How do I test to see if all writes to my hard drive are aligned to its 4k sectors?
Fresh3 days ago
Mar 15, 20261308 viewsConfidence Score0%
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Problem
I'm using Linux with 4 hard drives that use 4k sectors. There are several layers between my filesystem and the raw devices: Disks > Linux Raid 5 > dm-crypt > LVM. Every resource I have found has explained how to set up each layer to ensure that writes on top of that layer will be aligned to the 4k …
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Fix for: How do I test to see if all writes to my hard drive are aligned to its 4k sectors?
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Asked myself the same question some time ago and simply did the following: Wrote with the shell a couple of times a rather unusual string to a file (something like "WackaWacka") Then simply searched with a hex dump (used od) the actual content of th…
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