Strange consumption of free disk space - Storage

This is a discussion on Strange consumption of free disk space - Storage ; [I posted this yesterday elsewhere. Maybe someone of this group could kindly help me or refer me to the proper group.] Hello, If I power up my computer and do nothing, then I would expect that the free disk space ...

+ Reply to Thread
Results 1 to 14 of 14

Thread: Strange consumption of free disk space

  1. Strange consumption of free disk space

    [I posted this yesterday elsewhere. Maybe someone of this group
    could kindly help me or refer me to the proper group.]

    Hello,

    If I power up my computer and do nothing, then I would expect that
    the free disk space should remain constant, or essentially so (due
    to some log file lengthening). However, I found with estonishment
    that this is far from being true. As can be seen from figures in the
    attachment, in the 6 test runs I lost a total of some 18 MB free
    disk space through doing nothing! Could someone please explain
    how this could happen? Is this a common phenomenon? Most puzzling
    for me are the results of the first 3 test runs. Since the computer
    was disconnected from the internet, it can be entirely excluded
    that any downloads from the internet were done (e.g. for software
    updates) in the background without my being noticed.

    Regards,

    M. K. Shen

    -----------------------------------------------------------

    The 6 tests were done consecutively, each time with the computer
    first shut down und powered up anew. The first 3 tests were done
    with the computer disconnected from the internet, while the last
    3 with the computer connected to the internet. In all cases no
    browser was started. Absolutely nothing was done by me, excepting
    using the "dir" command to get the amount of free disk space in
    bytes. Each test lasts 30 minutes.


    Time Test 1 Test 2 Test 3

    0 226.668.072.960 226.667.782.144 226.661.388.288
    10 226.667.511.808 226.664.132.608 226.611.388.288
    20 226.667.495.424 226.664.128.512 226.660.995.072
    30 226.667.474.944 226.664.124.416 226.660.990.976


    Time Test 4 Test 5 Test 6

    0 226.658.750.464 226.651.840.704 226.650.222.592
    10 226.654.695.424 226.653.175.808 226.648.121.344
    20 226.653.626.368 226.653.175.808 226.648.121.344
    30 226.653.626.368 226.653.175.808 226.648.121.344


    I have an HP desktop with Windows XP. I run no particular
    applications (database, programs, etc.) and am using the computer
    only for Google, e-mail, internet radio and writing letters to
    be output to the printer as well as using CDs of language learning
    software. Norton is installed. As Browser I use the one from my
    internet provider, which is adapted from Internet Explorer, and
    further Mozilla Firefox. (There were not activated in the tests.)
    Else nothing runs or ever ran on my computer.

    Here are some more recent figures of my free disk space obtained
    today:

    226.636.234.752
    226.629.783.552
    226.589.392.869
    226.527.563.776

    Could it be, as a friend speculates, that some spyware, malware
    or such stuff gets onto my computer despite Norton? If so, what
    should I best do?

  2. Re: Strange consumption of free disk space

    Auto updates and buts would be suspect.


    "Mok-Kong Shen" wrote in message
    news:g9e5am$pr8$00$1@news.t-online.com...
    > [I posted this yesterday elsewhere. Maybe someone of this group
    > could kindly help me or refer me to the proper group.]
    >
    > Hello,
    >
    > If I power up my computer and do nothing, then I would expect that
    > the free disk space should remain constant, or essentially so (due
    > to some log file lengthening). However, I found with estonishment
    > that this is far from being true. As can be seen from figures in the
    > attachment, in the 6 test runs I lost a total of some 18 MB free
    > disk space through doing nothing! Could someone please explain
    > how this could happen? Is this a common phenomenon? Most puzzling
    > for me are the results of the first 3 test runs. Since the computer
    > was disconnected from the internet, it can be entirely excluded
    > that any downloads from the internet were done (e.g. for software updates)
    > in the background without my being noticed.
    >
    > Regards,
    >
    > M. K. Shen
    >
    > -----------------------------------------------------------
    >
    > The 6 tests were done consecutively, each time with the computer
    > first shut down und powered up anew. The first 3 tests were done
    > with the computer disconnected from the internet, while the last
    > 3 with the computer connected to the internet. In all cases no
    > browser was started. Absolutely nothing was done by me, excepting
    > using the "dir" command to get the amount of free disk space in
    > bytes. Each test lasts 30 minutes.
    >
    >
    > Time Test 1 Test 2 Test 3
    >
    > 0 226.668.072.960 226.667.782.144 226.661.388.288
    > 10 226.667.511.808 226.664.132.608 226.611.388.288
    > 20 226.667.495.424 226.664.128.512 226.660.995.072
    > 30 226.667.474.944 226.664.124.416 226.660.990.976
    >
    >
    > Time Test 4 Test 5 Test 6
    >
    > 0 226.658.750.464 226.651.840.704 226.650.222.592
    > 10 226.654.695.424 226.653.175.808 226.648.121.344
    > 20 226.653.626.368 226.653.175.808 226.648.121.344
    > 30 226.653.626.368 226.653.175.808 226.648.121.344
    >
    >
    > I have an HP desktop with Windows XP. I run no particular
    > applications (database, programs, etc.) and am using the computer
    > only for Google, e-mail, internet radio and writing letters to
    > be output to the printer as well as using CDs of language learning
    > software. Norton is installed. As Browser I use the one from my
    > internet provider, which is adapted from Internet Explorer, and
    > further Mozilla Firefox. (There were not activated in the tests.)
    > Else nothing runs or ever ran on my computer.
    >
    > Here are some more recent figures of my free disk space obtained
    > today:
    >
    > 226.636.234.752
    > 226.629.783.552
    > 226.589.392.869
    > 226.527.563.776
    >
    > Could it be, as a friend speculates, that some spyware, malware
    > or such stuff gets onto my computer despite Norton? If so, what
    > should I best do?




