SATA mixed with PATA

[David Lewis]

Hi Guys

I was wondering if there were any incompatibility issues mixing SATA hard
discs in the system with conventional IDE drives?Each on their own
bus/controller of course. I am thinking of upgrading to SATA for perhaps my
boot drive,video capture, and applications?.....using existing IDE for
storage,backup and mirroring etc. Can the two systems work together?

TIA

 

[Joe]

The two work fine together, however how do you plan on
connecting the SATA? Does your motherboard support both
systems or do you plan on using a PCI card? Keep in mind
that using a PCI card will actually limit your bandwith on
the pci bus and you probably won't see the true potential
of SATA (150mb/sec).

 

[David Lewis]

The two work fine together, however how do you plan on
connecting the SATA? Does your motherboard support both
systems or do you plan on using a PCI card? Keep in mind
that using a PCI card will actually limit your bandwith on
the pci bus and you probably won't see the true potential
of SATA (150mb/sec).

Joe
Thanks for reply
Sata connected via contrller on motherboard which I gather kicks in above
the PCI bus.
So I gather you can "drag and drop" folders from SATA to PATA drive and
otherwise treat them as equivalent from an operational point of view (except
wiyh SATA having faster read/write times)

 

[patricko]

SATA RAID 0 strip 128 Wow, with 2 WD SATA 120gig HD's and also have a ATA
100 WD hd have no problems I think you will have to go RAID to see the full
benefits of the SATA drives

Just my opinion heck I could be wrong


| Alex Nichol wrote:
|
| >
| > Operationally they will be handled by Windows in exactly the same way.
| > But I don't think you should expect to find appreciable improvement in
| > performance from SATA over the same drive mechanism connected in the
| > regular way via UDMA 133 or even 100. At these levels the limitations
| > are far more the rate of fundamental reading from the drive, and most
| > importantly those of seek time.
|
|
| Alex,thanks for reply.I think 'the penny just dropped'. SATA has a 150MB/s
| bus speed.The Read and write and seek times for the Hard drive are the
same
| whether using PATA or SATA Bus (seek times are faster with SCSI but let's
| not go there!).No drive can handle thruputs much faster than ??100MB/s
(less
| than 133 anyway) and not withstanding large write buffers,UDMA or
| whatever.The issue here is *THRUPUT*
|
| > If building a new machine with new drives, by all means get SATA,
| > but don't really treat it as an upgrade until a new generation of
| > drives
| > comes along
|
| So the only reason to go SATA is not to share the Bus with other
| Channels/drives as you do on a PATA set up?Obviously if your video capture
| drive shares a channel with a bandwith sucking device then you may have
| problems dropping frames and the like?I have also heard that a slow device
| drags down the speed of the channel ? due to limiting access time of the
| faster device.If you have one device per channel then it gets the whole
| 133MB/s bandwidth.If you have a lot of devices you would need extra
| controllers to avoid sharing channel bandwidth....I'm not sure what
| additional problems this would cause?
|
| Is there any reason then to Go SATA for best general performance and such
| tasks as video editing/capturing?
|
| Many thanks
|
|
| --
| Kind Regards,
| David
|
|
|