HT5219 thunderbolt, matrox, and esata drive conflicts

Hi I have a new 2012 imac 27" with two thunderbolt ports, I am using this for video editing, I also purchased the following devices:
1. matrox mini max .h264 I/O accelerator
2. laCie dual raid enclosure
3. sonnet echo pro to esata converter using the sonnet 6gb/s tempo express 34 card
all items are thunderbolt, I am on the latest 1.21 thunderbolt firmware, the latest matrox 3.11 firmware, the sonnet and lacie do not use any firmware.
Yesterday, I spent all day doing a complete wipe and reinstall of 10.7.4, I only installed Adobe Premiere Pro 6.01, with the associated apps. - encoder, bridge,
and prelude. I checked every library, system folder, extension, and preference and made sure nothing was in the system. System is 3.4ghz i7 imac 32gb of ram 1tb internal, 6790 graphics card with 2gb of vram.
I then loaded the latest matrox driver and restarted..
The issue at hand; I have recently in the last 7 days purchased all the items listed above to replace on of my two 2012 macbook pro 17" 2.4ghz laptops.
Using the matrox with one firewire drive was no problem, adding the echo pro with esata caused the matrox to crash, upon a restart of the computer with the two items installed via thunderbolt, premiere pro would crash on start up I could not start premiere pro without disconnecting the thunderbolt.
I also tested the same matrox with the lacie and tried using the dual port of the lacie thunderbolt to run the matrox, all tests resulted in either premiere pro crashing or the matrox not working. I even encountered an odd situation where the matrox would not power up. (I bought two matrox units) I was able to replicated the non powering up on both and thought both were damaged.
I did various tests over a two day period, using matrox and sonnet tech support, the only possible issue could have been my adobe creative suite version 5 and 6 being installed which is why I did the complete clean install.
I am 99% certain the issue is either the imac only has one bridge board and is split for looks, or the thunderbolt software has a major conflict with matrox's firmware. I was able to locate a certain bug with their software and the facetime camera which is now posted on their website..
I need an apple tech to tell me with certainty.
1 does the imac has two separate thunderbolt ports.
2 if each port allows 2 devices would that include items like the lacie having it's own 2 port setup.
3 would there be any chance the thunderbolt cables themselves need any kind of software updates
4. is there anything I can do to resolve this
Thanks David

I don't have a Thunderbolt machine but according to this article, Windows doesn't support Thunderbolt at all. That means Apple had to add Thunderbolt support in order for it to work even as it does. How would a Dell have solved your problem?
http://www.zdnet.com/more-thunderbolt-on-windows-compatibility-lessons-for-mac-o wners-7000021314/

Similar Messages

  • MSI 7125 board and Esata drive hot swapping

    Hello. New member with a MSI-7125 board. I have the OEM board that Geeks had. Pretty much the same as the regular 7125. I want to use an external eSATA drive and attach it using a simple eSATA bracket that just connects to the board's internal sata ports, or I will use a PCI controller card. I'm told that either will work, and that I can have hot swapping on either too.  I want to be able to turn on and off the drive without turning off windows. I don't want to use the external drive as my main drive. Can anyone confirm that either interface method will work? I'm supposing the simple bracket might be faster since it will have no PCI bus to go through. Thanks

    I've listed below a couple of sites that you may be intrested in. They offer the option of using eSATA or SATA on the rear plates. Don't confuse them as they use different plugs on the cables.
    http://www.macgurus.com/productpages/sata/SATACables.php
    http://www.firewire-1394.com/external-sata-solutions.htm
    http://www.cooldrives.com/insaexsa1ppc.html
    Russell

  • Can't daisy chain Thunderbolt 1 and 2 drives

    I have a Mac Mini server (mid 2011) with a Pegasus R4 connected via Thunderbolt that has been running fine. The Mini is running Lion Server.
    Just recently I got a Lacie 2big drive with Thunderbolt 2. I assumed that TB2 was backwards compatible so daisy chaining the Lacie to the Pegasus wouldn't be an issue. But when I do so, the Lacie doesn't mount and Disk Utility cannot see it.
    However, if I connect the Lacie directly to the Mini it mounts and works fine. So then I tried connecting the Pegasus to the Lacie. But now the Pegasus doesn't mount and can't be seen by Disk Utility or Promise Utility.
    So, is the problem trying to daisy chain TB1 and TB2 devices together? Or is it the Mini? Or is it Lion?
    Any help will be appreciated.

