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Thread: copy and tar problem

  1. #11
    albumns NNTP User

    Re: copy and tar problem


    Honey, I don't tar or untar files all the time in my computer. Of course
    I can edit posts.

    Here is the output of the command:

    /dev/sda:
    Timing buffered disk reads: 304 MB in 3.00 seconds = 101.28 MB/sec

    /dev/sda:
    Timing buffered disk reads: 250 MB in 3.00 seconds = 83.32 MB/sec

    /dev/sda:
    Timing buffered disk reads: 306 MB in 3.01 seconds = 101.80 MB/sec

    /dev/sda:
    Timing buffered disk reads: 306 MB in 3.01 seconds = 101.81 MB/sec

    /dev/sda:
    Timing buffered disk reads: 242 MB in 3.00 seconds = 80.63 MB/sec


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  2. #12
    friedl jan NNTP User

    Re: copy and tar problem


    Hi,
    i red all replies and have some idea ;-)

    Are you using tar operation on removable or on physical disk? With file
    system are you using?

    Do you anytime check the value "%wa = waiting operation" in the top
    during tar or coping? If is bigger then "%id" there is possible mistake
    in the disk partitioning.
    I had these problem with 4096-Byte Sector Hard Drives, and it sound
    very similar. ;-) Witch OS create the partitions? If windows, that can
    be problem. ;-)


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  3. #13
    albumns NNTP User

    Re: copy and tar problem


    friedl_jan;2139335 Wrote:
    > Hi,
    > i red all replies and have some idea ;-)
    >
    > Are you using tar operation on removable or on physical disk? With file
    > system are you using?
    >
    > Do you anytime check the value "%wa = waiting operation" in the top
    > during tar or coping? If is bigger then "%id" there is possible mistake
    > in the disk partitioning.
    > I had these problem with 4096-Byte Sector Hard Drives, and it sound
    > very similar. ;-) Witch OS create the partitions? If windows, that can
    > be problem. ;-)


    Thank you very much for kind reply. I do the tar operation in physical
    disk and I use ext3 which is the same with removable disk. someone
    suggest me to use this command to check something, but I don't know
    what's that:

    sudo /sbin/hdparm -i /dev/sda
    /dev/sda:

    Model=ST9500420AS, FwRev=D005SDM1, SerialNo=5VJ5J20R
    Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs RotSpdTol>.5% }
    RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=4
    BuffType=unknown, BuffSize=16384kB, MaxMultSect=16, MultSect=16
    CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=976773168
    IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
    PIO modes: pio0 pio1 pio2 pio3 pio4
    DMA modes: mdma0 mdma1 mdma2
    UDMA modes: udma0 udma1 udma2 udma3 udma4 udma5 *udma6
    AdvancedPM=yes: unknown setting WriteCache=enabled
    Drive conforms to: unknown: ATA/ATAPI-4,5,6,7

    * signifies the current active mode


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  4. #14
    albumns NNTP User

    Re: copy and tar problem


    here is the output for extracting files:

    /dev/sda:
    Timing buffered disk reads: 124 MB in 3.07 seconds = 40.43 MB/sec


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  5. #15
    albumns NNTP User

    Re: copy and tar problem


    here is the out put for command ''for i in {1..5};do hdparm -t
    /dev/sda;done" when extracting something

    /dev/sda:
    Timing buffered disk reads: 130 MB in 3.02 seconds = 43.01 MB/sec

    /dev/sda:
    Timing buffered disk reads: 98 MB in 3.04 seconds = 32.28 MB/sec

    /dev/sda:
    Timing buffered disk reads: 64 MB in 3.03 seconds = 21.09 MB/sec

    /dev/sda:
    Timing buffered disk reads: 106 MB in 3.05 seconds = 34.71 MB/sec

    /dev/sda:
    Timing buffered disk reads: 62 MB in 3.00 seconds = 20.67 MB/sec


    --
    albumns
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