nMP Locks up after System Sleep with 3+ daisy chained Promise2 R4 Enclosures

Discussion in 'Mac Accessories' started by ShortArc, Mar 29, 2014.

  1. ShortArc, Mar 29, 2014
    Last edited: Mar 29, 2014

    ShortArc macrumors member

    Joined:
    Jan 27, 2009
    #1
    My nMP(6,1) will not recover from system sleep when three or more Pegasus Promise2 R4 enclosures are daisy chained to it.

    This will also happen without drives installed.

    I also tested it with a second nMP at my locate Apple Store replicating the same system lockup.

    There are no issues when this configuration is connected to a rMBP Thunderbolt 1 port.

    I have been communicating with Apple Engineering (via Tech support) on this issue for over a month and the cause would appear to be the Promise Pegasus2 enclosures. Promise has not given any feedback to date.

    I would strongly recommend you stay away from these enclosures if you plan on daisy chaining more than two enclosures on the same port with system sleep enabled.
     
  2. k-hawinkler macrumors member

    k-hawinkler

    Joined:
    Sep 14, 2011
    #2

    Well, I disabled the system or drives going to sleep to avoid crashing when trying to wake up. However, I have only older FirmTek eSATA enclosures hooked up via eSATA to Thunderbolt adapters/converters.

    So, to me this seems to be an nMP problem, not just a Pegasus Promise2 R4 problem.
     
  3. ShortArc, Mar 29, 2014
    Last edited: Mar 29, 2014

    ShortArc thread starter macrumors member

    Joined:
    Jan 27, 2009
    #3
    I should also mention that I added a LaCie 1TB SSD TB2 as the third device (along with the P2R4s) and the system had no issues waking from sleep. Maybe not just a problem with P2R4 but I would say most likely.
     
  4. ShortArc thread starter macrumors member

    Joined:
    Jan 27, 2009
    #4
    Powering on the Promise2 enclosures while the MP(6,1) is booting freezes my system. Powering on the Promise2 connected on separate ports simultaneously while the MP(6,2) is running causes a kernel panic. (FW Version 3.18.0000.36). Power issue?
     
  5. flynz4 macrumors 68040

    Joined:
    Aug 9, 2009
    Location:
    Portland, OR
    #5
    I would be suspect of the power. Are they all plugged into the same circuit (i.e. does the same circuit breaker shut down all arrays and the nMP? I would try them on different circuits as a starter.

    Also... are you using UPS? If so... try the nMP on the UPS and the drives plugged directly into the wall.

    If that works... the I would suggest getting separate UPS units for the nMP and the Pegasus units.

    /Jim
     
  6. ShortArc thread starter macrumors member

    Joined:
    Jan 27, 2009
    #6
    Tested. Not a power outlet issue or UPS issue (APC Smartups 3000xl with two battery packs attached).
     
  7. ShortArc thread starter macrumors member

    Joined:
    Jan 27, 2009
    #7
    Either the latest FW update by Promise (3.18.0000.36) or OS X update 10.9.3 resolved the sleep issue. I will have to go back to see which did what.
     

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