    Thanks for the quick reply. The Pegasus is over 3 years old and I have never updated the firmware. I will do so.
    However, I got everything to work. The one I thing I didn't try was rebooting with both drives daisy chained and turned on. This did it. I restarted many times but each time was with only one of the drives connected. Not sure why a reboot is necessary for the daisy chained device to be visible.

  • Audio and MIDI Driver Conflict

    Hi,
    I am brand-new with Logic. (Just bought it yesterday!)
    I was able to use it with a MOTU 828 and an M-Audio Ozone for Audio and MIDI, respectively. I've also just moved from Pro-Tools to Logic, so I also have a Digi 002 and I'd like to able to use the 002 if possible as well. So...
    Now Logic shows this dialog, and does not let me go on to use the program:
    “Logic Pro has detected a possible conflict between one or more third party MIDI or Audio drivers.
    Be sure to install the latest drivers for all audio and MIDI equipment connected to your computer, and remove any older or unused drivers.”
    I have tossed the older drivers (from my previous system, as I just updated to Tiger)
    and I still get the dialog.
    Should I start from scratch? If so, how??
    I need help! Any suggestions?
    Thanks!
    Beto Hale
    Dual G5 2.5 GHZ   Mac OS X (10.4.6)  

    Hi,
    I am brand-new with Logic. (Just bought it
    yesterday!)
    I was able to use it with a MOTU 828 and an M-Audio
    Ozone for Audio and MIDI, respectively. I've also
    just moved from Pro-Tools to Logic, so I also have a
    Digi 002 and I'd like to able to use the 002 if
    possible as well. So...
    Now Logic shows this dialog, and does not let me go
    on to use the program:
    “Logic Pro has detected a possible conflict between
    one or more third party MIDI or Audio drivers.
    Be sure to install the latest drivers for all audio
    and MIDI equipment connected to your computer, and
    remove any older or unused drivers.”
    I have tossed the older drivers (from my previous
    system, as I just updated to Tiger)
    and I still get the dialog.
    Should I start from scratch? If so, how??
    I need help! Any suggestions?
    You are about to enter a world where time and space
    have no dimensions.A world called the Digi Zone.
    This could be a little messy, so I will try and walk
    you through it. First off let me get this straight, you
    said you moved from Pro Tools to Logic? You know
    once you leave the Matrix, you cant go back. OK,
    so now your going to find out how deep the
    rabbit hole goes.
    First, you must go here......
    http://www.digidesign.com/download/coreaudio/tiger/
    This will get you to the page where you can download
    the STAND ALONE core audio driver for TIGER. This is
    the driver that you must use once you decide you are not going
    to use Pro Tools exclusively.
    Second, There is a FAQ there, read it. There are a couple
    of things you will need to know. The major issues are
    you will need to change the I/O buffer size the first time
    you use Logic or else you will eventually have a crash.
    Default is 512, change it to1024 for a little while then
    you can change it back to whatever you want.
    check the FAQ. Also, you wont here your system sounds
    through the driver. They will still come through the internal
    speakers.
    This should get you up an running.
    One last thing, Dont upgrade Tiger, unless you want
    trouble. If you want to upgrade Tiger (10.5), wait until
    Digi offers a new stand alone driver. Other wise you
    will have to Downgrade back to Tiger to
    get Logic to work. I have had to deal with this first
    hand so, take my word on this.
    Let me know if you have any questions, Phil
    Duel Processor 1.8 G5, Duel Raptors drives, 2GB Ram   Mac OS X (10.4.5)   LP7.2,Reason 2.5,Digitech, TCHelicon and BBE Sound Processors, JBL 4311 Monitors

  • HT5219 Thunderbolt ports and displays

    I bought a TB screen and i am connecting it to My Macbook Pro 13'' & it's working perfectly, but i tried to connect my TV screen from the second TB port available in the TB screen through MiniDisplay-HDMI adaptor and isn't working, any clue?

