s_w_i_t_t_e_r_s

Q: Frequent crashes when computer is sleeping

I have a Mac Pro Early 2008. Here's my set-up:

 

  • BootDrive (Mercury Excelsior PCI SSD 240 GB): contains OS X and applications
  • DataDrive (2.25 TB RAID 0 with three 750 GB drives): contains files, pictures, music, video
  • Time Machine Backup (2 TB drive)

 

Recently I've been experiencing frequent crashes. These mostly happen when the computer is sleeping. For example, I'll put it to sleep before going to bed, and I'll wake up in the morning to find it unresponsive when I attempt to wake it up. (Also: the computer tends to be waking itself up from sleep, i.e. I'll wake up and it will be powered up, even though I put it to sleep the night before.)

 

When I notice that it has crashed, I hold down the power button on the tower until it shuts off, then press it again to start up. When I do, it boots into Safe Mode. Does this suggest a problem is due to a peripheral or drive?

 

The first time this happened, one of my internal drives got corrupted and I had to use Disk Utility to repair it. The second time it happened the permissions on my data drive got screwed up, and a few files on that drive got corrupted (including my Lightroom library). It just happened a third time, and once again the permissions on the Data drive are screwed up.

 

If I recall, this all started happening after I installed the Mercury Excelsior PCI SSD. But it appears to be functioning well. I've run Verify Disk and it says it has no problems.

 

Any ideas? I'm not even sure where to begin to troubleshoot this, but something seems seriously wrong.

Mac Pro 2.8 (Early '08), Mac OS X (10.5.2), 10 GB RAM, 74GB 10k Raptor, 2x 750GB RAID, 23" ACD

Posted on Jun 29, 2012 7:10 AM

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Q: Frequent crashes when computer is sleeping

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  • by s_w_i_t_t_e_r_s,

    s_w_i_t_t_e_r_s s_w_i_t_t_e_r_s Jul 17, 2012 6:55 PM in response to Grant Bennet-Alder
    Level 1 (5 points)
    Desktops
    Jul 17, 2012 6:55 PM in response to Grant Bennet-Alder

    Thanks, Grant. I've already done that. My question is specifically about the Lightroom previews file.

  • by Greg Bowerman,

    Greg Bowerman Greg Bowerman Jul 17, 2012 9:17 PM in response to s_w_i_t_t_e_r_s
    Level 1 (15 points)
    Jul 17, 2012 9:17 PM in response to s_w_i_t_t_e_r_s

    I have the active .lrcat file on the 120GB SS, but I direct .lrcat backup files to the 480. It is the backups that take all the space. I can find no reason to keep the oldest backups and therefore delete them periodically to maintain adequate space on the 480. I used to let the backups go to the 120, and that is fine as long as you delete the older ones periodically, and more frequently than is necessary on the 480. Using this arrangement, I see no isses with rendering 1:1 previews. I have the Lightroom File Handling preference "JPEG Previews" set to full size.

     

    By redirecting the location of .lrcat backup files, you should resolve the space-limitation issue on the boot drive. 

     

    Best of luck and I hope that helps.

  • by s_w_i_t_t_e_r_s,

    s_w_i_t_t_e_r_s s_w_i_t_t_e_r_s Jul 17, 2012 9:38 PM in response to Greg Bowerman
    Level 1 (5 points)
    Desktops
    Jul 17, 2012 9:38 PM in response to Greg Bowerman

    Yes, very helpful again!

     

    How do I direct the .lrcat backup files to the 480?

  • by Greg Bowerman,

    Greg Bowerman Greg Bowerman Jul 18, 2012 6:10 AM in response to s_w_i_t_t_e_r_s
    Level 1 (15 points)
    Jul 18, 2012 6:10 AM in response to s_w_i_t_t_e_r_s

    If not already configured as such, have Lightroom preferences set to do a backup each time it is quitted (default). Then, when quitting lightroom, a "Back Up Catalog" window opens asking whether to "Back Up" or Skip this time". It is in this window where you can click to choose a new destination for back up files.

     

    Cheers!  If you'd like to return a favor, give me a "Like" @: http://www.facebook.com/CreekCrossingPhotography

  • by s_w_i_t_t_e_r_s,

    s_w_i_t_t_e_r_s s_w_i_t_t_e_r_s Jul 18, 2012 6:18 AM in response to Greg Bowerman
    Level 1 (5 points)
    Desktops
    Jul 18, 2012 6:18 AM in response to Greg Bowerman

    Just liked your Facebook page.

