MP sleep vs no sleep vs. nightly shutdown

Discussion in 'Mac Pro' started by MacMadness, Aug 1, 2013.

  1. MacMadness macrumors member

    Joined:
    Jun 19, 2013
    Location:
    Dallas TX
    #1
    I know there has been much discussion on this general subject,
    but I am looking for specific opinions for my recently upgraded 2009 4,1 MP 8-core 2.93ghz (from 8-core 2,26).

    It runs great except it goes into deep hibernation and won't wake up
    if i put it to sleep either from the apple menu or from the system preferences.
    (The problem started after the CPU's were upgraded)
    The fans were going crazy and apparently SMC got completely corrupted
    for some reason.

    It's already been to the Apple repair place and they reflashed
    the Boot ROM Version: MP41.0081.B8.

    Now it runs great but doesn't sleep properly.
    Getting tired of monkeying with it at this point.

    All the drives/ram & video card are new.
    Ran an 2 and 8 hour Diglloyd memory/CPU stress test
    and ran some pretty hairy photoshop tests with 15Gb files
    and it never broke a sweat, got hot or crashed.

    Specs:
    Previously mentioned processor upgrade
    New ATI 5870 card
    96GB 1066Mhz OWC ram
    Boot drive: 480GB 6G SSD
    PCIe: Two Accelesior 480GB SSD cards
    HD's: Three 4TB Black Caviar drives

    So here's the specific scenarios I'm looking for answers to...
    (And I don't care about electricity usage, just what's best for the machine)...

    I'm leaning toward leaving it on all the time and just putting the monitors
    to sleep. (perhaps a shutdown every couple weeks so it can reset)

    Or is shutting down nightly better?
    (Concerned about the stress on PS and and temp fluctuations on components from daily powering on/off.)

    What do you guys think?
     
  2. ActionableMango macrumors 604

    ActionableMango

    Joined:
    Sep 21, 2010
    #2
    The Mac Pro isn't fragile. It will be fine either way, so do whichever you prefer.
     
  3. pastrychef macrumors 601

    pastrychef

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    Sep 15, 2006
    Location:
    New York City, NY
    #3
    I only sleep the monitor on mine. The computer itself is on 24/7.
     
  4. tamvly macrumors 6502a

    tamvly

    Joined:
    Nov 11, 2007
    #4
    I like the idea that my MP goes to sleep when I do. Monitor, too. I only boot it after the weekly storage clones. Logic for this? I don't know there is any.
     
  5. Tesselator macrumors 601

    Tesselator

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    Jan 9, 2008
    Location:
    Japan
    #5
    +1

    Yup.
     
  6. MacMadness thread starter macrumors member

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    Jun 19, 2013
    Location:
    Dallas TX
    #6
    I appreciate the feedback. Since sleeping the machine is not an option...
    I'll probably just leave it on 24/7 most of the time and let the monitors sleep...:rolleyes:
     
  7. Tesselator macrumors 601

    Tesselator

    Joined:
    Jan 9, 2008
    Location:
    Japan
    #7
    That's currently what I do as well... but for no particular reason. I suppose the audio I sleep to and the possibility someone will want to access a shared mp3 or movie at night might be considerations tho. <shrug>
     
  8. mcfx macrumors member

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    Jul 14, 2013
    Location:
    US
    #8
    I think this is wasteful unless you need to run a server 24/7.
     
  9. DPUser macrumors 6502a

    Joined:
    Jan 17, 2012
    #9
    I shut down and re-start my hex MP daily. I like the energy savings and fresh start; it takes all of 20 seconds. Recording and mixing audio, my Mac never sleeps during work hours.
     
  10. RoastingPig macrumors 68000

    RoastingPig

    Joined:
    Jul 23, 2012
    Location:
    SoCal
    #10
    One of my mac pros 5.1 2.8 needs to be shut down nightly because once it sleeps it wakes every 5 minutes
     
  11. GGJstudios macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #11
    One thing to keep in mind is OS X has maintenance scripts that are scheduled to run in the wee hours of the morning. The scripts run daily, weekly and monthly. If your Mac is always shut down at night, the scripts never run. If your Mac is asleep at the time scheduled, the scripts will run your Mac is awake.
     
  12. maflynn Moderator

    maflynn

    Staff Member

    Joined:
    May 3, 2009
    Location:
    Boston
    #12
    If the computer if off or asleep during the time the maintenance scripts are scheduled to run, they then run at the next available time, i.e., when its turned back on. As for the majority of those scripts, I'd say the most have almost no effect on performance within OSX

    As for my computer - I usually leave it on. While not a MacPro, my rMBP is either on or in sleep mode when I'm not in front of the computer. The only time I shut it off, is for traveling, being a laptop ;)
     
  13. GGJstudios, Aug 3, 2013
    Last edited: Aug 3, 2013

    GGJstudios macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #13
    That is true for sleep mode, but not for being shut down. I have tested it numerous times and found they do not run when the Mac is started, only when awakened.

    From: Mac OS X: About background maintenance tasks
     
  14. Shrink macrumors G3

    Shrink

    Joined:
    Feb 26, 2011
    Location:
    New England, USA
    #14
    For those with an intense interest in knowing if, and when, the scripts have run...there is this widget that will tell you when the script last ran, and allow you to force run the scripts if for some reason one feels it is necessary. It's nothing more than a convenient way of monitoring script runs...and it's free.
     