    I don't have a Thunderbolt machine but according to this article, Windows doesn't support Thunderbolt at all. That means Apple had to add Thunderbolt support in order for it to work even as it does. How would a Dell have solved your problem?
    http://www.zdnet.com/more-thunderbolt-on-windows-compatibility-lessons-for-mac-o wners-7000021314/

  • How To add a second eSata drive once first drive capacity is reached

    What upgrade options are available once an eSata drive recording capacity is reached?
    Once an eSata drive connected to CHS 435HDC DVR reaches recording capacity, is there a way for a second external eSata drives to be connected and used as external storage devices without loss of all data on the first eSata drive?
    Currently once a second drive is connected and activated on the DVR, all playback access to ALL the data stored on the first eSata drive is lost and cannot be played back once the second drive is ejected from the DVR and the first reinstalled..
    Once the first drive is reinstalled the Check Capacity option for the first drive which once showed the drive as full and at maximum capacity before it was ejected and uninstalled, now shows 0% full, and 0 hours usage hours and the drive space 100% available.
    These reading are without having reformatted the drive and only selecting the "accept" option once the DVR detected the drive being reinstalled. 
    The Recording option still will show recorded program listing, but once a recording is selected for playback, no recorded program data appears on the screen nor none of the normal indicators displayed on screen during normal playback does not appear.
    This means there is no upgrade path or option available once recording capacity is reached for an eSata extended storage drive, other than losing all 350 hours of recorded program data or deletion of files to free up capacity.
    Also there is no warning that once a drive is disconnected from the DVD and another drive is activated all data recorded on the first drive is lost and cannot be played back! The data must be there nut not recognizable by the DVD program even though the data was created on the same DVR and eSata drive.
    How can I safely connect a second eSata drive to the DVD and not lose all the recorded data on the first eSata drive?
    Thanking you in advance for your help.

    phoneb1ll wrote:
    How can I safely connect a second eSata drive to the DVD and not lose all the recorded data on the first eSata drive?
    Thanking you in advance for your help.
    Based on the description of your own observations, you can't.  Does some one else know otherwise? 

  • External hard drive and ESata connection on K9A2 Platinum (inop)

    I have the same problem as the user who posted on this topic in Oct last year.  I have two eSATA external drives, one a Lacie, the other a GForce.  Both are 1TB and, luckily, have USB, FW and eSATA ports.  When I got my PC it was running XP Pro 32.  In that OS the GForce works fine USB or FW but is not recognized at all when plugged into either of the eSATA ports.  I tried different cables.  I then upgraded to W7 Ultimate 64.  Same results.  I also purchased the Lacie drive.  It works fine USB or FW, but is not recognized eSATA.  The only difference with the LAcie drive is that my PC did try to load a PCI device driver.
    Reading the old topic I went to Fastbuild but could not see the drive attached via the eSATA port to add.  No additional drives were recognized.  I am not the experienced with setting up RAID, FYI.
    I am reluctant to falsh the bios with an MSI update as everything is working otherwise.  I do have the XP and Vista CDs with the MSI drivers on them that the builder (Powermax) gave me.
    I really would like to get these drives running eSATA.  Any suggestions on how to proceed?
    Thanks in advance.
    Specs:
    Operating System
       MS Windows 7 Ultimate 64-bit
    CPU
       AMD Phenom X4 9550    28 °C
       Agena 65nm Technology
    RAM
       8.0GB Dual-Channel DDR2 @ 333MHz  5-5-5-13
    Motherboard
       MICRO-STAR INTERNATIONAL CO.,LTD MS-7376 (CPU 1)
    Graphics
       Generic PnP Monitor on ATI Radeon HD 3870
       ATI Radeon HD 3870 (VISIONTEK)   47 °C
       ATI Radeon HD 3870 (VISIONTEK)   47 °C
    Hard Drives
        1000GB MICRONET FANTOM DRIVE IEEE 1394 SBP2 Device (1394)
        749GB ATI 1X2 Mirror/RAID1 SCSI Disk Device (SCSI)
    Optical Drives
       ATAPI DVD A  DH20A4P ATA Device
    Audio
       High Definition Audio Device

