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SATA questions
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17. March 2006 @ 08:50 |
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I tried searching through the forums for Sata, but there's like 100+ threads, I looked through a few, but didn't find the answers I was looking for.
I know SATA is faster than IDE, I've seen MOBO's that say their SATA port is 150mb/s, and others that say it's 1.5gb/s.. IF the HD I am getting has a 300MB/s data transfer rate? Will I benefit from the 1.5?? Also what is SATA II, and what are RAID1/0 functions?? I guess I'm just old school, don't much about anything not IDE.
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tocool4u
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17. March 2006 @ 09:07 |
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Well, RAID 0 is if you have 2 HDD's and you set it up on the RAID then it will act as 1 HDD..so if 1 HDD fails the other 1 will have all the information on it...Same thing for RAID 1-5 just if you have more HDDS
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Member
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17. March 2006 @ 09:14 |
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Oh okay, well that helps, but I'm really confused about this SATA thing..
Quote:
The UL8 also supports SATA 1.5Gbps data transfer rate
but on another MOBO
Quote:
Four S-ATA II ports from nForce4 Ultra with up to 300MBps bandwidth
SO why do some processors boast 1.5Gbps dtr, and some boast 150Mbs dtr, while others boast the "newer" SATA II at 300Mbps dtr???
Is this all a marketing thing??
Just went and read my message and I realized 1.5Gbps is actually SLOWER than 300MBps... So it's an avertising Scheme??
This message has been edited since posting. Last time this message was edited on 17. March 2006 @ 09:16
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Senior Member
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17. March 2006 @ 09:22 |
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300mbp is like 3gbs which is the new SATAII or Sata2 connections, the old typ is 150mbs or 1.5gbs which is know as SATA or Sata1.
System 1 :- Main PC: AMD XP 3200+ - OC Slightly 2.31Ghz, 1024 MB DDR PC2700, 1 x 40GB Hard Drive, 1 x 60GB Hard Drive, ATI 9600XT (256 MB)Graphics Card.
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System 2: Downloading PC: AMD Sempron 2500+, 512 MB DDR PC2700, 1 x 40GB Hard Drive.
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AfterDawn Addict
4 product reviews
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17. March 2006 @ 14:07 |
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No. That RAID Info is wrong. Sorry to sound vulgar, but it's important.
RAID 0 is a stripe, the disk drives have synchronous data like one drive, but only one copy. If one drive fails, ALL the data is lost. However, it's good for capacity and speed.
RAID 1 is a mirror, good for contingency. Two drives only give you the capacity of one, but upped speed and greater reliability - if a drive goes, all the data is on the other.
RAIDs 3,5,0+1,1+0 are all combinations and/or variations upon these, but usually only available with dedicated cards rather than standard RAID controllers.
With S-ATA 1 (the original version) max speed is 150MB/s (megabytes) or 1200Mb/s (megabits). In later incarnations, S-ATA II is 300MB/s (megabytes) or 2400Mb/s (megabits). However, to confuse things more it can be used at speeds of up to 3000Mb/s (375MB/s).
IDE is limited to a maximum of 133MB/s with ATA133 and 100MB/s with ATA100, being 1066Mb/s and 800 respectively, far short of the 3000 SATA 2 offers.
HOWEVER, with normal drives the most you can expect per drive is about 500Mb/s, so unless you're RAIDing 4 or more drives together, SATA one is adequate. Raptor drives will do about 700Mb/s but even so you need three to over-saturate the older SATA interface.
One other boon SATA has is NCQ, meaning that the drives sort their list of jobs out separate from any software, optimising read times, lowering latency and upping speed. Generally only SATA Drives have these, and not all of them, be sure to look out for it, it makes a difference.
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Member
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17. March 2006 @ 17:24 |
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You will gain little or barley any performance over ata, unless you have 10,000< drives.
fugg it
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AfterDawn Addict
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18. March 2006 @ 00:21 |
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The performance increase won't be great, but S-ATA drives are often more modern designs than their PATA (IDE) counterparts. Plus of course, as I mentioned they use NCQ. In some cases, they're also cheaper, and if you're interested in RAID arrays, whether for reliability or for performance, the majorty of motherboards (even my OEM-specific board) allow for integrated S-ATA RAID, without the need to buy an expensive controller card.
