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Write speed between a raid 0 array and a sata II stand alone drive question

post #1 of 4

8/4/10 at 6:16pm

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Zhany
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Joined: Jun 2010
Location: Arizona
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Hey everyone quick question about write speeds I am doing a large set of file transfers about 90gb and 100,000+ files and wondering if my write speeds are normal transferring from source drive which is a 1tb Western digital 7200 rpm drive to my raid array 2 640 Western digital 7200 rpm drives I got around 60 megabytes/sec give or take. Now transferring the other way after wiping the other drive it started out really slow for the first minute or too 1 -2 MB/sec and then built up to about 22MB/sec and is now sitting at 37MB/sec are these speeds normal for this type of transfer?

CPU	Motherboard	Graphics	RAM
AMD Phenome II X6 1100T	Asus Crosshair IV Formula	GTX 470	G.SKILL Ripjaws Series 8GB (4 x 2GB)
Hard Drive	Optical Drive	OS	Power
SAMSUNG Spinpoint F3 HD103SJ 1TB 7200 RPM	Hp dvd1260	Windows 7 Professional(64bit)	Antec True power Quattro 1200w
Case
NZXT Phantom
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CPU	Motherboard	Graphics	RAM
AMD Phenome II X6 1100T	Asus Crosshair IV Formula	GTX 470	G.SKILL Ripjaws Series 8GB (4 x 2GB)
Hard Drive	Optical Drive	OS	Power
SAMSUNG Spinpoint F3 HD103SJ 1TB 7200 RPM	Hp dvd1260	Windows 7 Professional(64bit)	Antec True power Quattro 1200w
Case
NZXT Phantom
View all

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post #2 of 4

8/4/10 at 6:36pm

Kramy
Storage Nut

Joined: May 2005
Location: Canada
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Yes. You never get the raw speeds benchmarks advertise, because of the nature of files and filesystems.

First, your OS looks up where the file is... then it reads it... then it writes it, and then it writes a record in the MFT so it can find it again.

CPU	Motherboard	Graphics	RAM
Phenom II X6 1055T	Saberooth 990FX	eVGA GTX 560 SE	4x4GB Corsair Vengeance 1600mhz
Hard Drive	Hard Drive	Hard Drive	Hard Drive
Seagate 3TB 7200.14 - ST3000DM001-9YN166	WD Black 640GB - WD6401AALS	WD Green 1.5TB - WD15EARS	Hitachi 2TB 7200RPM - HDS723020BLA642
Hard Drive	Hard Drive	Hard Drive	Hard Drive
WD 2TB Green - WD20EARX	WD 2TB Green - WD20EARS	WD Blue 500GB - WD5000AAKS-00V6A0	WD Scorpio Black 500GB - WD5000BEKT-00KA9
Optical Drive	Optical Drive	Optical Drive	Cooling
Pioneer DVR-115DBK	Samsung SH-S243D/BEBE	LG GH22NS90	Coolit Eco R120
Cooling	Cooling	OS	OS
Yate Loon Fans - D12SL-12-RED/BLACK	Fractal Design 120mm Fan - FD-FAN-120	Windows 7	Ubuntu 10.04 LTS
Monitor	Keyboard	Power	Case
Samsung 2343BWX 23" (2048x1152)	I-Rocks KR-6170-BK	Corsair HX620	Fractal Design Define R3
Mouse	Mouse Pad	Audio	Audio
Razer Abyssus 3500DPI	Mousepad + Desk	Onboard Realtek® ALC 892	Cyber Acoustics CA-2992 2.0 Speakers
Other	Other	Other
Razer Krait 1600 DPI	nGear G-C1601 Card Reader	Pisen Card Reader
View all

CPU	Motherboard	Graphics	RAM
VIA Eden C7 1200mhz	Jetway J7F4K1G2ES-LF	VIA Onboard	512MB PC2-4200
Hard Drive	Optical Drive	Cooling	OS
A-Data FlashDrive	None	Fanless	Linux
Monitor	Keyboard	Power	Case
Headless	None	65w Power Brick	Antec ISK300-65
Mouse	Audio
None	Onboard VIA
View all

