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The New Coffee Room

  1. TNCR
  2. General Discussion
  3. Hard drive cruft

Hard drive cruft

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  • L Offline
    L Offline
    Loki
    wrote on last edited by
    #6

    File compression?

    1 Reply Last reply
    • CopperC Offline
      CopperC Offline
      Copper
      wrote on last edited by Copper
      #7

      Some files, like deleted photos or email, might hang around for a while before they are actually deleted.

      Maybe a bunch of files, deleted 30 or 90 days ago, timed out,

      1 Reply Last reply
      • George KG George K

        A while ago, I mentioned that I'm booting my iMac from a 2TB SSD in an external Thunderbolt enclosure. It's worked really well all this time, but I've noticed that I've been losing hard drive space. It went from 1.1 TB free to about 700 Gigs free over the period of about a month.

        I did a search for large files, and the largest I could find was 140 gigs or so - my photo album.

        Even all the German porn that Jon sent me wasn't taking up any space, so I didn't delete it.

        There was an OS update released last week, and I finally got around to installing it this AM. I now have 1.4 TB free.

        What the hell? What got deleted?

        jon-nycJ Offline
        jon-nycJ Offline
        jon-nyc
        wrote on last edited by
        #8

        @George-K said in Hard drive cruft:

        Even all the German porn that Jon sent me wasn't taking up any space, so I didn't delete it.

        What about the Swedish porn? That's high-res

        Only non-witches get due process.

        • Cotton Mather, Salem Massachusetts, 1692
        1 Reply Last reply
        • X Offline
          X Offline
          xenon
          wrote on last edited by xenon
          #9

          OS's are using more and more free space as cache. Especially as storage has gotten faster (SSD)

          Often time there's a disconnect between how large something is on storage and how big the footprint is when it's running (sitting in ram).

          Caching can bridge the gap by reducing the processing needed to get from smaller footprint to larger footprint.

          I notice it a lot on my iphone - dunno if they've started doing that more aggressively on macs.

          The annoying part is depending on which application you ask - it may give you a logical view of what's on disk (smaller footprint), while some utilities will show any data that's on your drive (including temp files and cache)

          George KG 1 Reply Last reply
          • X xenon

            OS's are using more and more free space as cache. Especially as storage has gotten faster (SSD)

            Often time there's a disconnect between how large something is on storage and how big the footprint is when it's running (sitting in ram).

            Caching can bridge the gap by reducing the processing needed to get from smaller footprint to larger footprint.

            I notice it a lot on my iphone - dunno if they've started doing that more aggressively on macs.

            The annoying part is depending on which application you ask - it may give you a logical view of what's on disk (smaller footprint), while some utilities will show any data that's on your drive (including temp files and cache)

            George KG Offline
            George KG Offline
            George K
            wrote on last edited by
            #10

            @xenon when I saw this happening, I deleted my caches. Didn't make any difference.

            "Now look here, you Baltic gas passer... " - Mik, 6/14/08

            The saying, "Lite is just one damn thing after another," is a gross understatement. The damn things overlap.

            1 Reply Last reply
            • George KG George K

              @taiwan_girl said in Hard drive cruft:

              @George-K What update are you at? I am still at update 10.14.6, mainly because I am afraid to update further because I understand that Apple went to 64 architecture instead of 32 architecture (?), and some old programs may not work with the new update. Is there any way to determine this?

              I'm running 10.15.15.

              There's a way to find what applications are 32 bit and not compatible.

              https://osxdaily.com/2018/03/06/find-32-bit-apps-mac/

              taiwan_girlT Offline
              taiwan_girlT Offline
              taiwan_girl
              wrote on last edited by
              #11

              @George-K said in Hard drive cruft:

              There's a way to find what applications are 32 bit and not compatible.

              Thank you so much!!! I did that. A lot of programs that I dont know what they are listed as being 32 bit. LOL

              Some that may be a problem for me are

              Adobe Digital Editions (I used to down load books from library)
              Garage Band (does this update with the new operating system)?
              iMovie (does this update with the new operating system)?