  3. Re: Strange consumption of free disk space

    John Fullbright wrote:
    > Auto updates and buts would be suspect.


    Auto updates couldn't be the cause. In my Tests 1-3 the computer
    was disconneted from the internet, the cable being pulled out, but
    nevertheless the phenomen toke place. (Excuse me for not knowing
    the term buts.)

    Mok-Kong

  4. Re: Strange consumption of free disk space

    If you have a Virus Scanner, which will run at boot, then it will probably
    log into a log file who grows and therefore consumes space.
    And... this is just an example, there are many services / applications which
    log into various log files which will grow...

    rgds,
    Edwin.

    "Mok-Kong Shen" wrote in message
    news:g9g2oi$tgm$01$1@news.t-online.com...
    > John Fullbright wrote:
    > > Auto updates and buts would be suspect.

    >
    > Auto updates couldn't be the cause. In my Tests 1-3 the computer
    > was disconneted from the internet, the cable being pulled out, but
    > nevertheless the phenomen toke place. (Excuse me for not knowing
    > the term buts.)
    >
    > Mok-Kong




  5. Re: Strange consumption of free disk space

    Bits is background intelligent transfer service.

    Lot's of technologies use BITS, but if you're not internet connected, that
    won't be it. Content indexing if you have it turned on could be the
    culprit. Other things could be virus scanning as Edwin states, or if you no
    not have a fixed size page file it could be growth of the page file.

    John


    "Mok-Kong Shen" wrote in message
    news:g9g2oi$tgm$01$1@news.t-online.com...
    > John Fullbright wrote:
    >> Auto updates and buts would be suspect.

    >
    > Auto updates couldn't be the cause. In my Tests 1-3 the computer
    > was disconneted from the internet, the cable being pulled out, but
    > nevertheless the phenomen toke place. (Excuse me for not knowing
    > the term buts.)
    >
    > Mok-Kong




  6. Re: Strange consumption of free disk space

    John Fullbright wrote:
    > Bits is background intelligent transfer service.
    >
    > Lot's of technologies use BITS, but if you're not internet connected, that
    > won't be it. Content indexing if you have it turned on could be the
    > culprit. Other things could be virus scanning as Edwin states, or if you no
    > not have a fixed size page file it could be growth of the page file.


    I can well understand that log files grow. However, the amount
    consumed couldn't in normal cases be so much as I got in my
    experiment. I work in these days very little with my computer,
    in order not to lose too much free disk space. Nevertheless
    I have lost quite an amount. Currently dir gives 226.465.562.624,
    which is a reduction of 215 MB with respect to the time of
    my first test. I can't imagine that there could be that much
    log information recorded in the period (rough estimate 6 hours)
    that my computer is powered on from the time of my first test
    to the current moment.


    Mok-Kong

  7. Re: Strange consumption of free disk space

    Mok-Kong Shen wrote:

    [snip]

    Following a suggestion I got elsewhere, I installed Spybot.
    It found over 60 problematic items, which were said to be Cookies
    (which I interpreted to mean not being spyware as such). After
    removing these, I was surprised to find that "dir"-command
    gave 228.194.070.528, which is even much bigger than the
    figure at the time of my first test reported (226.668.072.960).
    Of course, as layman I don't understand what has actually
    happened. But anyway, my original fear, that my free disk
    space would be fairly quickly exhausted, is (at least for
    the moment) gone.

    Mok-Kong

  8. Re: Strange consumption of free disk space

    Mok-Kong Shen wrote in news:g9e5am$pr8$00$1
    @news.t-online.com:

    > Could it be, as a friend speculates, that some spyware, malware
    > or such stuff gets onto my computer despite Norton? If so, what
    > should I best do?


    Google "Procmon", monitor just file I/O events and you should see what is
    writing out files and consuming disk space.

    Adam

  9. Re: Strange consumption of free disk space

    I would check your dr watson log. I have seen some of our logs get as large
    as 60 gb.

    "Adam Leinss" wrote:

    > Mok-Kong Shen wrote in news:g9e5am$pr8$00$1
    > @news.t-online.com:
    >
    > > Could it be, as a friend speculates, that some spyware, malware
    > > or such stuff gets onto my computer despite Norton? If so, what
    > > should I best do?

