OS X Server Locks Every Morning

Discussion in 'Mac OS X Server, Xserve, and Networking' started by dieseltwitch, May 22, 2015.

  1. dieseltwitch macrumors regular

    Jan 24, 2008
    12' Mac Mini 2.5GHz i5 4GB Ram 500GB HD with 2TB Ex On RAID for Backup, OS 10.10.3
    Running 2 Parallel OS X 10.10.3 Servers each with 1GB of RAM.
    All Software is up to date
    The Installs are very minimal. No extra's just the server.

    Every Morning when I come in to the office both my servers are off line. When I attach a screen They are running and just take a minute to then show up in a server client on my MBP. What the heck is going on? How do I keep the server Live?
  2. kweevuss macrumors member

    Oct 28, 2012
    With this mac mini only having 4GB and the VM's taking up 2GB that doesn't leave the host os very much room. I would check activity monitor to see what the memory pressure is like
  3. dieseltwitch thread starter macrumors regular

    Jan 24, 2008
    with both machines running and stable memory load is sitting between 60-70%

    Native Parallels is 150 MB
    Servers are 550-650 MB Each.

    The servers run great all day long. Granted Im not loading them much at al. Cal, Reminders, Contacts, A Wiki and a webpage redirect....They are basically there so that the guys in the field have uptodate cal's with job details and contacts for new clients.
  4. chrfr macrumors 604

    Jul 11, 2009
    You need more RAM to run all this even if it appears to be "working." If you've allocated each VM to use 1GB, the RAM usage stats you're seeing simply are incorrect. OSX can't run reliably in 1GB, so each VM needs more RAM. The host needs more RAM as well. It won't be able to cache and will swap heavily at times.
    Edit: also keep in mind that Time Machine is memory and disk intensive and also cannot reliably back up virtual machine containers if the VMs are live.
  5. marzer macrumors 65816


    Nov 14, 2009
    From what you describe, I don't think the issue is memory. If they run fine all day long then obviously you have sufficient memory. This sounds like a energy saver/wake issue. I have dealt with wake-up problems on and off with my 2012 headless mini. Could be something is interfering with the wake on LAN. In my case it turned out to be a third party utility I was running in the background.

    What are your sleep settings? Do you have "wake on network" enabled?
  6. dieseltwitch thread starter macrumors regular

    Jan 24, 2008

    I have it set to never sleep. but I also have the wake on lan set on all 3 systems (Host and 2 PL)
  7. ratsg macrumors 6502

    Dec 6, 2010
    any "smoking guns" in the system logs from around the time your system freezes?
  8. dieseltwitch thread starter macrumors regular

    Jan 24, 2008
    Havnet checked. will check tomorrow. thanks for the idea. Not acustom to looking at log files.
  9. btdpi007 macrumors member

    Jun 9, 2009
    North Carolina
    Take this for whatever it's worth, but you state you attach a monitor every morning which I presume means you run the servers "headless". I recall have all types of issues running my Mac mini server "headless" and attached a monitor for several days and the problems went away. You may want to see if the "headless" part is attributing to your issues. A possible workaround if you determine this is your cause is to keep a monitor attached or build a dummy dongle.
  10. dieseltwitch thread starter macrumors regular

    Jan 24, 2008
    I do Infact run it headless. I have thought about putting a cheap 1080 wall mounted screen and having it display photos or reference charts for me. :) shame it can't drive a 4k! :)


    Attached Files:

  11. dieseltwitch thread starter macrumors regular

    Jan 24, 2008
    So it did it again this morning. I work up, fired up the Cal app and "...can not be refreshed".... So I start server. type in my domain and a few seconds later Im looking at the server no problem. Every thing appears to be normal. Looking through the logs doesn't show many any glaring sign of anything that went wrong. Every hour there is a log entry of listening on HTTP and HTTPs ports (cal and contacts ports) there is only one entry at 4:46 am that shows any type of error

    May 23 04:46:33 mycompany.com BezelServices 250.15[99]: ASSERTION FAILED: dvcAddrRef != ((void *)0) -[DriverServices getDeviceAddress:] line: 2727

    No idea what it means

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