              Other than those, i hope I am okay. 🙂

              George KG 1 Reply Last reply
              • George KG George K

                A while ago, I mentioned that I'm booting my iMac from a 2TB SSD in an external Thunderbolt enclosure. It's worked really well all this time, but I've noticed that I've been losing hard drive space. It went from 1.1 TB free to about 700 Gigs free over the period of about a month.

                I did a search for large files, and the largest I could find was 140 gigs or so - my photo album.

                Even all the German porn that Jon sent me wasn't taking up any space, so I didn't delete it.

                There was an OS update released last week, and I finally got around to installing it this AM. I now have 1.4 TB free.

                What the hell? What got deleted?

                AxtremusA Offline
                AxtremusA Offline
                Axtremus
                wrote on last edited by
                #12

                @George-K said in Hard drive cruft:

                There was an OS update released last week, and I finally got around to installing it this AM. I now have 1.4 TB free.

                What the hell? What got deleted?

                Not sure ... I am guessing it might have something to do with TimeMachine "local snapshots." It's the only thing I can think of that might take up 300GB. :man-shrugging:

                George KG 1 Reply Last reply
                • AxtremusA Axtremus

                  @George-K said in Hard drive cruft:

                  There was an OS update released last week, and I finally got around to installing it this AM. I now have 1.4 TB free.

                  What the hell? What got deleted?

                  Not sure ... I am guessing it might have something to do with TimeMachine "local snapshots." It's the only thing I can think of that might take up 300GB. :man-shrugging:

                  George KG Offline
                  George KG Offline
                  George K
                  wrote on last edited by
                  #13

                  @Axtremus said in Hard drive cruft:

                  @George-K said in Hard drive cruft:

                  There was an OS update released last week, and I finally got around to installing it this AM. I now have 1.4 TB free.

                  What the hell? What got deleted?

                  Not sure ... I am guessing it might have something to do with TimeMachine "local snapshots." It's the only thing I can think of that might take up 300GB. :man-shrugging:

                  Are those snapshots stored on my boot drive? I had no idea.

                  "Now look here, you Baltic gas passer... " - Mik, 6/14/08

                  The saying, "Lite is just one damn thing after another," is a gross understatement. The damn things overlap.

                  George KG 1 Reply Last reply
                  • taiwan_girlT taiwan_girl

                    @George-K said in Hard drive cruft:

                    There's a way to find what applications are 32 bit and not compatible.

                    Thank you so much!!! I did that. A lot of programs that I dont know what they are listed as being 32 bit. LOL

                    Some that may be a problem for me are

                    Adobe Digital Editions (I used to down load books from library)
                    Garage Band (does this update with the new operating system)?
                    iMovie (does this update with the new operating system)?

                    Other than those, i hope I am okay. 🙂

                    George KG Offline
                    George KG Offline
                    George K
                    wrote on last edited by George K
                    #14

                    @taiwan_girl iMovie and Garageband are installed and updated with the OS update.

                    Adobe Digital Editions is (I think) available in 64-bit for download from Adobe.com.

                    ETA: I just downloaded ADE, and installed it. Looks fine.

                    "Now look here, you Baltic gas passer... " - Mik, 6/14/08

                    The saying, "Lite is just one damn thing after another," is a gross understatement. The damn things overlap.

                    taiwan_girlT 1 Reply Last reply
                    • George KG George K

                      @Axtremus said in Hard drive cruft:

                      @George-K said in Hard drive cruft:

                      There was an OS update released last week, and I finally got around to installing it this AM. I now have 1.4 TB free.

                      What the hell? What got deleted?

                      Not sure ... I am guessing it might have something to do with TimeMachine "local snapshots." It's the only thing I can think of that might take up 300GB. :man-shrugging:

                      Are those snapshots stored on my boot drive? I had no idea.

