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	Seagate Technology - Często zadawane pytania dotyczące technologii Native Command Queuing (NCQ) interfejsu Serial ...
		W przeciwnym razie technologia NCQ nie będzie używana.
		Dyski twarde z obsługą technologii NCQ będą pracowały poprawnie z kontrolerami lub płytami głównymi, które nie obsługują tej technologii.
		Nie będzie jednak można korzystać z technologii NCQ.
	www.seagate.com /ww/v/index.jsp?locale=pl-PL&name=Serial_ATA_(SATA)_Native_Command_Queuing_(NCQ)_FAQs_-_Seagate_Technology&vgnextoid=2e1b76e7420de010VgnVCM100000dd04090aRCRD (301 words)

	Native Command Queuing - Wikipedia, the free encyclopedia
		Native Command Queuing (NCQ) is a technology designed to increase performance of SATA hard disks by allowing the individual hard disk to receive more than one I/O request at a time and decide which to complete first.
		Note that while command queuing can be a tremendous help if there are multiple outstanding I/O requests, NCQ adds a small amount of overhead to single requests, resulting in slightly lower performance on some single-threaded benchmarks typical of single-user computer use.
		For NCQ to be enabled, it must be supported and turned on in the SATA controller driver and in the hard drive itself.
	en.wikipedia.org /wiki/Native_command_queueing (327 words)

	V I P E R L A I R .com - Native Command Queuing & Seagate's Barracuda 7200.7, Page 1/4
		NCQ is tied in closely with Hyper-Threading, and combined with HT capable hardware and software, the performance differences should be quite substantial when compared to non-NCQ drives.
		NCQ drives don't mean much without a controller, and like the drives, the controller support is a little slim right now.
		NCQ thrives on multithreaded and multitasking situations, and the truth is, not many desktop applications and games tap into this.
	www.viperlair.com /reviews/storage/hdd/seagate/72007 (1575 words)

	NCQ (Native Command Queuing) and TCQ (Tagged Command Queuing) Explained \| Hardware Secrets
		NCQ (Native Command Queuing) and TCQ (Tagged Command Queuing) are features created to improve the hard disk performance by re-ordering the commands sent by the computer to the hard disk drive.
		NCQ was introduced with Serial ATA II, the same standard that introduced the new maximum transfer rate of 300 MB/s for Serial ATA, being targeted to mainstream hard disk drives.
		NCQ can deal with up to 32 commands at a time, while TCQ can deal with up to 216 commands (TCQ hard disk drives, however, can usually support a queue of “only” 64 commands).
	www.hardwaresecrets.com /printpage/315 (496 words)

	Seagate's Barracuda 7200.7 NCQ hard drive - The Tech Report - Page 1
		Since support for Native Command Queuing (NCQ) distinguishes the Barracuda 7200.7 NCQ from its predecessor, it's worth taking a moment to examine what NCQ is and where it might improve performance.
		NCQ allows a drive to gather multiple I/O requests and reschedule them based on their proximity to the drive head's position.
		NCQ can only improve performance when I/O requests reference different physical locations on a disk, so it can't do much for streaming drive loads unless a drive is heavily fragmented.
	www.techreport.com /reviews/2004q4/seagate-7200.7ncq/index.x?pg=1 (956 words)

	Is native SATA same as ncq SATA - LinuxQuestions.org
		NCQ (Native Command Queuing) is another name to queue a dozen jobs to the hard drive to access multiple files at once in a single head swipe.
		NCQ can be later included with a BIOS upgrade, so you can pick any motherboard brand and model.
		NCQ has nothing to do with SATA but it is a good feature for SATA to compete with SCSI.
	www.linuxquestions.org /questions/showthread.php?t=236501 (1030 words)

