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mathwhiz1212 2025-04-12 04:51:33 -06:00
parent 4826cfbbd3
commit 7237abaa5e
1 changed files with 3 additions and 4 deletions
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7
Proxmox/reduce-ssd-writes.sh
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@ -1,4 +1,4 @@
#!/usr/bin/env bash
#!/usr/bin/env bash
# This has not been tested, use at your own risk.
@ -12,14 +12,14 @@ echo "Enabling a variety of settings to reduce writes on SSDs. This may cause da
sleep 10
echo “options zfs zfs_txg_timeout=30” > /etc/modprobe.d/zfs.conf # Set txg_timeout to 30 seconds. This introduces a higher risk of data loss.
echo 'options zfs zfs_txg_timeout=30' > /etc/modprobe.d/zfs.conf # Set txg_timeout to 30 seconds. This introduces a higher risk of data loss.
zfs set atime=off rpool # Turn off atime.
zfs set logbias=throughput rpool # Change logbias to throughput.
zfs set compression=lz4 rpool # Set compression to lz4 instead of the older LZJB.
zfs set recordsize=16K rpool # This works better with lots of little writes, and seems to be recommended for VMs on SSDs unless your workload is many large writes.
# ZFS seems to recommend smaller recordsizes for VMs if you're running on SSDs in general depending on the workload:
# https://openzfs.github.io/openzfs-docs/Performance%20and%20Tuning/Workload%20Tuning.html#virtual-machines
# https://openzfs.github.io/openzfs-docs/Performance%20and%20Tuning/Workload%20Tuning.html#virtual-machines
# https://openzfs.github.io/openzfs-docs/Performance%20and%20Tuning/Workload%20Tuning.html#zvol-volblocksize
# 16K: https://serverfault.com/a/1120640
@ -28,4 +28,3 @@ zpool get all | grep ashift
echo "And trim should be enabled:"
systemctl status fstrim.timer