Berkeley CSUA MOTD:Entry 36674
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2025/07/11 [General] UID:1000 Activity:popular
7/11    

2005/3/13-15 [Computer/HW/Drives] UID:36674 Activity:moderate
3/13    HDD question: ran badblocks (hda1) once: found 1 badblock.
        ran it again (hda), found 0 badblocks. The HDD is still
        in warranty. If it were yours, would you replace it?
        \_ To all potential repliers:  Please note the question is primarily
           about "how accurate is badblocks if it reports 1 badblock on one
           run and 0 on the second".  For the obvious example of Windows
           stalling on just one sector or reporting any bad sectors at all, I
           would schedule that disk to be replaced as soon as possible.
        \_ is badblocks a linux tool?  I would find a SMART tool such as
           smartctl on linux and check the disk status.  if it has run low
           of block-remapping entries, replace it yesterday.
           \_ Thanks. Yes, I used badblocks (-w) on the KNOPPIX CD.
              I just ran smartctl in KNOPPIX, and it doesn't appear
              to have any block-remapping entries that I can find.
              I ran:  smartctl -a /dev/hda and noticed that it says
              "Warning! SMART Selective Self-Test Log Structure error:
               invalid SMART checksum. SMART Selective self-test log data
               structire revision number 1." How serious is this error.
               BTW, I've ordered a replacement disk from dell. Hope it
               was the right thing todo.
              \_ sorry it is called Reallocated_Sector_Ct in the
                 output from -a.  I think it is in percent and starts
                 at 100 for a new, healthy disk.  i'm not familiar
                 with log checksum errors.
                 \_ It looks like that starts at 0 and goes to 100.
                    The WORST and VALUE columns are 100.
                    This RAW_VALUE is 0. That test looks okay.
                    This SMART stuff is pretty nifty.
                    \_ hmm, on mine it starts at 100 and goes to zero
                       when all reallocation entries are in use.  if
                       yours is 100, I have no idea why you have block
                       errors.  cable/controller problems?  the disk
                       should self-correct until it runs out of map
                       entries.
2025/07/11 [General] UID:1000 Activity:popular
7/11    

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