i would like to make a partitions on my hard drive consisting a bad sector. is there anyone who can recommend a graphical partitioner that displays the part which has the bad sectors. i want to make a partition for the bad sectors and remove it , so that it is not anymore accessible and the heads will only go to the part which has the good sectors.
segregating bad sectors
- Thread starter winluck7
- Start date
Your likely to have one or two 'holes' in your partition scheme this way. Any reason you just don't want the OS to detect the bad sectors and mark the areas as bad so it won't use them?
That's not how things work anymore. The hard drive handles this rather than software. The drive marks the bad sectors as bad by itself and does not use them anymore. There are spare areas set aside which are used instead. These spare areas are spaced throughout the drive to prevent affecting the performance.
As the previous posters said, this is handled automatically. You can force the drive to inventory all bad sectors and bypass them by performing a sector by sector test. Download the drive manufacturer's drive diagnostic program and perform a FULL (ADVANCED) diagnostic. The diagnostic will either correct the problem or fail the drive. If it fails the drive you'll need to replace it.
Not all bad sectors are physical defects, but keep in mind that if you have real bad sectors - physical damage of the platter caused by a head strike - the drive's days are numbered. In the old days you could suffer dozens of head crashes and just work around the bad sectors with no problems, but not with modern drives.
A head strike will cause debris (particles from the platter) to be released into what should be a particle-free environment. At the rotational speed and close head spacing of modern drives, some of this debris inevitably gets caught between the head and the platter and causes more damage. The process repeats, and repeats. You're essentially using sandpaper on the platters. Pretty soon the drive is worthless and it usually doesn't take long (days).
Backup your data now and if gets any worse replace the drive.
Now, in regards to partitioning for disaster recovery, I do promote the idea of using multiple partitions instead of one large partition. The reason is that a head crash can wipe out your Master File Table (MFT). If this happens you could lose everything on the drive.
By splitting your drive up into smaller partitions you can limit the damage done to the data. Worst case scenario is that a trashed MFT on a multi-partition drive will only lose the data in one partition.
I go into greater details of the benefits of multiple partitions here: http://penguinblog.com/partitioning.shtml
Hope this helps...
Not all bad sectors are physical defects, but keep in mind that if you have real bad sectors - physical damage of the platter caused by a head strike - the drive's days are numbered. In the old days you could suffer dozens of head crashes and just work around the bad sectors with no problems, but not with modern drives.
A head strike will cause debris (particles from the platter) to be released into what should be a particle-free environment. At the rotational speed and close head spacing of modern drives, some of this debris inevitably gets caught between the head and the platter and causes more damage. The process repeats, and repeats. You're essentially using sandpaper on the platters. Pretty soon the drive is worthless and it usually doesn't take long (days).
Backup your data now and if gets any worse replace the drive.
Now, in regards to partitioning for disaster recovery, I do promote the idea of using multiple partitions instead of one large partition. The reason is that a head crash can wipe out your Master File Table (MFT). If this happens you could lose everything on the drive.
By splitting your drive up into smaller partitions you can limit the damage done to the data. Worst case scenario is that a trashed MFT on a multi-partition drive will only lose the data in one partition.
I go into greater details of the benefits of multiple partitions here: http://penguinblog.com/partitioning.shtml
Hope this helps...
actually i experience this on older hard drives with bad sector, the OS detect the bad sectors and already mark them. but when i try to copy a file to the hard drive it was successful but you can't access the file although you can see the file name you can't even delete it. so im looking a graphical partitioner so that the heads will not go to the areas with bad sectors.
I'm using a socket 7 and 370 computers. i usually do the difficult way of partitioning the hard drive with regards to hard drive with small bad sectors, i do that, trial and error in DOS fdisk command.
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