If it's a NAS, you need to make very sure that is supports SQL's IO requirements. SQL requires write order preservation and that there be no sector rewrites.
IO contention won't cause corruption, so the fact that it's a single route shouldn't be a problem. Something in that IO stack however is not behaving correctly if you have repeated corruption.
Oh, and SQL Server and the DC on the same machine is a bad setup.
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: Discussions on DB performance with occasional diversions into recoverability
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