CPU	Motherboard	Graphics	RAM
Barton XP-M 2400+ FJQ4C	Asus A7N8X-E Deluxe	256MB BFG 7800GS OC	2x512MB Samsung PC3200
Hard Drive	OS	Monitor	Keyboard
Raptor 74GB/Seagate 120GB	Windows 2000 Pro	60hz 17" CRT	Brandless PS2 Keyboard
Power	Mouse
Antec Neo HE 550w	Logitech G5
View all

hide details

CPU	Motherboard	Graphics	RAM
Phenom II X6 1055T	Saberooth 990FX	eVGA GTX 560 SE	4x4GB Corsair Vengeance 1600mhz
Hard Drive	Hard Drive	Hard Drive	Hard Drive
Seagate 3TB 7200.14 - ST3000DM001-9YN166	WD Black 640GB - WD6401AALS	WD Green 1.5TB - WD15EARS	Hitachi 2TB 7200RPM - HDS723020BLA642
Hard Drive	Hard Drive	Hard Drive	Hard Drive
WD 2TB Green - WD20EARX	WD 2TB Green - WD20EARS	WD Blue 500GB - WD5000AAKS-00V6A0	WD Scorpio Black 500GB - WD5000BEKT-00KA9
Optical Drive	Optical Drive	Optical Drive	Cooling
Pioneer DVR-115DBK	Samsung SH-S243D/BEBE	LG GH22NS90	Coolit Eco R120
Cooling	Cooling	OS	OS
Yate Loon Fans - D12SL-12-RED/BLACK	Fractal Design 120mm Fan - FD-FAN-120	Windows 7	Ubuntu 10.04 LTS
Monitor	Keyboard	Power	Case
Samsung 2343BWX 23" (2048x1152)	I-Rocks KR-6170-BK	Corsair HX620	Fractal Design Define R3
Mouse	Mouse Pad	Audio	Audio
Razer Abyssus 3500DPI	Mousepad + Desk	Onboard Realtek® ALC 892	Cyber Acoustics CA-2992 2.0 Speakers
Other	Other	Other
Razer Krait 1600 DPI	nGear G-C1601 Card Reader	Pisen Card Reader
View all

CPU	Motherboard	Graphics	RAM
VIA Eden C7 1200mhz	Jetway J7F4K1G2ES-LF	VIA Onboard	512MB PC2-4200
Hard Drive	Optical Drive	Cooling	OS
A-Data FlashDrive	None	Fanless	Linux
Monitor	Keyboard	Power	Case
Headless	None	65w Power Brick	Antec ISK300-65
Mouse	Audio
None	Onboard VIA
View all

CPU	Motherboard	Graphics	RAM
Barton XP-M 2400+ FJQ4C	Asus A7N8X-E Deluxe	256MB BFG 7800GS OC	2x512MB Samsung PC3200
Hard Drive	OS	Monitor	Keyboard
Raptor 74GB/Seagate 120GB	Windows 2000 Pro	60hz 17" CRT	Brandless PS2 Keyboard
Power	Mouse
Antec Neo HE 550w	Logitech G5
View all

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post #3 of 4

8/4/10 at 6:41pm

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Zhany
3.5ghz

Joined: Jun 2010
Location: Arizona
Posts: 612
Rep: 39 (Unique: 36)
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thank you for that explanation so basically a lot of overhead in the process

CPU	Motherboard	Graphics	RAM
AMD Phenome II X6 1100T	Asus Crosshair IV Formula	GTX 470	G.SKILL Ripjaws Series 8GB (4 x 2GB)
Hard Drive	Optical Drive	OS	Power
SAMSUNG Spinpoint F3 HD103SJ 1TB 7200 RPM	Hp dvd1260	Windows 7 Professional(64bit)	Antec True power Quattro 1200w
Case
NZXT Phantom
View all

hide details

CPU	Motherboard	Graphics	RAM
AMD Phenome II X6 1100T	Asus Crosshair IV Formula	GTX 470	G.SKILL Ripjaws Series 8GB (4 x 2GB)
Hard Drive	Optical Drive	OS	Power
SAMSUNG Spinpoint F3 HD103SJ 1TB 7200 RPM	Hp dvd1260	Windows 7 Professional(64bit)	Antec True power Quattro 1200w
Case
NZXT Phantom
View all

hide details

post #4 of 4

8/4/10 at 6:50pm

Kramy
Storage Nut

Joined: May 2005
Location: Canada
Posts: 9,405
Rep: 1050 (Unique: 785)
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Basically.

It follows that procedure, in order, for every copy. Although it can cache the entire MFT to save one of the steps - it has to write MFT records every time it writes a new file. If it didn't, you'd have large gaps in time where a power failure or crash would destroy multiple files, and possibly lead to filesystem corruption.

Of course, there may be a way to get partially around it.

http://www.windowsreference.com/wind...s-server-2008/

But Windows still seems to favour keeping the queue very low - as close to zero as possible, so that if you suffer a power failure or BSOD, you lose at most a couple files.

