What are the differences between the direct, dsync, and unbuffered settings for the Veritas File System mount options mincache and convosync, and how do those options affect I/O?

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Article ID: 100017777

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For further information, please refer to the Storage Foundation Administrator's Guide for the particular version running, e.g. for 7.4.2 on Linux, Chapter 7 - Creating and mounting VxFS file systems

https://sort.veritas.com/DocPortal/pdf/79798461-141543598-1

Issue/Introduction

What are the differences between the direct, dsync, and unbuffered settings for the Veritas File System mount options mincache and convosync, and how do those options affect I/O?