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Resize NVMe sector size on snap-02 #1139

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Firefishy opened this issue Aug 8, 2024 · 0 comments

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Firefishy commented Aug 8, 2024 •

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The NVMe disks in snap-02 are using 512 sectors instead of 4096 byte sectors. The sector size should likely be changed if boosts performance.

LBA Format  0 : Metadata Size: 0   bytes - Data Size: 512 bytes - Relative Performance: 0 Best (in use)
LBA Format  1 : Metadata Size: 0   bytes - Data Size: 4096 bytes - Relative Performance: 0 Best

Changing the disk sector size formats (deletes contents) the disk, the sector size needs to be carefully coordinated with mdadm.

Outline steps:

Confirm array idle via /proc/mdstats
mdadm --fail
mdadm --remove
nvme format --lbaf=1
mdadm --add

(repeat disk by disk across all 9 disks)

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Resize NVMe sector size on snap-01 #1140

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