Enable noatime in Mac mini mid-2011

ccartola · Oct 14, 2011, 08:41 AM

Well, I have acquired a SSD Vertex 3 for my mini mid-2011 Lion OS. I have enabled TRIM compatibility, but I am unable to enable noatime with the .plist in /Library/LaunchDaemons file.

Is it necessary to enable it (noatime), with Lion or is not?

My com.noatime.root.plist is:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>Label</key>
<string>com.noatime.root</string>
<key>ProgramArguments</key>
<array>
<string>mount</string>
<string>-uwo</string>
<string>noatime</string>
<string>/</string>
</array>
<key>RunAtLoad</key>
<true/>
</dict>
</plist>

But it doesn't work. I also gave root permises with:

sudo chown root:wheel /Library/LaunchDaemons/com.noatime.root.plist

but when I writed: mount | grep " / "

only appears: /dev/disk0s2 on / (hfs, local, journaled), as you see, it doesn't appear noatime.

Any ideas, please? Thank you in advance.

ccartola · Oct 18, 2011, 08:36 AM

Nobody?

costabunny · Oct 18, 2011, 08:56 AM

just tried it on mine (iMac 2011, OS X 10.7.2, SSD)- works ok.

Code:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
    <dict>
        <key>Label</key>
        <string>com.noatime.root</string>
        <key>ProgramArguments</key>
        <array>
            <string>mount</string>
            <string>-uwo</string>
            <string>noatime</string>
            <string>/</string>
        </array>
        <key>RunAtLoad</key>
        <true/>
    </dict>
</plist>

and result (after a reboot)

Code:

root# mount | grep " / "
/dev/disk0s2 on / (hfs, local, journaled, noatime)

can you show the output of:

Code:

sudo ls -l /Library/LaunchDaemons/com.noatime.root.plist

sascha h-k · Oct 18, 2011, 10:38 AM

and to check in terminal type: mount

then you will see .../.../ "noatime" ...

here again how and more:

http://poller.se/2010/08/optimizing-...or-ssd-drives/

MJL · Oct 18, 2011, 10:00 PM

according to documentation noatime helps with stability, it is one thing that I would not turn off in spite of the overhead

shortcut3d · Oct 19, 2011, 02:23 PM

Why would one enable TRIM under OSX using a Sandforce 2200 series controller? According to test from OWC its not necessary and dangerous. Many reviews have shown the Sandforce 2200 series controller based drives are very resilient because of garbage collection.

ccartola · Oct 21, 2011, 03:48 AM

Let's see:

1. I talk about "noatime", not TRIM. TRIM is not necessary and I had to unable it because appeared the beachball every little time (incompatibility???)... Since I unabled, no beachball appear.

2: I tried http://poller.se/2010/08/optimizing-...or-ssd-drives/, but nothing happened, no noatime active neither efficient.

3: Thank you very much costabunny, but if you see is absolutely the same than mine. I don't know why, but "noatime" in mac mini mid-2011 is not actived with it (perhaps unnecessary?, perhaps incompatible?) I really don't know, but I only get with that .plist:
/dev/disk0s2 on / (hfs, local, journaled), as you see no "noatime" after typing in terminal:
sudo ls -l /Library/LaunchDaemons/com.noatime.root.plist

Thank you very much for all your answers, but the problem is still ********ng me.

Oct 14, 2011, 08:41 AM	#1
ccartola macrumors newbie Join Date: Oct 2011	Enable noatime in Mac mini mid-2011 Well, I have acquired a SSD Vertex 3 for my mini mid-2011 Lion OS. I have enabled TRIM compatibility, but I am unable to enable noatime with the .plist in /Library/LaunchDaemons file. Is it necessary to enable it (noatime), with Lion or is not? My com.noatime.root.plist is: <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd"> <plist version="1.0"> <dict> <key>Label</key> <string>com.noatime.root</string> <key>ProgramArguments</key> <array> <string>mount</string> <string>-uwo</string> <string>noatime</string> <string>/</string> </array> <key>RunAtLoad</key> <true/> </dict> </plist> But it doesn't work. I also gave root permises with: sudo chown root:wheel /Library/LaunchDaemons/com.noatime.root.plist but when I writed: mount \| grep " / " only appears: /dev/disk0s2 on / (hfs, local, journaled), as you see, it doesn't appear noatime. Any ideas, please? Thank you in advance.
	0

Oct 18, 2011, 10:38 AM	#4
sascha h-k macrumors 6502 Join Date: Apr 2004 Location: vienna / austria	and to check in terminal type: mount then you will see .../.../ "noatime" ... here again how and more: http://poller.se/2010/08/optimizing-...or-ssd-drives/ __________________ mbp 17" i7 SSD / iMac 27" i7 SSD / mac mini i7 2x SSD / iPad3 / iPhone4s & other ...
	0

Oct 19, 2011, 02:23 PM	#6
shortcut3d macrumors 6502a Join Date: Aug 2011	Why would one enable TRIM under OSX using a Sandforce 2200 series controller? According to test from OWC its not necessary and dangerous. Many reviews have shown the Sandforce 2200 series controller based drives are very resilient because of garbage collection. __________________ 2010 27" iMac 2.93GHz i7\|32GB\|240GB OWC Pro 3G\|1TB WD Black 2011 15" MBP 2.3GHz i7\|16GB 1600MHz\|480GB OWC Pro 6G\|750GB WD Black 2011 Mini 2.7GHz i7\|8GB 1866MHz\|512GB Samsung 830\|2TB WD Green
	0

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Oct 18, 2011, 08:36 AM	#2
ccartola Thread Starter macrumors newbie Join Date: Oct 2011	Nobody?
	0

Oct 18, 2011, 10:00 PM	#5
MJL macrumors 6502a Join Date: Jun 2011	according to documentation noatime helps with stability, it is one thing that I would not turn off in spite of the overhead
	0

Oct 21, 2011, 03:48 AM	#7
ccartola Thread Starter macrumors newbie Join Date: Oct 2011	Let's see: 1. I talk about "noatime", not TRIM. TRIM is not necessary and I had to unable it because appeared the beachball every little time (incompatibility???)... Since I unabled, no beachball appear. 2: I tried http://poller.se/2010/08/optimizing-...or-ssd-drives/, but nothing happened, no noatime active neither efficient. 3: Thank you very much costabunny, but if you see is absolutely the same than mine. I don't know why, but "noatime" in mac mini mid-2011 is not actived with it (perhaps unnecessary?, perhaps incompatible?) I really don't know, but I only get with that .plist: /dev/disk0s2 on / (hfs, local, journaled), as you see no "noatime" after typing in terminal: sudo ls -l /Library/LaunchDaemons/com.noatime.root.plist Thank you very much for all your answers, but the problem is still ********ng me.
	0