    This post is my attempt to add some clarity on the issue of making the eSATA ports on your K9A2 board usable.  My conclusion is based on a lot of trial and error and reading a lot of old posts on this board on the subject.  I have purposely made a new post so that it is searchable and will hopefully save someone else a lot of time and grief.
    If you are like me you will be frustrated because the eSATA ports on your machine appear inoperable and do not recognize an external drive although the drives work fine connected with a USB or FW cable.  This is because the eSATA ports on the K9A2 are controlled by a Promise T3 on board RAID controller (it may be pseudo RAID but that's for another discussion-- all we need to know is it controls those ports).  It also controls the internal SATA ports 5 and 6, FWIW.
    You will probably find that the Promise is disabled in Setup. <DEL> at POST to see setup on the K9A2.  You are looking in the Integrated Peripherals menu choice, submenu Extra RAID Controller (for Promise RAID).  When you enter here you will see if your Promise is enabled or disabled.  If it is enabled you have another problem.  Likely it is disabled, BUT DO NOT ENABLE IT AT THIS TIME.
    Go back to the Integrated Peripherals Setup menu.  Then go to the On-Chip ATA Devices submenu and then the SATA Mode (for SB600 RAID) menu under that.  If the enabled selection is either AHCI or IDE, you can leave it be and go back and enable the Promise controller making sure that you have first loaded the drivers which can be found here: http://www.msi.com/index.php?func=downloaddetail&type=driver&maincat_no=1&prod_no=1332
    Please note I do not know if the Vista drivers for the Promise will work with W7.  Likely, but I never got to find out.  It's probably a good idea to load a set of SB600 drivers to a floppy right about now in case you need to restore them later too.
    If however, you find that your you SB600 is set to RAID (not IDE or AHCI) then unless you are prepared to give up your RAID array, you are done now and can never use your eSATA ports or the Promise controller.  This is because -- as I have read in older posts -- the Promise controller loads its own BIOS, and if the SB600 controller is also set to RAID there will be a conflict.  (My SB600 is set to RAID, the end result of enabling the Promise -- before I knew all this -- was the destruction of my RAID drivers and a never ending boot/BSOD loop).  If you are like me, you may receive answers answers on this forum  like:" AHCI has to enabled for the eSATA ports to work".  A more accurate and helpful statement would be that if your SB600 controller is set to RAID you cannot use the Promise controller.  If you want to use the Promise controller your *SB600* controller should be set to AHCI (if you have an existing RAID set, wave it goodbye).
    Summary: If you want to use your eSATA ports and are not using RAID, set SB600 to AHCI, load Promise drivers and enable Promise is setup.  If you are using a RAID set driven by the SB600 give up now and go buy a PCI card with a couple of eSATA ports on it and hope you can install it around your video cards (not a lot of room on the K9A2 with modern video cards).
    I would be ecstatic for someone to tell me I'm wrong, but I don't think they will.  I have no idea why someone thought it was a good idea to design the board this way, but it is what it is, eh?
    I hope this post saved you some time.
    R/Anthony
    PS: Stating the obvious: have a recent system image, startup disk and a full set of drivers before you screw around in Setup if you are of limited experience like me.