     

    I think I misunderstood you regarding the back-ups; I thought you were referring somehow to old preview files. My problem was that when I rendered 1:1 previews for my entire catalog, it took up an additional 40 GB of space - which is what filled up my Boot Drive.

     

    Right now the Previews file is 29 GB even without 1:1 previews rendered (I discarded them after I noticed the Boot Drive filling up). This went up to 70 GB after rendering 1:1 previews for all of the photos in my LR catalog.

     

    I'm not using LR's back-up feature; I use SuperDuper to create a clone of my Images drive, and I also use CrashPlan for offsite backup of my images. So there aren't any backups on my Boot Drive taking up space.

     

    So I guess what I was wondering is how you got away with rendering 1:1 previews for all of your photos on a 120 GB SSD? Maybe I just have too many photos for that (14,000)?

  • by Greg Bowerman,

    Greg Bowerman Greg Bowerman Jul 18, 2012 7:02 AM in response to s_w_i_t_t_e_r_s
    Level 1 (15 points)
    Jul 18, 2012 7:02 AM in response to s_w_i_t_t_e_r_s

    Until you brought this to my attention, I had not appreciated how large the previews file can become, mine is about 10 GB, and my image archive currently holds only 230 GB (4,750 images), so it is due to the size of your archive as you suspect. I am not a very prolific photographer and I do keep my collection more severely edited than most. I also like having 1:1 previews rendered in advance to avoid rendering delays, but it is not critically important.  

     

    I have not tried doing this, but it might be possible to store the active .lrdata and .lrcat files on the larger SSD, but these files are part of the application and it seems likely they need to stay located on the Boot drive. Lightroom might not open if this file is relocated off the Boot drive. Consulting Adobe beforehand would be a good idea to see just how one could go about doing this relocation if it is an option at all. The alternatives would be to eventually go to a larger SSD Boot, or stay with a smaller preview option.

     

    Let me know how it goes if you pursue the relocation.

     

    Thanks for the Like!

     

    Greg

  • by s_w_i_t_t_e_r_s,

    s_w_i_t_t_e_r_s s_w_i_t_t_e_r_s Jul 18, 2012 7:36 AM in response to Greg Bowerman
    Level 1 (5 points)
    Desktops
    Jul 18, 2012 7:36 AM in response to Greg Bowerman

    Thanks Greg. I may get a larger SSD for Boot Drive, or I may just render 1:1 previews for my most recent images that I'm still working with frequently. I selected the option to discard 1:1 previews 30 days after import; perhaps that will do the trick.

     

    Then again, with the price of SSDs falling, it may make sense to just get a larger drive.

  • by Greg Bowerman,

    Greg Bowerman Greg Bowerman Jul 18, 2012 7:47 AM in response to s_w_i_t_t_e_r_s
    Level 1 (15 points)
    Jul 18, 2012 7:47 AM in response to s_w_i_t_t_e_r_s

    The 30-day option is a good one. You've got enough space for the time being. No hurry to upgrade to a larger Boot. I've enjoyed our chat. It is always good to know what is going on under the hood!

     

    Cheers!

  • by aqnguyen87,

    aqnguyen87 aqnguyen87 Sep 14, 2012 6:55 AM in response to s_w_i_t_t_e_r_s
    Level 1 (0 points)
    Sep 14, 2012 6:55 AM in response to s_w_i_t_t_e_r_s

    SOLUTION for SSDs machines.

     

    For those of you with 3RD party SSDs, this solution worked for me.

    Update the firmware on your SSDs, after 10.8 something screwy happened to where the mac would not be able to communicate with the SSD, making it freeze and have to do a forced reboot. Manufacturers like OSZ and Sandisk, addressed the issue in seperate firmware updates. I just updated mine and after testing with sleeping for both 20mins and 8 hours, the freezing issue has stopped. Hopefully, this will help others as well.

     

    Go to the manufacturers website for your SSD and update to its latest SSD firmware, reboot and it should all be better now. Goodluck!

  • by Alex Zavatone,

    Alex Zavatone Alex Zavatone Oct 23, 2012 6:58 AM in response to aqnguyen87
    Level 1 (1 points)
    Oct 23, 2012 6:58 AM in response to aqnguyen87

    What is happening on the crash is that it is trying to talk to the service that shuts the drive down in case of sudden movement or dropping of the device.  I have turned my Mac's sudden movement sensor off and this still happens and has happened on my last two OWC SSDs.

  • by The hatter,

    The hatter The hatter Oct 23, 2012 7:18 AM in response to Alex Zavatone
    Level 9 (60,935 points)
    Oct 23, 2012 7:18 AM in response to Alex Zavatone

    Sudden motion has nothing to do with the Mac Pro which is what this forum's focus on (even though we get a dozen strays a day of MacBook Pro owners).

