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Hardware Thread, Does SATA II and SATA I Work Together? in Technical; Ive just brought a 10000rpm SATA I HDD for my home machine with better performance results then SATA II. But ...
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    Does SATA II and SATA I Work Together?

    Ive just brought a 10000rpm SATA I HDD for my home machine with better performance results then SATA II.

    But I also brought a SATA II HDD that i want to use. The motherboard supports SATA II and SATA I but I wasnt sure if the chipset slows down to just SATA I?

    Any ideas

    Thanks

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    contink's Avatar
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    Re: Does SATA II and SATA I Work Together?

    Shouldn't make any difference AFAIK...

    Just check there's no pin connectors you need to setup for your particular drive.

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    Re: Does SATA II and SATA I Work Together?

    Ok ive just read up on SATA and basically they say they work at what ever they are set to..

    SATA150 can read/write about 150mb/sec
    SATA300 can do double at 300mb/sec.

    Now if i transfer from SATA I to a SATA II drive, the SATA II bus will slow to SATA I. But the arguement here is, most HDD's cant read and write that fast anyway and that SATA II is more future proof for when faster drives to come available. We are nearing the limit of SATA I.

    So tell me if this makes sense as to what im going to do...

    HDD1 - 150GB Raptor X, SATA150, 10000 rpm, 16MB Cache, 4.6 ms, NCQ is going to be used for the OS and partitioned with the rest being used for virtual machines.

    HDD2 - 160 Gb Western Digital WD1600YS Caviar RE, SATA300, 7200 rpm, 16MB Cache, 8.9 ms, NCQ is basically for data.

    Now the purpose for this upgrade is for VMware as running 2 - 3 VM's takes its toll on a 2Ghz machine with 1gb ram and 1 ATA133 HDD.

    Or would I get better results running the primary OS off HDD2 and running demanding VM's off the other HDD?

    Just wondering what you'd do?

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    Re: Does SATA II and SATA I Work Together?

    Quote Originally Posted by techyphil
    We are nearing the limit of SATA I.
    Oh no we're not. Even the fastest S-ATA hard drive can barely sustain 80MB/sec at the moment. Faster interfaces do not make faster drives. Just like with old UltraDMA before it the new interface speeds are just there for the marketeers. Even the fastest 15000rpm hard drives wouldn't be able to utilise all the bandwith a single SATA port offers. The only thing that comes close is the iRAM device that Gigabyte put out a while ago.

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    Re: Does SATA II and SATA I Work Together?

    Okie Dokie Norphy,

    Your probably right mate, thats the bottle neck of our servers. Disk queueing for miles. We had some dudes come in today actually about getting 10gb links in and i was like 8O . I said surely it wouldnt make alot of difference in that logging on etc is fine, its when data is being taken to and from the servers that causes slow downs and surely thats down to the HD's?

    Umm well thanks again, I just said what i read about the speeds. Prehaps they are talking about special drives that are edgeing towards it.

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    Re: Does SATA II and SATA I Work Together?

    Just incase anyone wanted to know...

    ive gone for a 36Gb Raptor as the System HDD which uses SATAI

    ive also got 2x250 with 16mb Cache running on SATA II in Raid0


    and wow -- damn quick!! works a treat. 16mb/sec on both drives and pwns our new dell machines at work which read/write about 5mb/sec.

    Neways

    ch0w



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