    >
    > Google "Procmon", monitor just file I/O events and you should see what is
    > writing out files and consuming disk space.
    >
    > Adam
    >


  10. Re: Strange consumption of free disk space

    Mok-Kong Shen write:
    [snip]

    Using the command "dir /a:-d /s", I obtained for the diverse
    subdirectories of c:\ the number of files, the sum of occupied
    spaces in the subdirectory and the current free disk space of
    the computer on two different days. I found that, excepting
    three subdirectories, there was no change at all of occupied
    spaces. (I have no access to c:\System Volume Information.)
    The results are as follows:

    C:\Dokumente und Einstellungen (German name)
    Time No. files Occupied space Free disk space
    20.9 21:55 7729 1.586.778.619 225.783.951.360
    28.9 00:40 7706 1.591.040.390 225.675.317.248

    c:\Programme
    Time No. files Occupied space Free disk space
    20.9 22:13 59697 4.204.447.920 225.783.889.920
    28.9 00:42 59697 4.197.722.646 225.675.313.152

    c:\WINDOWS
    Time No. files Occupied space Free disk space
    20.9 22:33 35592 5.921.921.432 225.783.889.920
    28.9 00:45 35662 5.931.471.974 225.675.313.152

    It is obvious that the reduction of free disk space cannot
    be explained by the increase of occupied spaces. Note
    that in C:\Programme the occupied space is now even smaller
    than before.

    Could someone please explain what's happening?

    Thanks.

    Mok-Kong

  11. Re: Strange consumption of free disk space

    Are you using Volume Shadow Copies ?



    "Mok-Kong Shen" wrote in message
    news:gbmfc2$rij$01$1@news.t-online.com...
    > Mok-Kong Shen write:
    > [snip]
    >
    > Using the command "dir /a:-d /s", I obtained for the diverse
    > subdirectories of c:\ the number of files, the sum of occupied
    > spaces in the subdirectory and the current free disk space of
    > the computer on two different days. I found that, excepting
    > three subdirectories, there was no change at all of occupied
    > spaces. (I have no access to c:\System Volume Information.)
    > The results are as follows:
    >
    > C:\Dokumente und Einstellungen (German name)
    > Time No. files Occupied space Free disk space
    > 20.9 21:55 7729 1.586.778.619 225.783.951.360
    > 28.9 00:40 7706 1.591.040.390 225.675.317.248
    >
    > c:\Programme
    > Time No. files Occupied space Free disk space
    > 20.9 22:13 59697 4.204.447.920 225.783.889.920
    > 28.9 00:42 59697 4.197.722.646 225.675.313.152
    >
    > c:\WINDOWS
    > Time No. files Occupied space Free disk space
    > 20.9 22:33 35592 5.921.921.432 225.783.889.920
    > 28.9 00:45 35662 5.931.471.974 225.675.313.152
    >
    > It is obvious that the reduction of free disk space cannot
    > be explained by the increase of occupied spaces. Note
    > that in C:\Programme the occupied space is now even smaller
    > than before.
    >
    > Could someone please explain what's happening?
    >
    > Thanks.
    >
    > Mok-Kong




  12. Re: Strange consumption of free disk space

    Edwin vMierlo [MVP] wrote:
    > Are you using Volume Shadow Copies ?


    Sorry, I know little about OS terms. On my PC runs the
    XP Media Center Edition 2005. Recently I received SP3.
    I have done nothing to change anything of OS.

    Mok-Kong

  13. Re: Strange consumption of free disk space

    have you done what Adam L suggested ?

    using a tool like ProcMon or FileMon to establish which processes are
    writing to the disk, then investigate each of those processes



    "Mok-Kong Shen" wrote in message
    news:gcf2tm$3hn$00$1@news.t-online.com...
    > Edwin vMierlo [MVP] wrote:
    > > Are you using Volume Shadow Copies ?

    >
    > Sorry, I know little about OS terms. On my PC runs the
    > XP Media Center Edition 2005. Recently I received SP3.
    > I have done nothing to change anything of OS.
    >
    > Mok-Kong




  14. Re: Strange consumption of free disk space

    Edwin vMierlo [MVP] schrieb:
    > have you done what Adam L suggested ?
    >
    > using a tool like ProcMon or FileMon to establish which processes are
    > writing to the disk, then investigate each of those processes


    Yes. From Filemon I see e.g. Firefox and Thunderbird very often
    write a lot to the subdirectory c:\Dokumente und Einstellungen.
    But, as reported, the increase of occupied spaces there (also
    taken together with the two other subdirectories where fluctuations
    occur) is "far" less than the total decrease of free disk spaces.
    What disturbs me is not so much the general decrease of free
    disk space as such but much more the existence of the rather large
    discrepancy. It seems that somewhere there is a "black hole".

    I find it hard to imagine indeed why Firefox and Thunderbird
    have to write to disk so often while e.g. I am currently
    composing this post and am hence effectively doing nothing with
    these software. I should appreciate informations in that
    respect too, if any.

    Thanks.

    Mok-Kong

+ Reply to Thread