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Member
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18. March 2006 @ 09:35 |
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Member
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18. March 2006 @ 11:22 |
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Wow, My eyes hurt. I just read http://en.wikipedia.org/wiki/RAID and wow. It all makes sense now. Well as good of sense as it can make unless I actually use it.. I can see the uses for Alot of the RAID functions, expecially RAID 50 (RAID 5+0), I like the idea of the Mirror drive, doubling transfer rates, but cutting disc space in half. The RAID 50 example looks like it takes a minumum of 6 HD's... I just can't imagine having that much going on... I guess RAID isn't for me. Oh yeah, it talks about JBOD to, in case anyone else didn't know what it was it's basically reverse partitioning. Instead of taking one Big HD, and making it into 2 or more smaller ones, it takes 2 or more small HD's and makes one big one.
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AfterDawn Addict
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18. March 2006 @ 11:27 |
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JBOD actually just means "Just a bunch of drives". Seriously.
Basically it means it supports using the drives on their own, rather than using any RAID configuration.
What you've listed is RAID 0. Reverse partitioning is exactly what RAID 0 does, one big drive from numerous smaller ones. four 250GB drives in RAID 0 will make one 1000GB drive, running near 4x the speed. Four 250GB drives in RAID 1 will make one 250GB running about 2x the speed, but 4x the data reliability.
This message has been edited since posting. Last time this message was edited on 18. March 2006 @ 12:05
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tocool4u
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18. March 2006 @ 15:11 |
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@ sammoris....Thats wrong..Raid 0 is a mirror and that when you set up Raid and the data is "mirrored" on both disks...so if 1 fails the other 1 has all the data...My dad works at IBM and works with communications....I might not of said that right but i know that for 1 thing that if 1 drive fails the other is a backup
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AfterDawn Addict
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18. March 2006 @ 15:30 |
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@tocool4u
actually, sammorris is CORRECT and YOU are wrong~ :) sorry man...RAID 1 is the "mirrored" one, RAID 0 is the "striped" one...while it IS possible to recover data if one of the drives fail on RAID 0, it will more than likely be corrupt or damaged~ :)
when you say, if one drive fails the other is the backup, that is using RAID 1 ("mirrored effect"), not RAID 0 as you previously assumed...
it's all good that your dad works at IBM, however, with the information presented HERE, sammorris is 100% correct and in this case, you are 100% wrong~
docTY~
Recommended Media:
Taiyo Yuden 4x dvd-r TYGO1/ 8x dvd-r TYGO2/ 8x dvd+r YUDEN000T02/ 16x dvd+r YUDEN000T03
Verbatim 8x dvd+r MCC003
Verbatim dvd+r DL (MKM001)= flawless no compression backups
"Do Yourself A Favor, Use The Good Stuff
TY & Verbs 4 Life~ :)" ~docTY~
"Its better to be quiet and appear stupid, then to open your mouth and remove all doubt."
I am always prepared to recognize that there can be two points of view - mine and one that is probably wrong - John Gorton
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tocool4u
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18. March 2006 @ 15:41 |
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This is what i said "I might not of said that right but i know that for 1 thing that if 1 drive fails the other is a backup"
so i messed up the RAID o and Raid 1........And i knew the mirrored 1 was the backup one so that proves i meant RAID 1
OK........HAPPY
So assuming that Sammoris is right sorry..............
This message has been edited since posting. Last time this message was edited on 18. March 2006 @ 15:45
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AfterDawn Addict
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18. March 2006 @ 15:48 |
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@tocool4u
nobody is attacking you here, just mearly stating and correcting some misinformation that i saw, your exact quote was this Quote:
@ sammoris....Thats wrong..Raid 0 is a mirror and that when you set up Raid and the data is "mirrored" on both disks...so if 1 fails the other 1 has all the data...
you blatantly stated that Raid 0 is a mirror, that is the ONLY portion of your post that i was pointing out is incorrect~
don't get so worked up over a simply correction, we all make mistakes, but for the BENEFIT of all the others reading this thread and have questions regarding SATA, some CORRECT/ACCURATE information needs to be addressed...
i have nothing against you, simple correction, that is all...no need to trip...
docTY~
Recommended Media:
Taiyo Yuden 4x dvd-r TYGO1/ 8x dvd-r TYGO2/ 8x dvd+r YUDEN000T02/ 16x dvd+r YUDEN000T03
Verbatim 8x dvd+r MCC003
Verbatim dvd+r DL (MKM001)= flawless no compression backups
"Do Yourself A Favor, Use The Good Stuff
TY & Verbs 4 Life~ :)" ~docTY~
"Its better to be quiet and appear stupid, then to open your mouth and remove all doubt."
