SOLVED Does sync=always also mean sequential drive writes?

ee21

Dabbler
Joined
Nov 2, 2020
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33
Title says it all mostly. I understand the concept of what sync=always means in terms of data in flight and why I would want that enabled on a pool hosting iSCSI targets which contain VM OS disks... However I am still pretty ignorant of how exactly ZFS works, and as such was curious if this also might mean that writes are committed to disk sequentially more so than otherwise...

I ask because I am looking at some enterprise QLC SSDs, which as expected, have a somewhat concerning endurance rating when it comes to random writes in particular:
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Chris Moore

Hall of Famer
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May 2, 2015
Messages
10,080
The option for sync writes has nothing to do with writing to the drive sequentially. Not even related at all.
 
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