	HardAvenue.com - PC Tech and Hardware content
		NCQ technology will provide a new advantage in today's systems with Hyper-Threading Technology, which allows multiple applications to send I/O requests at the same time.
		NCQ will boost performance still more when applications take advantage of Asynchronous I/O. In addition, NCQ increases drive reliability in heavy workloads by eliminating much of the mechanical wear and tear that a non-NCQ drive must endure to transfer the same amount of data.
		NCQ is a command protocol in Serial ATA that can only be implemented on native Serial ATA hard drives like Seagate's.
	www.hardavenue.com /index.php?subaction=showfull&id=1083691056&archive=&start_from=&ucat=1& (702 words)

	Serial ATA
		NCQ is designed to improve performance and reliability as the transactional workload increases - When your application sends multiple commands to your drive, your drive can optimize the completion of these commands to reduce mechanical workload and improve performance.
		The results of NCQ are higher performance in heavy transactional workloads usually found in high performance workstations, network servers, multi-media servers and editing workstations.
		NCQ is designed into the Serial ATA interface but not all solutions have integrated it.
	www.sata-io.org /featureofmonth.asp (384 words)

	AnandTech - How important is NCQ? (Site not responding. Last check: )
		NCQ is useful if you will be using those drives to host data that will be shared on a network by several computers.
		NCQ is really there for lots of requests for data that would be scattered all over the drive.
		NCQ certainly isn't worth $100 even if you did have a file server IMO.
	forums.anandtech.com /messageview.cfm?catid=27&threadid=1890141 (935 words)

	Hard Drives with NCQ - ABXZone.com Forums
		It is possible that some future bios might be written to provide NCQ support, but I wouldn't depend on that.
		First of all, the supplied driver does not work to enable the NCQ, and last of all, NCQ made less than 1% difference having it on or off.
		NCQ is not likely to be a huge benefit in a desktop environment anyway - it's geared more towards servers from my understanding.
	www.abxzone.com /forums/showthread.php?t=89758 (580 words)

	Silicon Image - News & Events \| Press Releases
		NCQ is a feature that can only be implemented on native Serial ATA hard drives like Seagate's.
		SATA products with NCQ will provide a new advantage for the cost-sensitive entry-level server market in which SCSI's extremely high queue depth and feature rich command sets are not needed.
		NCQ will be implemented on production Barracuda 7200.7 SATA hard drives when system architectures that support NCQ become more broadly available.
	www.siimage.com /news/press/detailpressrelease.aspx?id=199 (1088 words)

	Maxtor DiamondMax 10: Exploring NCQ & RAID - Hot Hardware
		NCQ attempts to reduce latency and increase throughput by ordering the incoming read and write requests in the most efficient sequence to minimize head travel.
		A drive without NCQ will read the data at position 20, and then wait for the platters to make nearly a complete rotation to read the data at position 19.
		The NCQ enabled drive will rearrange the requests for 20 > 19 into 19 > 20 so the drive can read the data more efficiently without the additional rotation.
	www.hothardware.com /viewarticle.aspx?articleid=745&cid=4 (849 words)

	Motherboard and NCQ - Discussion@SR
		You'll either need a newer board or a dedicated controller for NCQ to be used.
		A rule-of-thumb seems to be: NCQ is good for networking (when several people are sending commands to the drive at the same time), but may not help the single (non-networked) desktop user.
		NCQ is probably not important for downloading stuff.
	forums.storagereview.net /index.php?act=ST&f=2&t=22611 (510 words)

	[No title]
		We have worked with these drive vendors to test the NCQ compatible disk drive firmware once the drive vendor provided it to us, and put this information on the 3ware disk drive compatibility list.
		The Hitachi 500 GB drive is an example of a drive that originally did not work with the 9550SX with NCQ enabled.
		WD is aware of those drives not properly supporting NCQ, but to date WD has not provided a disk drive firmware fix for 3ware to test.
	www.3ware.com /KB/Article.aspx?id=14881 (335 words)

	What is NCQ
		NCQ is the acronym for Native Command Queuing.
		NCQ was not supported in SATA-I. Without NCQ, commands are performed by the disk in the order in which they are received.
		If the commands are reads and writes of data scattered randomly across the disk, a lot of time can be wasted on long seeks (mechanically moving the head long distances) between successive read/write operations.
	www.dashdist.com /1u2u/company/NCQ.html (193 words)

