
On Sunday 30 January 2005 10:01, Pieter Hulshoff wrote:
On Sunday 30 January 2005 16:53, Randall R Schulz wrote:
Modern disk drives have internal bad-block remapping. As manufactured, there is a reserve of sectors available to use when the computer requests a block known to be bad (based on an record of bad blocks maintained by the drive itself). The initial bad-block remapping is done during manufacture (after burn-in, I think). Each manufacturer has to set a standard for the number or percentage of blocks that can be bad and the disk still shipped. (Very few high-capacity drives are literally defect-free.) The list of mapped blocks can be added to during ordinary use when an in-use block becomes unable to accurately record data.
Is there any way one can check for such bad blocks since as you say the badblocks program won't catch them? As I wrote: smartctl didn't report any problems either. The way you describe it, such errors might/should be a part of smart?
On the CD supplied from Maxtor, which came with my drives, there was an option on one of the menus to create a diskette with diagnostic tools. The same diag tool is included in the ultimate boot cd (http://ultimatebootcd.com). Sunny
Regards,
Pieter Hulshoff
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