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When using Ubuntu the hard drive makes parking noise (windows 7 is silent). When I use the check disk utility the reallocated sector count tells me 1920 with 48 bad sectors. The 48 bad sectors hasn't changed for a long time but the reallocation sector count changes every week.

Is ubuntu killing my hard drive? Is there anything I can do, apart from buying a new one as they are expensive?

**disk info**
Disk /dev/sda: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders, total 976773168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0x0006c6a0

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *        2048      206847      102400    7  HPFS/NTFS/exFAT
/dev/sda2          206848   557341426   278567289+   7  HPFS/NTFS/exFAT
/dev/sda3       557344766   976768233   209711734    f  W95 Ext'd (LBA)
Partition 3 does not start on physical sector boundary.
/dev/sda5       557344768   908028993   175342113    7  HPFS/NTFS/exFAT
/dev/sda6       908029952   976768233    34369141   83  Linux
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Parking noise could indicate disk going into low power state, or it might be something else. Check the state of drive using sudo smartctl -a /dev/sda. In particular the Load_Cycle_Count raw value will be of interest. Does it keep increasing regularly? If so then we might be able to use hdparm to stop the park-unpark of the drive (for a laptop that might mean higher battery consumption). –  sumwale Jul 19 at 21:14

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