	Sharky Extreme
		NCQ, or Native Command Queuing, is a feature that allows multiple commands to be queued simultaneously within the same physical drive.
		What NCQ really does is provide a more structured and efficient method of performing disk commands, so that the physical performance of the hard drive is fully maximized.
		The only real negative to NCQ is that it requires a compatible platform or add-in host controller, otherwise the NCQ feature will not be enabled.
	www.sharkyextreme.com /hardware/article.php/3527961 (857 words)

	CoolTechZone.com - Native Command Queuing [NCQ] Technology Explained: Page 4
		This is like delivering mail to the first house, skipping the second, delivering to the third, traveling several minutes to the fourth and delivering mail to it, and then returning to the second house to distribute mail.
		Hard drives with NCQ reorder the list by arranging the items by how close they are.
		While the immediate benefits of NCQ may not be presented, applications in the future may take advantage of this technology to maximize efficiency.
	www.cooltechzone.com /index.php?option=content&task=view&id=431&Itemid=0&limit=1&limitstart=3 (513 words)

	DriverHeaven.net - NCQ, RAM and DVD_RW questions
		Does anyone know what NCQ is? i saw that some of the sata hd's segate sell have this.
		For what I've seen of early sayings on NCQ by reputable sites like www.storagereview.com it does not seem to be anything to perticularly look for in a desktop system.
		So look through the manufacturer specs of a perticular board if you would like to have NCQ support just in case it would mean something in the future.
	www.driverheaven.net /showthread.php?t=63653 (433 words)

	Will we ever get useful NCQ support?
		Most have probably realized that NCQ can't be enabled on nforce drivers without causing data corruption.
		NCQ is not supported on nforce3, only TCQ.
		NCQ behaves a tad better and shows a slight perf increase but only in multi-user benchmarks that simulate multiple read/write request to the HDD which is untypical in desktop situations.
	www.nforcershq.com /forum/sat-jul-16-2005-746-pm-vp496178.html (528 words)

	Worth it to buy an NCQ drive? - Overclockers Forums
		Location: Gainesville, FL NCQ will not show a difference in everyday usage and games, raptor will win out here by a small to moderate margin.
		Also NCQ enabled will sometimes hinder performance instead of increase.
		I think a raptor 74GB should be big enough for XP Pro and all my programs...Since NCQ doesnt show any advantage, i guess ill just go with the standard drives.
	www.ocforums.com /showthread.php?t=366642 (444 words)

	PC Perspective / Amdmb Forums - NCQ support on K8N Neo2?
		I installed a NCQ drive but the option in the drivers is greyed out.
		Especially when NCQ is enabled by default from drivers 5.11 on...
		NCQ is not greyed-out for newer Sata and SataII drives.
	forums.pcper.com /showthread.php?t=399774 (1048 words)

	Is NCQ important in hard drives? - Short-Media Forums
		Second - in a home system you wouldn't notice a difference having NCQ or not.
		NCQ is only helpful where it was designed to be.
		It might actually do something on a HT enabled machine and you were running something in the background that was accessing files while you were doing something else.
	www.short-media.com /forum/showthread.php?t=18872&highlight=ncq (558 words)

	Seagate: NCQ soll SATA-Festplatten deutlich beschleunigen - Golem.de
		7.200er-SATA-Platten mit NCQ sollen Leistung von 10.000er-Platten erreichen
		Allerdings muss auch auf Seiten des Controllers NCQ unterstützt werden, um von der für Serial ATA II entwickelten Technik zu profitieren.
		NCQ versetzt eine ATA-Festplatte in die Lage, eingehende Befehle "intelligent" neu zu ordnen, bevor sie auf die Daten zugreift und diese wieder zum Verarbeiten an den Host schickt.
	www.golem.de /0405/31119.html (254 words)