                      George KG Offline
                      George KG Offline
                      George K
                      wrote on last edited by George K
                      #15

                      @George-K said in Hard drive cruft:

                      Are those snapshots stored on my boot drive? I had no idea.

                      https://support.apple.com/en-us/HT204015

                      https://www.macworld.com/article/3260635/how-to-delete-time-machine-snapshots-on-your-mac.html

                      "Now look here, you Baltic gas passer... " - Mik, 6/14/08

                      The saying, "Lite is just one damn thing after another," is a gross understatement. The damn things overlap.

                      1 Reply Last reply
                      • George KG George K

                        @taiwan_girl iMovie and Garageband are installed and updated with the OS update.

                        Adobe Digital Editions is (I think) available in 64-bit for download from Adobe.com.

                        ETA: I just downloaded ADE, and installed it. Looks fine.

                        taiwan_girlT Offline
                        taiwan_girlT Offline
                        taiwan_girl
                        wrote on last edited by
                        #16

                        @George-K Thank you! I will upgrade sooner rather than later.

                        1 Reply Last reply
                        • George KG Offline
                          George KG Offline
                          George K
                          wrote on last edited by
                          #17

                          I might have figured out what was causing the problem.

                          As Ax suggested, the "Time Machine Snapchat" was the probable culprit (though I couldn't verify it). It's an invisible file, so I never saw it.

                          So, what could have caused it to get so large?

                          In the last few weeks we've had power outages here, and my UPS was non-functional (Remember I asked about those? I did get a new UPS) and with power loss, the computer just turned off.

                          After restoration of power, I would consistently get an error message from Time Machine saying that the task couldn't be completed, throwing a "92" error code. This is a mysterious error code that I couldn't find the explanation for. Finally after some file deletions, several days, and changing preferences for Time Machine, it stopped throwing errors and everything appeared to be fine.

                          But...

                          I found out that when the computer crashes, Time Machine gets all confused, and it takes a long, long time for it to sort out what needs to be backed up and what doesn't. That's why it took a long time for Time Machine to stop giving errors.

                          I suspect that Time Machine was writing to that invisible file, with it growing larger with every attempt Time Machine made to back up. Then, when I upgraded the OS to the current version, the "snapshot" was deleted, freeing up a lot of space.

                          Does that make sense?

                          "Now look here, you Baltic gas passer... " - Mik, 6/14/08

                          The saying, "Lite is just one damn thing after another," is a gross understatement. The damn things overlap.

                          taiwan_girlT 1 Reply Last reply
                          • George KG George K

                            I might have figured out what was causing the problem.

                            As Ax suggested, the "Time Machine Snapchat" was the probable culprit (though I couldn't verify it). It's an invisible file, so I never saw it.

                            So, what could have caused it to get so large?

                            In the last few weeks we've had power outages here, and my UPS was non-functional (Remember I asked about those? I did get a new UPS) and with power loss, the computer just turned off.

                            After restoration of power, I would consistently get an error message from Time Machine saying that the task couldn't be completed, throwing a "92" error code. This is a mysterious error code that I couldn't find the explanation for. Finally after some file deletions, several days, and changing preferences for Time Machine, it stopped throwing errors and everything appeared to be fine.

                            But...

                            I found out that when the computer crashes, Time Machine gets all confused, and it takes a long, long time for it to sort out what needs to be backed up and what doesn't. That's why it took a long time for Time Machine to stop giving errors.

                            I suspect that Time Machine was writing to that invisible file, with it growing larger with every attempt Time Machine made to back up. Then, when I upgraded the OS to the current version, the "snapshot" was deleted, freeing up a lot of space.

                            Does that make sense?

                            taiwan_girlT Offline
                            taiwan_girlT Offline
                            taiwan_girl
                            wrote on last edited by
                            #18

                            @George-K Does to me, but I am not sure that that is your best endorsement! 5555

                            Somebody who actually knows something would be better to answer. LOL

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