On Sep 27, 2007, at 12:04 PM, Wojciech Puchar wrote:
It's reasonable to start with something like a:
dd if=/dev/your_disk of=/dev/null bs=5120
...to at least try reading every sector on the drive as a basic
sanity check.
why so small blocks of 10 sectors?
i use bs=64k at least goes faster.
Agreed, but he asked for a stress-test-- arguably, hitting with a
size of 512 might be better for that purpose than anything faster. I
chose 5120 because many ATA devices seem to have a maximum request/
DMA-transfer size of 16 sectors, and 512 * 10 is convenient and fits
under that.
--
-Chuck
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