Related topics

NCQ?
1) NCQ won't enable: /sys/block/sda/device/queue_depth is "1" Trying to change that value gives: "permission denied" (as root) 2) Dmesg shows that the SATA drives are running at 1.5 Gb/sec. Booting with a DOS boot disk to run Samsung's HUTIL utility, it shows the drives as being in SATA 3.0Gb/sec mode,

NCQ?
Note that NCQ makes writes faster (oh... I have write cacheing turned off; perhaps I should turn it on and do another round), but no-NCQ seems to have a read advantage. %$%@#$@#ing bonnie++ overflows and won't print file read times; I haven't bothered to fix that yet. NCQ seems to have a pretty significant effect

NCQ - ?
Jeff Garzik j...@garzik.org fa linux kernel This patch adds NCQ support to the sata_mv driver. Currently it does not work: FPDMA commands time out, and eventually EH falls back to non-NCQ, which works. My attention has turned to other things for moment. Anybody interested in sata_mv NCQ is encouraged to pick up

Questions about SATA Hard Drive w NCQ
Kamikazee ni...@niema.pl.invalid pl comp pecet Q pisze: ktory dysk lepiej wybrac (do zastosowan standardowych / domowych): - WD 320GB, SATAII, 16MB, WD3201ABYS (Raid Edition) - bez NCQ - 233zl, - WD 320GB, SATAII, 16MB, WD3200AAKS, NCQ - 251zl ? czy warto "inwestowac" w NCQ? Tak o ile p³yta g³ówna wspiera NCQ.

Questions about SATA Hard Drive w NCQ
Most of the reports I've gotten recently have been in one of these categories: -broken NCQ implementation on the drive (usually shows up as commands timing out with CPB resp_flags of 2) -cabling or power problems (often showing errors in the SError register) There have been a few reports yet of problems with

Some NCQ numbers...
MC m...@go2.pl pl comp pecet Użytkownik "Q" <n...@spam.pl> napisał w wiadomo¶ci news:fq8oum$et1$1@atlantis.news.neostrada.pl... ktory dysk lepiej wybrac (do zastosowan standardowych / domowych): - WD 320GB, SATAII, 16MB, WD3201ABYS (Raid Edition) - bez NCQ - 233zl, - WD 320GB, SATAII, 16MB, WD3200AAKS, NCQ - 251zl

Czy warto brac dysk z NCQ ?
Chcialem kupic albo Seagate z NCQ /cichy niby + wydajnosc/ lub WDRaptor II /wydajnosc/. Po analizie potrzeb, cen i sensu inwestowania w rozwiazania topowe, lekturze usnetu (yeah, dzieki chlopaki:]!) jak tylko wpadnie troche wolnej kasy kupie sobie 120 GB ze stajni Samsunga lub Hitachi /jeszcze sie do konca nie

Czy warto brac dysk z NCQ ?
David Maynard dNOTm...@ev1.net alt comp hardware pc-homebuilt Odie Ferrous wrote: David Maynard wrote: Odie Ferrous wrote: NCQ has nothing to do with the interface data rate. You missed my point entirely. No, I understood your 'twit' point completely, and answered it directly, even as nonsensical as it was.

P4C800-E Deluxe & NCQ
Søren Schmidt s...@DeepCore.dk lucky freebsd hackers João Carlos Mendes Luís wrote: Hi, To use the advantages of SATA NCQ, do I have to use a specific controller, or is this only a software matter? Both actually, and a disk that supports it as well. I'm working on getting the ATA driver to handle NCQ (and the older

seagate z ncq w .pl
The onboard SATA controller of the nForce4-SLI chipset claims to be NCQ (or SATA II) capable, but nVidia implemented this feature in a not-AHCI-standardised way, but as an own solution. My question is: Is the FBSD 6.X driver for the nForce4-SLI chipset capable of using NCQ (as I know, the driver has to enable NCQ

EN12000 SATA controller not being used to full potential (3.0Gb / NCQ)
João Carlos Mendes Luís jo...@jonny.eng.br fa freebsd hackers Søren Schmidt wrote: João Carlos Mendes Luís wrote: Hi, To use the advantages of SATA NCQ, do I have to use a specific controller, or is this only a software matter? Both actually, and a disk that supports it as well. But then, if the controller should

seagate z ncq w .pl
Larry jackhandy0...@gmail.com edm forsale Sold...

Can NCQ capability be determinded from software?
NCQ == command queueing == sending multiple commands to the drive, rather than one-at-a-time like normal. But hdparm isn't the best test for that theory, since it does not simulate the transactions like real-world MD device usage does. We have seen buggy NCQ firmwares where performance decreases, so it is possible

Hitachi sata II 7k80 i NCQ???
Com microsoft public windows 64bit general The only NCQ I have read about is a feature of SATA II hard drives and is not OS dependent at all. The major problem I have seen is that some SATA I controllers are not SATA II, and NCQ, friendly. Also, some SATA II drives will not work on those 'unfriendly' SATA I

Questions about SATA Hard Drive w NCQ
Wilko Bulte wrote: Synopsis: Need SATA NCQ support SATA NCQ support is not supported at this time. I'm working on it as time permits and it will be there eventually. The nForce4 mentioned here is not likely to get support as nVidia does not give out documentation, and most nForce chips doesn't do NCQ at all.

Spurious completions during NCQ
Jens Axboe ax...@suse.de linux kernel On Wed, Mar 29 2006, Dan Aloni wrote: On Wed, Mar 29, 2006 at 01:13:52PM +0900, Tejun Heo wrote: Jens Axboe wrote: On Sun, Mar 26 2006, Dan Aloni wrote: Hello, I'd like to know about the current status of NCQ support in libata, whether anyone is actively working on it,

Disabling ADMA? (was Re: [PATCH] drivers/ata: Add the SW NCQ ...
NO n...@nema.com hr mag bug "nikola" <nibalicMAKN...@fesb.hr> je napisao u poruci interesnoj grupi:ccfjc05oj2k3$.1knoyx9uvbonn$....@40tude.net... pretpostavljam da kontroler mora podrzavati ncq da bi disk koristio ncq??? imam soltek 75frn2-rl (nforce2 sa promisse nekim xxxx...boga pitaj...da sad ne gledam) Nema.

RAID 10 w AHCI w NCQ = Spurius I/O error
Mike Walsh mikew...@sbcglobal.net alt comp hardware dmbf...@optonline.net wrote: I'm considering purchasing a Seagate 160GB Barracuda 7200.7 7200RPM SATA II with NCQ Hard Drive from newegg.com. This is model ST3160827AS. BTW my processor is an Intel Pentium 4 at 2000 MHz My machine does not support hyperthreading.

Some NCQ numbers...
Greg Stark gsst...@mit.edu linux kernel Jens Axboe <ax...@suse.de> writes: SATA is still pretty fast without NCQ, ... People have lived happily without NCQ support in SATA for years, I'm sure you could too :-) It kind of depends on your application. For applications that require write caching disabled like Postgres

NCQ
SATA is still pretty fast without NCQ, it just makes some operations a Do I take this as SATA is faster than legacy ATA? In what respect? UDMA/33 and SATA I shouldn't be much different if I use the same drive, or is there something? lot faster. But of course if you want the best, you would opt for some setup that