Mobius™ 5-Bay FireWire 800, eSATA, USB 3.0 RAID Hard Drive Enclosure BIG PROBLEM

Discussion in 'Mac Pro' started by Zwhaler, Nov 5, 2014.

  1. Zwhaler macrumors 603

    Zwhaler

    Joined:
    Jun 10, 2006
    #1
    Hi. I purchased the Mobius™ 5-Bay FireWire 800, eSATA, USB 3.0 RAID Hard Drive Enclosure off of Amazon last year. However because of a persistent problem it is basically unusable for my purposes (interfacing to FCP X). The dang thing auto ejects after being idle for a little while. Is there a setting to stop this from happening? If I'm in a FCP X session, and I'm doing some editing, and I leave and come back after a little while the unit has auto ejected itself, my media won't play back, and I have difficulty getting it to connect again... because it is "On" but has ejected itself. If I turn it off and back on it usually doesn't mount. I have to restart, and try some combination of turning it on after restarting or restarting after it has been turned back on for it to mount and then the process repeats again. Any ideas or help? Now I use it to store hard drives that aren't being used and rarely turn it on.
     
  2. flowrider macrumors 601

    flowrider

    Joined:
    Nov 23, 2012
    #2
    Auto Eject issues have been discussed here, mainly in connection with USB 3.0 Drives. I had the issue with a MicroNet Fantom Drive. I returned the drive and replaced it with a Hornettek USB 3.0 enclosure and a fast Seagate HDD, and have not had the problem since. So my assumption is, it's a problem associated with the electronics of the external device. I also have this issue on my MBA with an Orico USB 3.0 enclosure. In addition I have an old MicroNet Firewire 400 HDD hooked up to the Firewaire 800 port on my 5,1 Mac Pro. This drive does not unmount itself.

    Lou
     
  3. Zwhaler thread starter macrumors 603

    Zwhaler

    Joined:
    Jun 10, 2006
    #3
    Yeah it's hooked up to a HighPoint 1144CM USB 3.0 PCIe card on my Mac Pro. Unfortunately that card also prevents my computer from entering sleep mode, and they released a new one fixing it... but I don't want to buy it because I'm stubborn Lol. Thanks for the input.
     
  4. flowrider macrumors 601

    flowrider

    Joined:
    Nov 23, 2012
    #4
    ^^^^My USB 3.0 Card is HighPoint RocketU 1144C.

    Lou
     
  5. VirtualRain macrumors 603

    VirtualRain

    Joined:
    Aug 1, 2008
    Location:
    Vancouver, BC
    #5
    I had this product for a few weeks and had the same problem on USB3 (connected to the native USB3 ports on my nMP). However, it was more reliable connected to my Mini with FW800... So I'd try that if I was in your situation. In my case, I returned it in favor of a Thunderbay IV... A bit more expensive, but much faster, more reliable, and a lot quieter (but requires Thunderbolt).
     
  6. nigelbb macrumors 6502a

    Joined:
    Dec 22, 2012
    #6
    I had this kind of problem with my old USB 3.0 cards. However I just bought an Inateck KT4004 from Amazon for £27.99 (about $45). This 4-port USB 3.0 card needs no supplementary power & gives excellent performance from my external drives. A nice bonus compared to the previous card that I was using that did require extra power is that the cheap USB 3.0 7 port hub that would not work with the old card now works fine. The Inateck KT400 also allows the Mac Pro to sleep.
     
  7. flowrider macrumors 601

    flowrider

    Joined:
    Nov 23, 2012
    #7
    ^^^^Before my RocketU Card I also had an Inateck KT4004 and had the eject issue, just as I did with my with my current RocketU. As I indicated the fix was to dump the MicroNet Fantom and replace it with the Hornettek enclosure. That is how I came to the conclusion that the issue is with the electronics inside the external device and not with the USB 3.0 Card or the OS.

    BTW, the Fantom also had trouble remembering it was a USB 3.0 SuperSpeed Device. Sometimes, in "System Information" it would show as a Hi-Speed (USB 2.0) and other times as a SuperSpeed Device.

    Lou
     

Share This Page