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ianblenke/zil_and_arc.sh

Last active December 1, 2021 11:35
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FreeBSD ZFS: Putting a ZIL mirror and an L2ARC on only 2 SSD drives
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zil_and_arc.sh
#!/bin/bash
# Based on this blog post: https://clinta.github.io/FreeNAS-Multipurpose-SSD/
set -xe
ssd1=ada2
ssd2=ada3
pool=tank
gpart create -s gpt $ssd1
gpart create -s gpt $ssd2
gpart add -a 4k -b 128 -t freebsd-zfs -s 30G $ssd1
gpart add -a 4k -b 128 -t freebsd-zfs -s 30G $ssd2
gpart add -a 4k -t freebsd-zfs $ssd1
gpart add -a 4k -t freebsd-zfs $ssd2
zil1=$(gpart list $ssd1 | grep rawuuid | head -1 | cut -c13-)
arc1=$(gpart list $ssd1 | grep rawuuid | tail -1 | cut -c13-)
zil2=$(gpart list $ssd2 | grep rawuuid | head -1 | cut -c13-)
arc2=$(gpart list $ssd2 | grep rawuuid | tail -1 | cut -c13-)
zpool add $pool log mirror gptid/$zil1 gptid/$zil2
zpool add $pool cache gptid/$arc1
zpool add $pool cache gptid/$arc2
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