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Badblocks: Difference between revisions
→Usage
(→Usage) |
(→Usage) |
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ETA is approximately 1 day per 4 terabytes. | ETA is approximately 1 day per 4 terabytes. | ||
<pre> | <pre> | ||
badblocks -wsv -b 4096 /dev/sdg | badblocks -wsv -b 4096 -t 0x55 -o badblocks.txt /dev/sdg | ||
</pre> | </pre> | ||
* <code>-w</code> do a destructive write test | * <code>-w</code> do a destructive write test | ||
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* <code>-b ''num''</code> block size. Use 4096 typically. | * <code>-b ''num''</code> block size. Use 4096 typically. | ||
* <code>-p ''num''</code> do ''num'' iterations. Typically 1 is sufficient. | * <code>-p ''num''</code> do ''num'' iterations. Typically 1 is sufficient. | ||
* <code>-t ''test_pattern''</code> Test pattern. | * <code>-t ''test_pattern''</code> Test pattern. Can be random. E.g. 0x55 | ||
* <code>-o ''file''</code> output badblocks to a file | |||
To save the list of bad blocks, you need to run <code>e2fsck</code> or <code>mkfs.ext4</code>: | To save the list of bad blocks, you need to run <code>e2fsck</code> or <code>mkfs.ext4</code>: | ||