Can I leave my eMac on for a long time?

Discussion in 'Macintosh Computers' started by johnbro23, May 28, 2004.

  1. macrumors 6502a

    Joined:
    Apr 12, 2004
    Location:
    Pittsburgh, PA
    #1
    I have a BitTorrent I'm downloading thats pretty big and going pretty slow. Do you think it'll be bad for my computer to leave it on (for days probably) while it downloads? Is there some way to let my eMac sleep while it continues to download?
     
  2. macrumors 6502

    SuperChuck

    Joined:
    Nov 15, 2003
    Location:
    Chucktown, SC
    #2
    The iMac I'm writing this to you with has been on for three years straight. So...yes, it's perfectly fine to leave it on for a few days.

    I asked the same question to an Applecare tech a few weeks after my iMac Special Edition DV arrived. His answer was "do you turn your refrigerator off?"

    For many applications, computers must be on constantly, and they are designed to handle it just fine.
     
  3. macrumors 601

    zimv20

    Joined:
    Jul 18, 2002
    Location:
    chicago
    #3
    really? your uptime is > 1000 days?

    to original poster: no worries. leave it on. in fact, osx runs cleanup utilities on a daily, weekly and monthly basis, timed for sometime at night. so in that regard, it's better to leave it on. and you can fold!
     
  4. thread starter macrumors 6502a

    Joined:
    Apr 12, 2004
    Location:
    Pittsburgh, PA
    #4
    Wow, that is so cool. I never thought your computer was like a refrigerator. Thats like shocking to me. I'll take your word for it though.
     
  5. macrumors 6502a

    Joined:
    May 17, 2004
    Location:
    NYC
    #5
    What operating system do you use? Have you upgraded operating systens since three years ago? My computer (my Pismo) requires a restart after I install some programs, software updates, and operating systems.
     
  6. macrumors regular

    Joined:
    Apr 27, 2004
    Location:
    Tokyo
    #6
    he's (SuperChuck) just trying to make a point. don't get all fussy 'wide'.
     
  7. Moderator

    Nermal

    Staff Member

    Joined:
    Dec 7, 2002
    Location:
    Whakatane, New Zealand
    #7
    I think rebooting is still considered as "leaving it on". :)
     
  8. macrumors 601

    zimv20

    Joined:
    Jul 18, 2002
    Location:
    chicago
    #8
    my mileage varied. to me, leaving it on is determined by uptime.

    for example, from the machine that until recently was my webserver:
    9:59PM up 157 days, 1:08, 2 users, load averages: 1.40, 1.36, 1.33
     
  9. macrumors 6502a

    Joined:
    Feb 14, 2004
    Location:
    South Jersey
    #9
    LOL... You guys are rough- tough crowd...lol.. In all seriousness though, I once had an uptime of 73 days... Not really sure why that's relevant to this topic, but hey, it is a feather in my Mac using cap...

    To answer the original question, no worries — leave your mac on- no need to shut down except for upgrades when prompted to...
     
  10. macrumors 601

    zimv20

    Joined:
    Jul 18, 2002
    Location:
    chicago
    #10
    but there are production machines which _do_ stay up for years. e.g. sun microsystems makes machines which can keep running through CPU swaps, RAM swaps, power supply swaps, etc...

    and i think OS updates and kernel mods, but i might be wrong there.

    so i was going to be seriously impressed if a home user had a machine up for 3 years.
     
  11. macrumors 68020

    neoelectronaut

    Joined:
    Dec 3, 2003
    Location:
    Southeastern Louisiana
    #11
    My eMac is on 24/7 I'm almost constantly ripping DVDs, downloading something on BitTorrent, Encoding video, and even folding. Anything that takes a long time to complete.

    I suggest just turning the energy saver settings for your display to 1 minute and have your screen shut off when you're not using it. It'll both save your screen from burn-ins and save you on energy.
     
  12. macrumors 6502

    Joined:
    Jan 7, 2003
    Location:
    Toekeeyoe, Japan
    #12
    More insightful than you might realize...i.e. the computer IS becoming an appliance.