  • Trouble with eSata Drives and Cards

    I'm totally at my wits' end on this one. Hope someone has some useful suggestions.
    I had an esata card from OWC that came with an external Mercury Elite Pro enclosure. I installed it in 10.4.8 or so. Upgraded to 10.5.1 and then 5.2. Started losing my raid (kept degrading). I separated the drives. They continued to work as indpendents. Then they started disappearing from the desktop. I would reboot and they'd reappear. Disk utility reported no errors on either drive.
    Then they just completely disappeared.
    I went out and bought an eagle esata/usb enclosure to test my drives. Both pulled drives from the OWC case mounted perfectly through the USB bus but neither would mount through the esata bus on the new eagle enclosure. So at this point it has to be the card or the wires right? Swapped out wires and still no joy. Wrote to OWC who didn't write back and bought a new card from another vendor (Norco). Installed it installed drivers. Shows up in PCI cards as a RAID controller.
    Still, no esata drives will mount through it. Not even seen by disk utility. The eagle drive light indicating hard drive activity briefly illuminates during startup, but that's the extent of it.
    I reset NVRAM. I ran disk utilities on my startup disk. Repaired permissions. Reset PMU.
    I've attempted to install 10.5.2 combo update over my system and I get the error
    "You cannot install Mac OS X Update Combined on this volume. This volume does not meet the requirements for this update."
    Usually this means my system is updated beyond what I'm trying to update with... but this update was downloaded from apple.com yesterday... even tried it after safe booting to see if it was an extension conflict.
    Anyone have any other places to go for help or thoughts on what to try next?
    Thanks!

    Sorry about that, okay the box was torn and there was no software. After a month of problems, spinning beachball etc. I contacted Norco and with the help of an interpreter, very difficult to understand tech support, I found out there was drivers involved. Downloaded the drivers and the card still would not work. Nor would the drives mount ( 2 WD my book studios 500g each.) I have returned the card and am currently running the drives through the 800 fw connection. I brought the drives, 6 gigs of ram and the card all at once, put everything togathr and thought I would be in editing heaven. I quickly fell into tech support ****...Everyone blames everyone else, oh well. I am looking ror a PCI-X controller card that works. I feel the Seritek could be the one. It is not my choice because it does not support ESATA 11. Can you help me?

  • Thunderbolt partitioned and formatted hard drive not recognized on USB2/3

    I have a MBA (mid 2012) and recently purchased a Seagate Desktop Thunderbolt Adapter (STAE129), a Seagate Backup Plus 4TB USB 3.0 external drive (STCA4000100), and Apple Thunderbolt cable. The 4TB hard drive can be separated from the USB 3.0 adapter and the drive placed on the Thunderbolt adapter. I created two partitions (3TB and 1 TB) on the 4TB drive while it was mounted on the Thunderbolt adapter and formatted them Mac OS Extended (Journaled) using partition map scheme GPT. Everything works as expected, the drive hits r/w speeds in the 180 MB/s range (using Blackmagic Disk Speed Test), and no issues at all transferring data to the 3TB partition and using the 1TB partition for TimeMachine.
    However, if I disconnect the hard drive from the Thunderbolt adapter and place it on the USB 3.0 adapter and connect it to my MBA, Mountain Lion says "The disk you inserted was not readable by this computer and gives me the options to Initialize, Ignore, or Eject. Going into Disk Utility app, the drive shows up without the partitions I created when the same drive was mounted to the Thunderbolt adapter (just shows disk1s1). In fact, the drive label (Disk Description) is different too and the Partition Map Scheme now shows MBR!
    To try work-arounds, I went ahead and repeated the partitioning and formatting steps with the drive attached via USB 3.0 and all works fine until I put the drive back on the Thunderbolt adapter where once again OSX reports that the disk is not readable. I've even tried a single partition with no luck. In short, the drive partitioned and formatted on Thunderbolt is unrecognized under USB and vice versa.
    Shouldn't the disk preparation and data be consistent across these different interfaces? I would think so. My biggest concern is that if I had a failure in the Thunderbolt setup (assuming the drive itself does not fail), then I can't access my data. This is not a very comfortable situation.
    I'm assuming I've overlooked a very basic detail. Appreciate any steer to solve this problem.
    Thanks,
    Rob

