[underwhelmed]

The new NBI RC fixes this.

[fasttr]

Follow this tip to remove the hibernate (sleepimage) file totally and reclaim 1 to 2 GB of drive space on your SSD...

Accelerate Your Mac News Archive for Friday July 24, 2009

[Bear Hunter]

Originally Posted by underwhelmed

The new NBI RC fixes this.

How does it fix this? Was there something we should have deselected before running it? I have to assume the file is there for a reason (unless it is generated in error), so I would like to ask the experts what the file is for, and what secondary effects it has when removed (ie. no indexing which equals what?).

[tchariya]

Originally Posted by fasttr

Follow this tip to remove the hibernate (sleepimage) file totally and reclaim 1 to 2 GB of drive space on your SSD...

Accelerate Your Mac News Archive for Friday July 24, 2009

This is the key right here. I'm not one for sleep or hibernate mode. Have lost precious time trying to recover work and sanity with a half ass shutdowns of sleep/hibernate. Hibernate is a sound idea, but to write out 2+GB of files might take a long time and a big waste of space...especially for those using small SSD.

OSX boots up quick and shuts down quick! Since I'm using my hackintosh to do web surfing, play music, watch videos, I'm not in a hurry to boot it up or save my current work space.

But to each its own.

[Bear Hunter]

Originally Posted by Bear Hunter

How does it fix this? Was there something we should have deselected before running it? I have to assume the file is there for a reason (unless it is generated in error), so I would like to ask the experts what the file is for, and what secondary effects it has when removed (ie. no indexing which equals what?).

Ok, so I went back and checked NBI 8.3RC3 "Disable hibernation and remove sleep file" is checked by default. I did not deselect it when I upgraded. So I'm going to say that current NBI does not fix this issue.

[tchariya]

BTW: I did not come up with this. I'm just doing a drect copy/paste from the above link.

This is how I turned off hibernate and removed the sleep file from the command line..

*****
"Subject: Turning off hibernate
Yes, for the current generation of SSD, it is recommended to turn off hibernate mode on laptops to preserve drive life (which is a shame, because it would finally make hibernate fast enough to use with 4GB of RAM). I turn it off for my normal HD due to slow sleep when writing a 4GB file, and occasional freezing on wake, which defeats the purpose of safe sleeping anyway. To refresh readers' on the methodology.

Using terminal, enter: sudo pmset hibernatemode 0 (FYI: the -a parameter doesn't seem to be required based on tests w/o it using both battery and AC modes)
Voila. Now simply reboot. (And if you want to reclaim the space the hibernate file takes up (valuable on an SSD), you use terminal for that. The file is found in the /var/vm/ (cd /var/vm)folder, and is named sleepimage. Simply sudo rm (sudo rm sleepimage) that file.)
(FYI - There's also a utility (free) called "smart sleep" mentioned in a later post on More notes on Disabling Hibernate mode)

You can confirm the change with sudo pmset -g which also shows you the other variables in your power management settings. You can change things like lidwake as well, setting it to 0, which will mean you can open the lid, but it won't wake the machine until you press a key. This is a worthwhile change to make, as it will eliminate the occasional failure to wake from sleep problem (solid white light, but black screen). (Disabling lid wake switch was also a tip from years ago where some readers w/notebooks (older models w/lid release buttons) put in carry bags accidently had the lid release tripped during travel - resulting in the battery being drained.-Mike)
This is also where you can turn off sms (sudden motion sensor), which is not necessary for drives with their own sms like certain WD Scorpio drives (and can cause random freezing), and also unnecessary and may cause conflicts with those using SSDs on the SATA bus.
-Mike K."
*****

[ad720]

Originally Posted by Bear Hunter

Ok, so I went back and checked NBI 8.3RC3 "Disable hibernation and remove sleep file" is checked by default. I did not deselect it when I upgraded. So I'm going to say that current NBI does not fix this issue.

Same here, I used the latest NBI and still had to use the terminal command to get rid of the error.

EDIT: I did not use RC3 sorry, it was the previous release.

[mechdrew]

Did those of your who claim NBI 0.8.3 RC3 doesn't disable hibernation actually use it? It was just released on Wednesday, and this thread is significantly older than that.

[tchariya]

Originally Posted by mechdrew

Did those of your who claim NBI 0.8.3 RC3 doesn't disable hibernation actually use it? It was just released on Wednesday, and this thread is significantly older than that.

I didn't have an issue with the new release of NBI.

Then again, I had already done the command line items to disable.
I can not vouch for that feature.

[underwhelmed]

Originally Posted by Bear Hunter

Ok, so I went back and checked NBI 8.3RC3 "Disable hibernation and remove sleep file" is checked by default. I did not deselect it when I upgraded. So I'm going to say that current NBI does not fix this issue.

Say what you want, you would be wrong. Run the NBI and see if the message is still there.

Or read post #1 in the new NBI RC thread.