I am always prepared to recognize that there can be two points of view - mine and one that is probably wrong - John Gorton
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tocool4u
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18. March 2006 @ 15:49 |
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I know that but in my last post i said that since i said mirrored i meant RAID 1 the second post was a mistake
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AfterDawn Addict
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18. March 2006 @ 15:51 |
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it's all good, simple mistake, like i said, we ALL make mistakes...let it slide...and continue on... no harm, no foul.
docTY~
Recommended Media:
Taiyo Yuden 4x dvd-r TYGO1/ 8x dvd-r TYGO2/ 8x dvd+r YUDEN000T02/ 16x dvd+r YUDEN000T03
Verbatim 8x dvd+r MCC003
Verbatim dvd+r DL (MKM001)= flawless no compression backups
"Do Yourself A Favor, Use The Good Stuff
TY & Verbs 4 Life~ :)" ~docTY~
"Its better to be quiet and appear stupid, then to open your mouth and remove all doubt."
I am always prepared to recognize that there can be two points of view - mine and one that is probably wrong - John Gorton
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tocool4u
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18. March 2006 @ 16:23 |
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I am kinda interested in this stuff...But my dad says that if you have 3 drives on RAID 0 ..And how it is striped.....That it has an archive Bit...So all the Information will stored in the Archive Bit then could be sent to the drives
P.S i am not starting an argument..Just want to know this stuff
LOL...I am learning alot for my AGE
This message has been edited since posting. Last time this message was edited on 18. March 2006 @ 16:26
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The_OGS
Senior Member
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18. March 2006 @ 17:03 |
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It is useful to talk about Mirroring (for safety); or Striping (for performance); or Striping with Parity (for both :^)
The actual RAID numbers can be confusing and difficult to remember...
But it is important to understand the concepts.
Regards
ABit AB9 Pro
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ATI Radeon X1900XT 512MB
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320GB/16MB WD, 150GB/16MB Raptor
Plextor PX-755SA DVD (SATA)
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AfterDawn Addict
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19. March 2006 @ 13:20 |
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Quote:
LOL...I am learning alot for my AGE
Me too, I'm 17, and 5 years ago I knew barely anything about computers, other than how to use them, to a degree. When I was 12 someone managed to uninstall the CD-ROM driver on a junior school computer. No one knew how to fix it at the time, now it's probably one of the easiest things to fix in the world!
I'm not digging at you at all mate, just correcting you so you know more!
This message has been edited since posting. Last time this message was edited on 19. March 2006 @ 13:20
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tocool4u
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19. March 2006 @ 13:32 |
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Yep but i am only 14 ...LOL
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AfterDawn Addict
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19. March 2006 @ 13:55 |
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We all have to start somewhere... :D Actually you're not doing bad, I'd not heard of RAID when I was 14, and yet I've been using it for the past 6 months now...
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ninascrol
Newbie
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22. March 2006 @ 15:33 |
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can anyone explain to me the role of a raptor harddrive. How do u intall them what do they do, how do they work etc>>.....
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Member
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22. March 2006 @ 15:58 |
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I don't own one, so don't take my opinion as "expert" but RAPTOR is just the 10,000 RPM drive by Western Digital. It's just a fast HD.
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AfterDawn Addict
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23. March 2006 @ 04:54 |
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Raptors are no different from any other S-ATA drive in terms of installation, but they're terrifically fast. All you do is screw them in, plug them in and off you go.
They're fast because they use command queuing (an early form of NCQ which allowed for faster data access) and use a 10,000rpm spindle, with 4ms latency (versus 7200rpm and 8ms latency). This essentially makes them 50%+ faster than normal drives, but obviously the capacity isn't great, and they are expensive.
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Senior Member
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23. March 2006 @ 11:57 |
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I've been lurking, and since the topic shifted towards raptors, I must throw in my opinion. Everything Sammorris and byron02 said is true, but its one of those things that you can read the numbers and specs, but dont appreciate the full value until used for a while. Like that first time (years ago to some) that you asked yourself, is there really that big of difference in 512mb vs 1GB of memory? Then you actually do it and say wow. Powers up in a blink of an eye, and I know some of these functions are processor based, but I swear theres less lag waiting for a program to open, opening stored files, all that good stuff.
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