	Western Digital Raptor WD1500
		Native Command Queuing (NCQ)'s impact has been something of a mixed bag when it comes to single-user performance.
		Maxtor's MaXLine III (and DiamondMax 10) stands as the lone offering that delivers better single-user performance with NCQ enabled, though it is not clear whether this is because Maxtor's implementation is truly superior or rather because the company's drives perform unusually poorly without it.
		Though the WD1500 remains a speedy unit when NCQ is enabled, we recommend disabling NCQ in non-server settings to obtain the best possible performance.
	www.storagereview.com /articles/200601/WD1500ADFD_8.html (211 words)

	Where did my NCQ go ? Asus A8N-SLI Help please
		NCQ was working fine, the box was already ticked.
		So i had done all of the above, i went to system devices to check all drivers were installed correctly, and to check NCQ, it was blanked out for the system raid disks, I can't put a tick in the box.
		Maxtor have probs on NF4 mobos with NCQ, turn it off till they release firmware, i had to dissable it on 7 rigs i built or they would randomly take 5-10mins to boot up or even never boot up other times they boot up fast, weird.
	www.nforcershq.com /forum/image-vp533857.html (437 words)

	NCQ Desktop Performance Test
		The purpose of this test is to examine desktop performance of hard drives with Native Command Queuing (NCQ).
		The cost difference between a NCQ and Non-NCQ drive though are very close and as NCQ becomes standard, they will likely be cheaper than a Non-NCQ drive.
		It is likely that NCQ will be a common feature on all controllers.
	mysite.verizon.net /res6pakd/ncq_desktop_performance_test.htm (984 words)

	VR-Zone : Technology Beats - Seagate Barracuda 400GB Hard Drive w/ NCQ
		Seagate's native SATA interface technology with NCQ enables the Barracuda 7200.8 to match the performance of 10,000-rpm SATA drives without sacrificing capacity, and at a much more economical cost per gigabyte.
		NCQ provides a new advantage in today's systems with Hyper-Threading Technology, which allows multiple applications to send I/O requests at the same time.
		NCQ boosts performance still more when applications take advantage of Asynchronous I/O. In addition, NCQ increases drive reliability in heavy workloads by eliminating much of the mechanical wear and tear that a non-NCQ drive must endure to transfer the same amount of data.
	www.vr-zone.com /?i=1461&s=1 (577 words)

	DESKSTAR 180 / NCQ / STA question - Overclockers Forums
		I have seen that the only disks that support NCQ in ATA drives are the IBM desk star series.
		First of all i would recommened against any IBM drives as they got taken over by Hitachi due to the poor quality control thus producing low quality drives that had a tendency to die very quickly.
		If you hold out though Seagate will soon be releasing a drive with NCQ as will Western Digital on the SATA format.
	www.ocforums.com /showthread.php?t=262070 (518 words)

	Attention Hitachi SATAII/NCQ owners! - Short-Media Forums
		The beauty of these drives is native NCQ not SATA300 speeds which btw neither HDTach nor ATTO can report accurately.
		ncq would usually be important in a application where the que depth is deeper and non sequential I-O is the norm.
		NCQ is already enable by default, check the properties of each drive.
	www.short-media.com /forum/showthread.php?t=29863 (817 words)

	X-bit labs Community :: View topic - Does Gigabyte K8NF-9 nForce4 4X support NCQ?
		ncq isn't in the specs for sata1, and therefore I don't think even the intel platform supports it.
		NCQ is a sata2 spec, not a sata1 spec.
		As for your original question, only the nf4 ultra and sli versions have native support for sata2 and ncq (i don't know about via).
	www.xbitlabs.com /forum/viewtopic.php?p=99220 (556 words)

	need a software that can recognize ncq drive - XtremeSystems Forums
		i have new wd raptor that made in 1 mar 05 (pic), i have some big suspicion that is support in ncq technology and i need to confirm that.
		If it does (and it should be) - then there is no chance for NCQ in your drive...
		the reason that i ask about the ncq is that pavel the technical man say that the new raptors are use ncq technology, its seems weird so i open that thread.
	www.xtremesystems.org /forums/showthread.php?t=67851 (335 words)

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