    Thanks for that, I recently ran into the same problem. I even chatted with Seagate tech support and they didn't know the answer.
    My situation is a bit different from you. I bought the 3 TB Thunderbolt version of the drive directly and then purchased a USB 3 adaptor seperately.  You see, I still own a 3 year old Macbook Pro that doesn't come with a Thunderbolt port. I was looking to upgade to a MacBook Air later.  I thought that I might as well buy the TB version now.
    In anycase, my old MacBook Pro won't see the drive when I use the USB3 adaptor. I get the same exact error message as you did. I can't really test it on Thunderbolt since I don't have one.  I'm going to go install the Thunderbolt drivers now and hopefully, it will recognize the drive afterwards.  I'll let you know what happens.
    BTW, I was thinking of reformatting the drive with NTFS so that I can use the drive on PCs. My mac has the NTFS drivers loaded so it's no problem. I hope this won't screw up the Thunderbolt connection later when I do get the Macbook Air?

  • I am running my first backup on Time Machine using a Seagate external hard drive with a thunderbolt adapter and cable.  I have a MacBook Pro 2011. It is backing up 11GB, and is telling me it will take approx two days. Is this normal?

    I am running my first backup on Time Machine using a Seagate external hard drive with a thunderbolt adapter and cable.  I have a MacBook Pro 2011. It is backing up 11GB, and is telling me it will take approx two days. Is this normal?

    Download the supplemental fix to 10.7.5 
    http://support.apple.com/kb/DL1599

  • Thunderbolt display and drive unmounts

    I have a Thunderbolt display and a new late 2013 MBPr 15 running 10.9. Since upgrading from an earlier MBPr my thunderbolt display connected thunderbolt drives (2 G-Techonolgies) intermittingly unmount and are unreachable by Disk Utility and a restart is required to remount the drive(s). Anyone experiencing this issue. G-Technonogies suggest putting the display at the end of the TB chain, not quite sure how to do this with the all-in-one connector. I have tried connecting the drives directly to the MBPr on one TB Interface and the Display on the other thru the all-in-one cable of the display, the issue still exists.

    I've a Spyder4Elite that I use on both my Thunderbolt Display and on my MBP - and, while both are calibrated, they don't - and cannot - 'match' one another, no matter how hard I try.
    I suspect that you're running up against the same wall? Different technologies in different displays. I doubt that you'll ever get a perfect match: mine are just 'good enough'.
    Clinton

  • ISight conflict when installing Google Voice and Video driver

    After installing Google Voice and Video driver, the iSight stops working on Flash based applications or websites.
    Two camera drivers are installed: Google camera 0 and Google camera 1.
    Even if I go to Settings and choose the correct driver (iSight Integrated), it does't works.
    The only way I found to solve this issue is removing those Google's drivers (Library/Application Support/Google/GoogleVoiceAndVideoUnistaller).
    However, this is not a solution since I can't use GTalk anymore.
    Does Flash Player 10.2 fixes this conflict?
    Regards,
    Flávio Mikami

    Sorry for not using the search, I see it's available in AUR... http://aur.archlinux.org/packages.php?ID=36308
    Now trying to install from there!

