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How to identify unaligned IO on LUNs?
https://kb.netapp.com/on-prem/ontap/da/SAN/SAN-KBs/How_to_identify_unaligned_IO_on_LUNs
The article provides information on I/O alignment, unaligned I/O, how to identify unaligned IO on LUNs, contributing factors to I/O alignment for LUNs and few additional considerations.

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