calmh/smartos-zpool-ashift-12
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zpool with hardcoded ashift=12 on create, compiled for SmartOS
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Filename Latest commit message Latest commit date
Jakob Borg 4452cb1bd7 Initial
2014-03-01 20:27:13 +01:00
README.md Initial 2014-03-01 20:27:13 +01:00
zpool Initial 2014-03-01 20:27:13 +01:00

README.md

zpool with ashift=12

This is the regular zpool binary from SmartOS joyent_20140207T053435Z, compiled so that zpool create always uses ashift=12 for all vdevs. This can be used to create such pools with 512 byte sector devices for the purpose of enabling future replacement with 4096 byte sector devices.

Note that there are caveats around efficient disk usage when using RAIDZ variants with ashift=12 pools. Mirroring is nice.

This can also be used to create pools with devices that lie about their sector size, but seriously just throw them away instead.