  • Multiple external drive problems, both USB and Esata

    Everything worked well in Tiger on my first gen MBP. Since i switched to Leopard and now Snow, and a new UNI MBP in december 08 I have so many external drive issues.
    USB drives just disappear and power off (from the system not electrical) for no reason, mostly when connected to USB hubs. I've tried various hubs including the powered ones. But as soon as i go over two USB devices in the provided ports my problems start.. It feels like not enough juice is getting through those ports on my MBP. I never have a problem if i just connect 2 devices into the MBP, but it's not enough (i have 5x1tb external drives).
    Also the same with the express34 slot.. Everything was fine under Tiger and my old MBP, But now i get the grey wall of death so many times when connecting 2x esata 1TB drives. The system is so unstable with multiple drives both USB and. I'm currently working as a pro Photographer on assignment in Asia and these stability are starting to become a big problem.
    God forbid i'm even considering a switch back to windows for reliability, (yes, i did use the words windows and reliability in the same sentence)
    Does anybody else experience problems with multiple drives through leopard/snow leopard via Apple notebooks? I would love to hear some users experiences and hopefully find a solution to my problem.. In every other way the system works like a charm.
    I will post in 2 forums because i'm not sure if software or hardware related.
    Thanks, any help is appreciated.

    @ Gregory
    All my drives are 3.5" HD's all with external power cables along with a mains powered USB hub. Sorry, i didn't state that clearly in the original post (i thought the hint of all drives being 1TB was a dead giveaway:)).. However, this still doesn't explain the same behaviour of the 2x1TB esata drives which actually work well if no external USB drives are connected. Sorry i'm not technical but does the expresscard slot share any bridge,bus or power connectivity with the USB slots??
    I'll try this SMC reset that S.U mentioned...
    Thanks for everyones help and ideas so far.

  • Xfce4 and thunar mounting esata drive

    Just got a new esata drive and am finding that I have to create the custom udev rule described below in order for me to have the ability to mount partitions through thunar.  I am fine being challenged to type my root password when I go to mount partitions but I can't even get challenged with the root password.  I simple get a message telling me that I am not authorized to mount partitions on this drive without the rule.  My user is in the storage group.
    How can I exist without this rule and get challenged to mount via a password?
    https://wiki.archlinux.org/index.php/GVFS
    polkit.addRule(function(action, subject) {
    if (action.id.indexOf("org.freedesktop.udisks2.") == 0){
    return polkit.Result.YES;

    you can set the UDISKS_FILESYSTEM_SHARED property on the device (or all block devices) via a udev rule. udisks2 will then mount the device to /media/*, like udisks1 did (see "man udisks").

  • PCIe card for eSATA drives - and 10.6

    Help !!!!
    I have 15 1TB external hard drives - in three 5-bay DAT Optic enclosures. They are on my Mac Pro (2009) - and they house tens of thousands of photographs for clients.
    The external drives run from a PCIe card - using a Silicon Image driver ... SiI3124
    http://www.siliconimage.com/products/product.aspx?pid=27
    My copy of Snow Leopard will arrive on Monday .. and now I learn that SiI3124 is not supported under 10.6. That makes it unusable for me.
    Does anyone know of a PCIe card that can run eSATA drives under 10.6 ???
    I can't believe that 10.6 was released without a driver to support external hard drives - other than consumer USB boxes.
    Sometimes I fear that Apple is becoming a music store - and forgetting its role in supporting the graphics industry that helped found it. PCs run Photoshop faster than do Mac Pros with CS4 -- and now I can't even store my images with 10.6 !!!!!!!!
    What a huge disappointment !!!!!!!!!
    Dick
    http://www.wilderness-studio.com

    CIAVT wrote:
    Use the Sonnet tech cards, they have a 10.6 compatibility matrix in the support section of their site. Yes, I paid more for the card when I got it, but I haven't had any headaches with it at all. I guess you get what you pay for.
    This is good advice for both PCIe and Expresscard. I have discussed this with Sonnet and I think they regret the cheap/expensive strategy owing to the lack of support on SI drivers. They did lower the price on the Expresscard/34 Pro by 1/3 , or $100.
    I still have their E2P (PCIe Si 2 port based card) and an Expresscard/34 (non-Pro) available cheap for anyone who thinks Si drivers are a good value.
    The new 64 bit driver will be nice for the handful that run in a true 64 bit boot situation which won't be many and is not really necessary at all anyway. OF course if you have one 32 bit driver you need then that won't be a viable option.

Maybe you are looking for