Why run badblocks 4 times with 4 different patterns?

Spearfoot / disk-burnin-and-testing

Shell script for burn-in and testing of new or re-purposed drives

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Why run badblocks 4 times with 4 different patterns? #25

Open rpgdev opened 1 year ago

rpgdev commented 1 year ago

I'm curious: why the badblocks test is performed 4 times with 4 different patterns? Is there an option of running a single pattern and if so, what would be the best pattern to use even it's not as rigorous?