  15. MacMadness thread starter macrumors member

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    Jun 19, 2013
    Location:
    Dallas TX
    #15
    From Apple:

    The tasks are scheduled for 03:15 to 05:30 in your computer's local time zone. This is described further in "Mac OS X: Unexplained Disk Activity Produced by 'find' Process." These tasks do not run if the computer is shut down or in sleep mode. If the tasks do not run, it is possible that certain log files (such as system.log) may become very large in Mac OS X v10.5 or earlier.

    Do you know if the cron jobs still run if the machine/HD's are awake and active but the monitor(s) are asleep?

    Thanks.
     
  16. GGJstudios macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #16
    Yes, they will run if the computer is on. The power state or even the presence of the monitors has no effect.
     
  17. MacMadness thread starter macrumors member

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    Dallas TX
    #17
    Thanks for the info. Much appreciated!
     
  18. handheldgames, Aug 3, 2013
    Last edited: Aug 3, 2013

    handheldgames macrumors 6502a

    handheldgames

    Joined:
    Apr 4, 2009
    #18
    Hold your breath until 10.8.5 hits and your trouble should go away. It's also is fixed / not present in the current version of 10.9. This problem was driving me crazy, I had to unplug/plug in a USB device for the wake up to occur. Power button, keyboard, mouse did nothing. MDP would sometimes fix the issue, but not 100% of the time.

    I run my mac for days/weeks at a time, putting it to sleep when finished as I couldn't live without the instant-on stability of OS X. Rebooting only to switch between 10.8 and 10.9 or when xcode occasionally hoses itself.


     
  19. Tesselator macrumors 601

    Tesselator

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    Jan 9, 2008
    Location:
    Japan
    #19
    Alternatively you could just run the scripts manually or use a utility like ONYX or Maintenance to kick them off for you whenever you wanted. See: http://www.titanium.free.fr
     
  20. SuperPolli macrumors regular

    Joined:
    Apr 20, 2013
    Location:
    New Jersey
    #20
    Shut It Down!

    I still use a 2006 Mac Pro and I shut it down every night. All of my computers get shut down every night. They won't be hurt by shutting down. They're built to be able to shut down and not get hurt. That might be the stupidest thing I've ever heard (that shutting it down could hurt). There comes a point where you need to use common sense, people!!!
     
  21. MacMadness, Aug 4, 2013
    Last edited: Aug 4, 2013

    MacMadness thread starter macrumors member

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    Location:
    Dallas TX
    #21
    Thanks.

    Been using Onyx for about a year on all my machines.
    Usually run it about every month or so.
    (or in this case to try to fix the sleep problem, which didn't work)

    How often do you run it?
     
  22. Korican100 macrumors 6502a

    Korican100

    Joined:
    Oct 9, 2012
    #22
    i agree (not as roughly as you put it though ;). Its just like saying, starting/shutting off your car hurts your ignition's longevity! Welp, you know that's what it was made for!
     
  23. Danboard macrumors member

    Joined:
    Jun 12, 2013
    Location:
    Airdrie, Alberta Canada
    #23
    Early 2008 MacPro. I used to put it to sleep the first few months that I've had it. Peripherals such as my Wacom Cintiq would have issues sometimes after waking it up, which required me to restart the machine. I ended up just shutting it down at the end of the day.

    I've been doing that ever since, turning the machine on every morning and shutting it off when I am done with my work (animation). It's still doing fine. Saves me a bit in electricity bills I suspect.
     
  24. Tesselator macrumors 601

    Tesselator

    Joined:
    Jan 9, 2008
    Location:
    Japan
    #24
    Uhhh... I donno. :D I have all three of those installed. I suppose about once a year I get a hair to tweak and maintain the system. So I'll defrag the storage (which does absolutely nothing in actuality) check some settings, flip a switch in ONYX - maybe something mundane like Show Emails In Text Format If Available or whatever, and maybe run those scripts or something. I ran it today in order to get the homepage URL for you. Prior to that I think I ran it for something about 5 months ago when I turned off the dynamic paging system in OS X. You might have seen me paste this into a few messages since:

    sudo launchctl unload -w /System/Library/LaunchDaemons/com.apple.dynamic_pager.plist

    followed by a reboot to turn off the dynamic paging and to turn it on again:

    sudo launchctl load -wF /System/Library/LaunchDaemons/com.apple.dynamic_pager.plist

    and so on. Mostly the kinds of mods ONYX does I like to use the shell for.
     
  25. MacMadness thread starter macrumors member

    Joined:
    Jun 19, 2013
    Location:
    Dallas TX
    #25
    Spoken just like Chris Christie. Thanks for weighing in, though.
    (inadvertent pun...apologies to Chris)

    Some Mac G5's and early Mac Pro's had potential problems with power supplies
    and electrical arcing across components during startups (I speak from experience
    as I had to have a couple of G5's repaired for faulty power issues back in the day
    when they were my workhorse machines).

    The highest stress on electrical components and hard drives is during power up.
    (Second only to thermal expansion/contraction to caps and other components)
    Over time these may become a ticking time bomb.

    (Or Russian Roulette may be more apt analogy).

    Some folks may get lucky and their machines last through thousands
    of power up/down cycles.

    ...I'm still leaning towards not taking a chance that one of those chambers
    has a bullet in it....
     

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