SSD "Maintenance" Question

I do not recommend doing anything to your SSD. You don't want utilities pushing stuff around needlessly doing writes to ununsed cells. Those utilities are mainly designed for HDD's not SSD's. About the only concession you might make to the SSD is to try to install as much ram as possible to minimize paging (writing to the backing store, virtual memory, swap space...pick your favorite term).

Heh, your too quick 😉 I wasn't finished editing my post.

I did want to run the nightly/weekly/monthly scripts for OS X maintenance that are usually run overnight since I don't keep my laptop active during the night. I used to use Onyx for that, but I'm afraid of what it might do to the SSD. Any suggestions?

If your machine is sleeping when one of the daily, weekly, or monthly maintenance task is scheduled to run then it will still be run shortly after you wake your machine. If the machine is off then it is not rescheduled until it is time to run the next day.

The fact that the periodic maintenance tasks are run after waking from sleep is different that it was from earlier systems like Tiger since cron is no longer used to schedule these tasks.

Here's some related reading you might find interesting:

Optimizing Mac OS X for SSD drives

MacPerformanceGuide (look at the articles in the SSD section)

Hi. I would like to know if you've done these operations to maintain the ssd drive and if you appear to be useful. In particular the one concerning the sleeping mode.

Thanks.

1. Sleeping mode

By default, when closing the lid on a MacBook, the content of the ram is saved to disk for safety. The ram is still powered on however, and is used when starting up again. The content saved on disk is only used in case of a power loss. This behavior can be changed, at the cost of some safety, so that memory content is not saved to disk. On the bright side, you also save some disk space (equal to the amount of your RAM).

(Sorry for my bad english... 🙂 )

Thanks. So you have open Terminal and make this?

We can start by checking the current setting, fire up Terminal.app and type the following.

$ sudo pmset -g | grep hibernatemode hibernatemode 3

3 is the default mode, we want to change this to 0 to disable disk writes.

$ sudo pmset -a hibernatemode 0

Now we can remove the old sleepimage.

$ sudo rm /var/vm/sleepimage

But "closing the lid on a MacBook" and Sleep mode on Apple menu it's the same thing?

And what do you think about this: "closing the lid on a MacBook" and Sleep mode on Apple menu it's the same thing?