     

    So whether there is an issue or not, the people here aren't using notebooks.

  • by Alex Zavatone,

    Alex Zavatone Alex Zavatone Oct 23, 2012 7:24 AM in response to The hatter
    Level 1 (1 points)
    Oct 23, 2012 7:24 AM in response to The hatter

    It sure has a lot to do with my SSD crash since the stack trace says it's the SMC that's causing the problem.

     

    FYI, the topic of this post is "Frequent crashes when computer is sleeping", not "Frequent crashes when my desktop computer is sleeping".  Google brings this up as a top search on the topic for SSD crashes while asleep on the Mac.

     

    Also, I'm not using a "notebook", it's a MacBook Pro.

  • by Greg Bowerman,

    Greg Bowerman Greg Bowerman Oct 23, 2012 7:40 AM in response to s_w_i_t_t_e_r_s
    Level 1 (15 points)
    Oct 23, 2012 7:40 AM in response to s_w_i_t_t_e_r_s

    Just a quick update on my Mac Pro. I went ahead and tried yet again installing a PCIe SSD (Accelssior) having been informed that the sleep/freeze issue had been resolved. Once I had everything up and running and had designated the PCIe SSD as the Startup Disk, I did not notice that much of an increase in speed using Photoshop (unlike the intitial effort), but more significantly, I went ahead and tried sleeping the computer only to find the computer froze up! Not only did it freeze, the PCIe SSD dissappeared altogether and the computer had to revert to using the original startup disk that had remained installed. It took 3 hard restarts to get up and running again!

     

    OWC took it back, my third return with this technology. I don't think I'll try again anytime soon. Instead, to open up another bay drive, I'm going with installing a hard drive in the spare optical drive location.

     

    On another note, I did upgrade from Lion to Mountain Lion, and it is an improvement! I did notice an uptick in speed using most any application. I did have to install a new driver for both printers (one printer still worked, but Canon recommended the update anyway), and otherwise, everything worked just fine. I'd give Mountain Lion the "thumbs up". It is well worth the 20 bucks. 

  • by Alex Zavatone,

    Alex Zavatone Alex Zavatone Oct 23, 2012 10:20 AM in response to Greg Bowerman
    Level 1 (1 points)
    Oct 23, 2012 10:20 AM in response to Greg Bowerman

    Hi Greg.  I've got an OWC PCIe 120 GB in a Thunderbolt (Helios) chassis on my 2011 MBP and an internal OWC 480 as an internal. 

     

    FYI, I get no crashes on sleep if I do not move my device while asleep under 10.6.8.

     

    Also, the throughput in the two devices are nearly identical (~450+ MB/s), not the 700 MB/s+ that is advertised for the Accelsior.

     

    OWC 480 GB 6G

    http://i.imgur.com/IlrKx.png

     

    120 GB Accelsior in a Helios Thunderbolt enclosure

    http://i.imgur.com/tSoOY.png

     

    FYI, if I do sleep my device and it gets moved, even though the SMC is disabled, often it does crash while asleep. 

     

    This is part of the stack trace on my crash.

      Kernel Extensions in backtrace (with dependencies):

             com.apple.driver.SMCMotionSensor(3.0.1d2)@0xffffff7f81117000->0xffffff7f8111eff f

                dependency: com.apple.driver.AppleSMC(3.1.0d5)@0xffffff7f80d94000

             com.apple.driver.AppleSMC(3.1.0d5)@0xffffff7f80d94000->0xffffff7f80d9efff

                dependency: com.apple.iokit.IOACPIFamily(1.3.0)@0xffffff7f80800000

     

    Though this doesn't directly address your problem, I hope that it helps somewhat.  Maybe adding a SSD that is not on a PCIe card is your solution?  I've been using one for over 6 months and love the responsiveness of the Mac.  I've even moved my 240 into my white 6 year old MacBook and it's snappier than a one year old 13" MBP.

  • by Greg Bowerman,

    Greg Bowerman Greg Bowerman Oct 23, 2012 10:46 AM in response to Alex Zavatone
    Level 1 (15 points)
    Oct 23, 2012 10:46 AM in response to Alex Zavatone

    Thanks, Alex

     

    I've been using the regular SSDs for a while myself, and I love the upgrade. One thing of interest with the current Mac Pro computers; there is no benefit using 6G over the 3G SSDs. I use a 120 3G SSD for Startup and a 480 3G SSD for data I like to open quickly. Where speed is not an issue, I use 2TB hard drives for the remainder of my data storage (primarily for large image files).

     

    Greg

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