Difference between computer sleep display sleep mac
I have had two drives fail since. I always shut the entire system at least every night. The two drives were elderly with bearings tat were not of the mag elevated type. This stat is based on a population f 40 drives. Keep it or shut it own, life is. Too short to worry either way. I have it set to boot up automatically just before I get to the office every day. So, when I sit down all is running, mail retrieved, etc. My other question is, does anyone have any kind of info on how much power it takes to wake a Mac?
What is the threshold where it uses less power to just leave it for a while as opposed to sleeping it? Would you power users recommend leaving the AC connected while sleeping? I power it off. A bit paranoid, I know, but hey! I put it to sleep. My girlfriend shuts it down. To do this go to Terminal. Boot up is not as fast as sleep but faster than booting cold. I reboot about once a week to reclaim memory. I have some AppleScripts that run in the morning, shortly before I get up, so that things I want to see then are waiting for me.
How to Enable Lock Screen in MacOS via Keyboard Shortcut
I only reboot when it tells me it wants to reboot because of a software update. Otherwise I never reboot. With SSDs there is simply no downside to shutting down a Mac—at least at the end of each day. It takes about 15 seconds to boot my MacBook Air. I hate the idea of the computer writing 4GB to the SSD the way it does during the default sleep mode.
If your Mac has been attacked by a virus or trojan, and that code is attempting to take over but has not yet done so, shutting it down will halt those efforts. Please do more than only blah, blah, blah to save de Planet. Do more than just talk! This is my 2nd 15 inch MacBook Pro unibody.
The first one was a model, it lasted me 5 years. The current one was bought mid I have only occasionally shutdown my Macbooks when I had to fly overseas. I have restarted them due of updates. I have a MacMini as my main workstation. I have heard through others as well, knowledgeable about computers and heard elsewhere that excessive shutting down and starting up is not healthy for the hard disks.
Another reason is because I have almost 15TB attached externally to the macmini, primary and backup drives. I would necessarily need to unmount those and remount them every time I wanted to shutdown. Also, I do scheduled nightly backups around and a. Those would not be accomplished if I shutdown. Makes no sense to keep the screen on if not in front of the computer. The Macbook Air I keep closed lid sleep mode unless of course I am using then. I generally turn off my computers over over night or when I finish using them.
I even turn off at the power point to eliminate residual usage and standby powers usage of the other devices connect to the same powerboard. Since our computers can be off for days at a time and I never get up in the middle of the night to use the computer, this option makes sense for us. My iMac only take around 40s to startup. Just a question to those with extensive electronic experience.
So although 10 years ago it may have been better to leave HDD spinning for longer, now, turning you computer on and off daily or allowing it to sleep does not significantly increase your risk of HDD failure? Very well written article. Liked the well thought structure.
I tend to let my Macbook go to sleep automatically. Never had a problem, drive failure, or anything. Keep backups of course though! I agree with Lonnie Denison on this one. I have been in the electronics field for 43 years now and have maintained numerous types of computer systems over the years. I do NOT power my currently 5 different computers down unless I have to. While I do not have any system yet with a SSD drive, I have only experienced 2 drive failures in the past 8 years.
Of those two drive failures, they have all failed after a power cycle. On those units that have hardware, fans and contactors , failure usually occurs because of under exercise. Then guess what? It crashed every time I tried to sleep it. Short of getting a new motherboard, Apple offered no fix. On my current late 09 iMac, I sleep it during the day between periods of use, and shut down at the end of the day.
Plus I put a dust cover over it at night. I put all my Macs to sleep. With Macbook Pro it is easy, just close a lid. It is not a big deal, but anyway I would prefer just leave it knowing that it will go to sleep after some minutes. Even if my Mac Pro has SSD as startup disk I prefer sleep to shutdown, because even with relatively fast boot it wakes up faster and I reboot or shutdown my Macs only if it is absolutely necessary.
Sleeping a Mac
Laptop users with SSDs should shut down instead of shutting the lid. The goal with SSDs is to minimize writes. A clean boot eliminates that risk. Shutting down and booting up again is still a miracle cure for some of the quirkier problems that occur on computers. I use sleep exclusively and see no reason to shut down anymore. Think of the iPad and iPhone, they only reboot for system software and they never shut down. A Mac is becoming not so different. I always sleep unless I have to do a system task that will take some time like virus scan, in that case I put the display to sleep.