    The longest uptime I've ever heard of was at work, a sun ss/20 had an uptime of over 1500 days... problem was, no-one knew what it did, or wanted to take the risk of rebooting it. Ha ha ha... :cool:

    It's better to reboot production machines periodically, just so you know you can do it, but I've kept Linux machines running for a year for sh*ts and giggles. A Mac running OS X should be able to easily match that if you didn't have to reboot after some simple patches. <sigh>

    -Wyrm
     
  13. macrumors 6502a

    titaniumducky

    Joined:
    Nov 22, 2003
    #13
    TURNING OFF AND ON YOUR COMPUTER REPEATEDLY IS BAD FOR IT!!! LEAVE IT ON ALL THE TIME!

    Computer parts are designed to function at a constant state. It's switching between states that causes wear. By states I mean being used, being in standby, and being completely off. As far as power, just put the computer to sleep.
     
  14. macrumors 6502a

    wowser

    Joined:
    Jan 25, 2004
    Location:
    Inglaterra, Europa
    #14
    Do these clean up facilities work whilst my eMac is sleeping (it likes a good lie in, too!) , or should i also run the Mac Janitor program to make sure they get done?
     
  15. macrumors 6502a

    spencecb

    Joined:
    Nov 20, 2003
    #15
    How does one find the Uptime?
     
  16. macrumors member

    Joined:
    Feb 29, 2004
    Location:
    St. Louis, MO
    #16
    open up terminal and type 'uptime' (without the quotes)
     
  17. macrumors 68020

    neoelectronaut

    Joined:
    Dec 3, 2003
    Location:
    Southeastern Louisiana
    #17
  18. macrumors 601

    zimv20

    Joined:
    Jul 18, 2002
    Location:
    chicago
    #18
    they do not. rather than run them manually (as i do on my laptop), why not turn off the sleeping and fold on it?
     
  19. macrumors 601

    zimv20

    Joined:
    Jul 18, 2002
    Location:
    chicago
    #19
    *that* is friggin' hilarious
     
  20. macrumors G4

    wrldwzrd89

    Joined:
    Jun 6, 2003
    Location:
    Solon, OH
    #20
    I do that on my iMac - I recommend setting Energy Saver as follows: computer sleeps - never, display sleeps - 3 minutes (or longer if you sit at the computer often without typing anything or moving the mouse for longer than 3 minutes), hard disk sleeps when possible - yes. It's up to you whether or not you use the screen saver - if you do use it, change the display sleep setting to something longer than your screen saver's activation time like Mac OS X suggests, unless you use the screensaver purely as a means of locking the computer, in which case it does not matter.
     
  21. macrumors 68020

    neoelectronaut

    Joined:
    Dec 3, 2003
    Location:
    Southeastern Louisiana
    #21
    Wait, wouldn't having the HD sleep stop stuff like video converting and BT?
     
  22. macrumors 6502a

    Joined:
    Aug 13, 2003
    Location:
    Thunder Bay, ON
    #22
    Just a few weeks ago I was running at nearly 100% CPU for over 5 days straight (doing video encoding), so no worries.
     
  23. macrumors G4

    wrldwzrd89

    Joined:
    Jun 6, 2003
    Location:
    Solon, OH
    #23
    Mac OS X is smart enough not to sleep the HD when something tries to read from or write to it - your video conversions/BT sessions would still run without problems.
     
  24. macrumors 6502a

    titaniumducky

    Joined:
    Nov 22, 2003
    #24
    There's nothing wrong with the computer going to sleep. It saves lots of power.

    Bittorrent, DVD Ripping, etc. will stop it from going to sleep until the task is done; therefore, that's not a reason.

    The only other reason I can think of is the periodic scripts, and there's a solution to that too. Do a google search for "XJanitor.pl" - it's a perl script which checks the logs to see the last time each periodic script was run. If it's been over a day for the daily, a week for the weekly, or a month for the monthly, then it will run the necessary ones. Just add it to crontab to have it run automatically. I have it run at 15 and 45 past the hour (since my computer is a laptop and is frequently asleep). I've checked the logs and it works excellently!

    edit: Hah! I have a computer that I only put to sleep manually (eMac) because it acts as a print server (and occasionally a file server). I forgot to include that reason, which is very valid.
     
  25. macrumors 68020

    flyfish29

    Joined:
    Feb 4, 2003
    Location:
    New HAMpshire
    #25
    Actually, it is much better for your computer to stay on most of the time. The most wear and tear placed on electronics is the intensive hard drive operations- ie. start up....similar to that of a car. Cars take the most abuse during start up. Idiling is the next hardest...minus high revving or something like that which would obviously be worse.
     

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