Got a SATA2 drive today and image a IDE to it but now can figure out SATA2 speed

[hellomynameis]

delete please

[Stupac]

Some sata2 drives have a jumper setting like the Seagate Barracuda's 7200.10. Also, some motherboards require the latest bios to support sata2. Don't forget to get the latest chipsets/sata drivers.

[nats1956]

Usually a image from a IDE drive to SATA will not work; because the drivers are not correct- missing the SATA drivers!

[hellomynameis]

When i use HDTach what should the speeds be for SATA2?

[LoStMaTt]

Make sure you have a true SATA2 cable as well. That won't fix your bluescreen but alot of HDD manufacturers and motherboard companies are sneaky and just send you the old SATA cable.

[hellomynameis]

how is a Sata2 cable different from a Sata cable?

[draksia]

Make sure you have a true SATA2 cable as well. That won't fix your bluescreen but alot of HDD manufacturers and motherboard companies are sneaky and just send you the old SATA cable.

There was no change in Spec for the cable between 1.5Gbps and 3.0Gbps speeds. Infact the change to 6.0Gbps will still not change the cable although there is talk about making a secure conector a requirement.

[tricky0502]

Hello I need help figuring out how to get the full SATA2 speed now

Ok i have looked the BIOS and set it to what i thought was SATA2 speed. Boot up and get BSOD.

Now I had a IDE hard drive and made a Image of it and the dump the image on the SATA2 drive. Do i just need to reinstall or can i do a repair?

you cant just dump a ide image onto a sata drive because windows will not have the driver. you'll have to reinstall.

also there isnt a sata I or II drive that will max out the sata II bandwidth.

[Grentz]

and for that matter, there is not a drive that will max out the SATAI bandwidth that is consumer grade (some server stuff with large numbers of drives I think can use the speed).

Even Raptor HDDs (the fastest SATA drives out there) only come with SATAI as they cannot use all the bandwidth.

[hellomynameis]

so then why do they make the SATA2 drives if I can not get the use of the full bandwith at all?

How can they say 3.0Gbps if that isnt possible?

[protias]

so then why do they make the SATA2 drives if I can not get the use of the full bandwith at all?

How can they say 3.0Gbps if that isnt possible?

The drive just cannot transfer that much. Once in Raid it is possible. My 8 disk Raid 5 array average reads are at 163MBps, which is a tad faster than SATA I speeds. It's for future purposes.

[draksia]

so then why do they make the SATA2 drives if I can not get the use of the full bandwith at all?

How can they say 3.0Gbps if that isnt possible?


The interface is physically running at 3.0Gbps its just the drive can't read or write data at any where near the speed.

[Stupac]

The interface is physically running at 3.0Gbps its just the drive can't read or write data at any where near the speed.

Yup. It's just like going PCI-e 2.0 for Bearlake chipset. All about the future bandwidth needs.;)

[Michael Daly]

The interface is physically running at 3.0Gbps its just the drive can't read or write data at any where near the speed.


But the disk cache can run faster than SATA 1.5 in burst mode. I've got a Hitachi that hits 275 MB/s burst mode according to HDTach (long test - repeatable.).

[hellomynameis]

But the disk cache can run faster than SATA 1.5 in burst mode. I've got a Hitachi that hits 275 MB/s burst mode according to HDTach (long test - repeatable.).


Ok how do you set a hard drive into burst mode?

[protias]

Ok how do you set a hard drive into burst mode?
You can't. I think he meant to say, when he benchmarked his drive, his burst read speed is faster than SATA I specifications. I highly doubt his average read was faster than SATA I speed.

[Michael Daly]

, his burst read speed is faster than SATA I specifications. I highly doubt his average read was faster than SATA I speed.

Exactly - sustained was well within SATA 1.5Gb speeds. However, if you are using the drive in real world situations, those short bursts of data can potentially use the bandwidth of the interface. Unfortunately, that won't make much of a difference in overall perception of speed.

[fuelvolts]

Ok how do you set a hard drive into burst mode?

Burst is not a setting, its the speed of the cache (8 or 16MB) to the mobo through the cable

[arcturus]

you cant just dump a ide image onto a sata drive because windows will not have the driver. you'll have to reinstall.

I did this yesterday and everything seems to be working just fine.

How do I confirm normal operation?

[freonchill]

if by "conform normal operation" you mean do a speed or interface test...

u can use hdtach or any other benchmark utility

[arcturus]

ok what speeds should I be pulling?

[drizzt81]

ok what speeds should I be pulling?

Well, you have yet to disclose what HDD you have, so it is rather difficult to make a guess what the average STR should be.

[arcturus]

lol, that's true.

Seagate 160gb SATA2, 7200.9.

[abcdelight]

My Burst speed on a SATA 3.0 WD 250 gb 16 mb cache was 169.1 mb (on Simpli Software) which was faster than a friends Raptor. The funny thing was I install OS on IDE in bios and no longer even bother with the F6 installs of SATA drives because I don't get a real world advantage worth the hassle. As a single user things like NCQ and hot swapping just don't help me. Enterprise people need that shizzle.

[drizzt81]

similar to this:
http://www.storagereview.com/php/benchmark/suite_v4.php?typeID=10&testbedID=4&osID=6&raidconfigID=1&numDrives=1&devID_0=304&devID_1=305&devCnt=2

arcturus: Next time, I suggest that you word your PM a little more friendly. Nobody on here is being paid to answer your questions. Courtesy goes a long way, you know.

[abcdelight]

Ah that's interesting comparison; it even shows single user games losing steam in NCQ - which is what Wiki said:

"Native Command Queuing (NCQ) is a technology designed to increase performance of SATA hard disks by allowing the individual hard disk to internally optimize the order in which received read and write commands are executed. This can reduce the amount of unnecessary going back-and-forth on the drive's heads, resulting in increased performance (and slightly decreased wear of the drive) for workloads where multiple simultaneous read/write requests are outstanding, most often occurring in server-type applications. However, the current technology actually slows down HD access in certain applications, like games and sequential reads, because of the added latency induced by NCQ logic"

http://en.wikipedia.org/wiki/Native_Command_Queuing

[arcturus]

similar to this:
http://www.storagereview.com/php/benchmark/suite_v4.php?typeID=10&testbedID=4&osID=6&raidconfigID=1&numDrives=1&devID_0=304&devID_1=305&devCnt=2

Comparing that article to what I'm seeing in HDTach the results are comparable.

Guess it's ok to dump an IDE image onto a SATA drive after all.



edit:

drizzt81, your 'suggestion' doesn't belong in a public forum. Take it offline next time via pm.

[LightningCrash]

edit:

drizzt81, your 'suggestion' doesn't belong in a public forum. Take it offline next time via pm.
^----- this guy acts like he's a moderator or something.


good for a chuckle, anyway. gotta learn to take it easy, mon. like bob marley.

[arcturus]

edit

[arcturus]

about 68mb/s sustained on my 7200.9