I would like to point something out about your posting today with regards to shutdown, sleep, or leaving a mac running. In my experience as a systems administrator over the past 15 years, and with having to regularly service and maintain thousands of machines, I have made and discussed with others the following observations. While your logic for complete shutdown and sleep is valid, I must disagree about the pros and cons section of the leaving the system on.
First, one of the most intense uses of a hard drive is the powering on and off. Most hard drive failures occur not from consistent usage, but from excessive power cycles or reboots. When you sleep the system, you also stop the drive from spinning. Mechanically, this will shorten the life of the drive more than having it powered on and spinning constantly. This one reason more than any other is the main reason I leave my system powered on.
Next, with regards to heat and other component usage — the best thing for this is actually simply sleeping the display.
This is especially true for the iMac, since the heat of the display is so closely intertwined with the rest of the components. I believe a solid case can be made that if you use your Mac on a daily basis, you can achieve better longevity from leaving the system powered on and the display asleep when not in use. Sleep the system if gone for say, a weekend. Power the system off if gone for a long term. The main things you have to worry about failing in a computer are the mechanical items… the moving parts.
Hard drive first, Fans next, and then anything that relies on the fans for cooling. If you keep the drive spinning, and you keep dust and other particulates out of the air intakes — you can achieve the best overall longevity from having the system stay energized and reduce the number of startups, either hard from shutdown or soft from sleep. Though for the hard core energy conscious, sleeping may be the best idea.
It just depends on what you may be running on your system that you want to keep available for service, or how environmentally conscious you wish to be. Anyway, thanks for discussing this topic. Having worked on and used computers over a span of over 40 years my experiences are in line with yours. One point you failed to make clear is that a leading cause of metal fatigue is the continual shrinking and expanding that occurs when these mechanical devices heat up and cool down. My experiences are that running things at as constant a temperature as possible is a good idea.
Anyway, I do the same as you do. I agree with leaving an iMac on constantly. A computer engineer told me some years ago, that the quickest way to shorten your computers life, was to turn it on and off every day. He said the constant heating and cooling of all the components by doing this, will lead to hardware failure 10 times faster than having it at a constant temperature.
It is always good to turn off your computer if your not using it for a long period of time. Especially if your computer is connected to the internet constantly you might want to shut it down. People please use common sense. The heating and cooling of these stresses them like anything made from metal. Would I leave my machine on? No, I use standby to save energy, but anyone with commence knows that heating and cooling is what wears an electronic device out. I agree with everything said. So I think turning your system on a minimum of times a year is not advised, power consumption issues aside.
It still works just fine. After reading this, I am never turning my computer off again. I will use display sleep from now on. Performance gets laggy and rebooting cleans that up. So I tend to reboot and keep my system up and running all the time like it was a server. I agree. Going back to the old days when computers were expensive, the companies I worked at promoted this same logic.
My Mac Pro at work, I have is scheduled to sleep after the work day, on weekdays then have it wake up right before I get into the office. I do this because sometimes when I leave work, I need to get files in one of the hard drives inside. Although there have been times I needed to get into it on the weekend and I was basically screwed because it was completely off. What do you use to schedule your mac to go to sleep at specific times? Is there an app or just something within OSX that you use?
I find a hot corner very helpful for this. Then at night I shut it down, because my room is already hot enough at night without a computer running…. I am surprised nobody has mentioned cron… there are a 1 day, 1 week and 1 month, I think?
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How to lock your Mac or put your screen to sleep in macOS
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You can also use a keyboard shortcut to put your Mac to sleep.
Do you know which sleep mode is the best for your Mac? - Blog - MacKeeper™
This works in a similar way to the previous one, but rather than just lock your Mac it powers down the hard drive, puts the CPU into low power mode and stops background tasks in order to save energy. Hot corners allow you to drag to the mouse pointer to one of the four corners of the screen to initiate an action — you can use one as a sleep shortcut on your Mac.
To set it up:. Fast user switching allows you to quickly log into another user account on your Mac. But you can also use it to return to the log in window, which locks your Mac. To lock your Mac, click the fast user switching menu at the right of the menu bar and choose Login Window…. You can download CleanMyMac for free and give it a try.
As you can see, putting your Mac to sleep or locking it is very easy. If you regularly lock your Mac to prevent others accessing it, you should ensure your login password is strong and secure. Finally, if privacy is important, CleanMyMac has a couple of tools that can help delete sensitive data. How To. Blog How To News. Hit Return or Enter to search. How to lock your Mac or put your screen to sleep in macOS.