I have several machines with software RAID (both RAID1 and RAID5 configurations), with fairly modern kernels. I want to test the RAID before anything bad happens to the machines for real. What methods do you use to test software RAID on your servers? How do you verify that the kernel will detect device failures and deal with them properly? I present some ideas below, but want to hear what other people do for verification/peace of mind.
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Tags: raid