CPU	Motherboard	Graphics	RAM
Phenom II X6 1055T	Saberooth 990FX	eVGA GTX 560 SE	4x4GB Corsair Vengeance 1600mhz
Hard Drive	Hard Drive	Hard Drive	Hard Drive
Seagate 3TB 7200.14 - ST3000DM001-9YN166	WD Black 640GB - WD6401AALS	WD Green 1.5TB - WD15EARS	Hitachi 2TB 7200RPM - HDS723020BLA642
Hard Drive	Hard Drive	Hard Drive	Hard Drive
WD 2TB Green - WD20EARX	WD 2TB Green - WD20EARS	WD Blue 500GB - WD5000AAKS-00V6A0	WD Scorpio Black 500GB - WD5000BEKT-00KA9
Optical Drive	Optical Drive	Optical Drive	Cooling
Pioneer DVR-115DBK	Samsung SH-S243D/BEBE	LG GH22NS90	Coolit Eco R120
Cooling	Cooling	OS	OS
Yate Loon Fans - D12SL-12-RED/BLACK	Fractal Design 120mm Fan - FD-FAN-120	Windows 7	Ubuntu 10.04 LTS
Monitor	Keyboard	Power	Case
Samsung 2343BWX 23" (2048x1152)	I-Rocks KR-6170-BK	Corsair HX620	Fractal Design Define R3
Mouse	Mouse Pad	Audio	Audio
Razer Abyssus 3500DPI	Mousepad + Desk	Onboard Realtek® ALC 892	Cyber Acoustics CA-2992 2.0 Speakers
Other	Other	Other
Razer Krait 1600 DPI	nGear G-C1601 Card Reader	Pisen Card Reader
View all

CPU	Motherboard	Graphics	RAM
VIA Eden C7 1200mhz	Jetway J7F4K1G2ES-LF	VIA Onboard	512MB PC2-4200
Hard Drive	Optical Drive	Cooling	OS
A-Data FlashDrive	None	Fanless	Linux
Monitor	Keyboard	Power	Case
Headless	None	65w Power Brick	Antec ISK300-65
Mouse	Audio
None	Onboard VIA
View all

CPU	Motherboard	Graphics	RAM
Barton XP-M 2400+ FJQ4C	Asus A7N8X-E Deluxe	256MB BFG 7800GS OC	2x512MB Samsung PC3200
Hard Drive	OS	Monitor	Keyboard
Raptor 74GB/Seagate 120GB	Windows 2000 Pro	60hz 17" CRT	Brandless PS2 Keyboard
Power	Mouse
Antec Neo HE 550w	Logitech G5
View all

hide details

CPU	Motherboard	Graphics	RAM
Phenom II X6 1055T	Saberooth 990FX	eVGA GTX 560 SE	4x4GB Corsair Vengeance 1600mhz
Hard Drive	Hard Drive	Hard Drive	Hard Drive
Seagate 3TB 7200.14 - ST3000DM001-9YN166	WD Black 640GB - WD6401AALS	WD Green 1.5TB - WD15EARS	Hitachi 2TB 7200RPM - HDS723020BLA642
Hard Drive	Hard Drive	Hard Drive	Hard Drive
WD 2TB Green - WD20EARX	WD 2TB Green - WD20EARS	WD Blue 500GB - WD5000AAKS-00V6A0	WD Scorpio Black 500GB - WD5000BEKT-00KA9
Optical Drive	Optical Drive	Optical Drive	Cooling
Pioneer DVR-115DBK	Samsung SH-S243D/BEBE	LG GH22NS90	Coolit Eco R120
Cooling	Cooling	OS	OS
Yate Loon Fans - D12SL-12-RED/BLACK	Fractal Design 120mm Fan - FD-FAN-120	Windows 7	Ubuntu 10.04 LTS
Monitor	Keyboard	Power	Case
Samsung 2343BWX 23" (2048x1152)	I-Rocks KR-6170-BK	Corsair HX620	Fractal Design Define R3
Mouse	Mouse Pad	Audio	Audio
Razer Abyssus 3500DPI	Mousepad + Desk	Onboard Realtek® ALC 892	Cyber Acoustics CA-2992 2.0 Speakers
Other	Other	Other
Razer Krait 1600 DPI	nGear G-C1601 Card Reader	Pisen Card Reader
View all

CPU	Motherboard	Graphics	RAM
VIA Eden C7 1200mhz	Jetway J7F4K1G2ES-LF	VIA Onboard	512MB PC2-4200
Hard Drive	Optical Drive	Cooling	OS
A-Data FlashDrive	None	Fanless	Linux
Monitor	Keyboard	Power	Case
Headless	None	65w Power Brick	Antec ISK300-65
Mouse	Audio
None	Onboard VIA
View all

CPU	Motherboard	Graphics	RAM
Barton XP-M 2400+ FJQ4C	Asus A7N8X-E Deluxe	256MB BFG 7800GS OC	2x512MB Samsung PC3200
Hard Drive	OS	Monitor	Keyboard
Raptor 74GB/Seagate 120GB	Windows 2000 Pro	60hz 17" CRT	Brandless PS2 Keyboard
Power	Mouse
Antec Neo HE 550w	Logitech G5
View all

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