筆記簿]
主題發表人: purelove [發表於 2006/12/31 14:25 ] 回應 | 轉寄此篇


原本MAC 熱愛的Fibre-Channel 下半年WIN 平台拜PCI成熟,

目前已有PCI Express x8、PCI-X產品量化生產線穩定產品,

並且有2GB、4GB、單通道- 4通道介面可供選擇!(有效距離30呎)

理論值可以提供2000MB/s 陣列速度,實戰可以提供800-1600MB/s!
(只要8顆7.2K轉 SATA_2+ RAID_0)

準備好座穩抓好方向盤享受【大容量DDR記憶體等速的硬碟】。

(2006 copyright ATTO)



The Celerity FC-44ES 4 Gb Fibre-Channel Quad-Channel PCI Express Host Adapter from ATTO is a PCI Express expansion card that allows you to connect 4 Fibre-Channel devices to your computer. The card features quad 4 Gb Fibre-Channel ports with optical connectors, but it is fully compatible with 2 Gb and 1 Gb Fibre-Channel devices. The card supports speeds of up to 800 MB/sec per channel, making this an excellent solution for your high-speed data access needs.

Key Features

• Fibre-Channel Connection
The 4 Gb Fibre-Channel connection translates into data transfer rates of up to 800 MB/sec. This gives you enough bandwidth to work with such data intensive applications as video editing, music production and database development.

• Advanced Fibre-Channel Functions
The controller supports many advanced Fibre-Channel functions including the SNIA HBA API and Windows FDMI and WMI. It also supports Target and Initiator modes and is fully backwards compatible with 2 Gb and 1 Gb Fibre-Channel devices.

• ADS Technology
The Advanced Data Streaming (ADS) Technology is designed to allow for controlled acceleration of data transfers, allowing you to move large amounts of data faster and more efficiently. This gives you the I/O performance you need to work with transfer intensive applications.


Interface Protocol 4 Gb Fibre Channel

Host Connection Type PCI Express x8

Data Transfer Rate Up to 800 MB/sec per channel

Cache Memory Not Specified by Manufacturer

Channels 4

Device Support 4 Gb, 2 Gb and 1 Gb Fibre-Channel

FC Topology Direct Fabric, Arbitrated Loop, Point-to-Point

Transfer Class Class 3

Hot Swap Support Yes

Connectors 4x Pluggable Optical LC SFP Transceivers

Maximum Cable Length 1640 '' (500 m) at 1 Gb
984'' (300 m) at 2 Gb
492'' (150 m) at 4 Gb

 
Raid 

Supported Software RAID Supported

Included No

 
Drivers 

Supported Windows Server 2003, XP, 2000; Red Hat Linux 2.4 and 2.6; SUSE Linux 2.6; Mac OS X 10.4; Novell Netware 6.5; Solaris 9 and 10; FreeBSD; Fedora

Included Yes

 
System Requirements 

Mac Mac OS X 10.4.x or greater

Windows Windows Server 2003, Windows 2000, Windows XP

Hardware Available PCI Express x8 Slot

Power 12 V at 2.1 A max
3.3 V at 3.0 A max

 
Environmental Requirements 

Operating Temperature: 32-113° F (0-45° C)
Humidity: 5-95%, non-condensing

Storage Temperature: -40-157° F (-40-70° C)
Humidity: 5-95%, non-condensing

deenln 2008-01-26 02:14 AM

有人知道要怎麼關閉靜音模式嗎??真是完全沒頭緒

chlang 2008-01-26 02:20 AM

引用:
作者pcc0905
理論值可以提供2000MB/s 陣列速度,實戰可以提供800-1600MB/s!
(只要8顆7.2K轉 SATA_2+ RAID_0)

準備好座穩抓好方向盤享受【大容量DDR記憶體等速的硬碟】。


??

單顆硬碟的最高速度大概是 90MB+/s (最外圈)
理論上八顆 90 * 8 = 720 MB/s

超越理論上限值 ?! 怎麼辦到的啊 ?

pcc0905 2008-01-26 03:55 PM

引用:
作者chlang
??

單顆硬碟的最高速度大概是 90MB+/s (最外圈)
理論上八顆 90 * 8 = 720 MB/s

超越理論上限值 ?! 怎麼辦到的啊 ?





磁碟陣列的上限是在【介面】,單顆硬碟速度的變因不一定絕對!

因為緩衝資料會在CACHE裡,CACHE的穩定上限大約是2GB/s每秒,

剩下就是【線材】可以跑多快會【穩定】,fibre也大約是2GB/s會穩。
(4 channel)


所有的時間均為GMT +8。 現在的時間是07:35 AM.

vBulletin Version 3.0.1
powered_by_vbulletin 2025。