Why is ONTAP setting Optimal Transfer Length to 0x80? Last updated Save as PDF Share Share Tweet Share Views:5Visibility:PublicVotes:0Category:ontap-9Specialty:PerfLast Updated: Applies to ONTAP 9LUNs via SCSIWindows server 2022Windows server 2025 Answer This is the optimal transfer length where we do not incur additional delay in processing a command Additional Information IO size throttle on workload from Windows Server 2022, 2025 - NetApp Knowledge BaseCan Optimal Transfer Length be modified from the default after presenting LUN to OS? - NetApp Knowledge BaseCan the Optimal Transfer Length be set during LUN creation? - NetApp Knowledge Base