computing:zfsreminders
Differences
This shows you the differences between two versions of the page.
| Both sides previous revisionPrevious revisionNext revision | Previous revision | ||
| computing:zfsreminders [2022/08/05 23:19] – oemb1905 | computing:zfsreminders [2024/04/21 23:12] (current) – oemb1905 | ||
|---|---|---|---|
| Line 1: | Line 1: | ||
| + | ------------------------------------------- | ||
| + | * **zfsreminders** | ||
| + | * **Jonathan Haack** | ||
| + | * **Haack' | ||
| + | * **webmaster@haacksnetworking.org** | ||
| + | |||
| + | ------------------------------------------- | ||
| + | |||
| + | // | ||
| + | |||
| + | ------------------------------------------- | ||
| + | |||
| Create a pool on a single drive and specify a mountpoint for it. Note: use id, not uuid. | Create a pool on a single drive and specify a mountpoint for it. Note: use id, not uuid. | ||
| Line 34: | Line 46: | ||
| zfs load-key pool/ | zfs load-key pool/ | ||
| zfs mount pool/ | zfs mount pool/ | ||
| + | | ||
| + | If you need to delete a dataset, do the following: | ||
| + | |||
| + | zfs destroy -r pool/ | ||
| | | ||
| To create snapshots, here is a reasonable template: | To create snapshots, here is a reasonable template: | ||
| Line 44: | Line 60: | ||
| zfs list -H -o name -t snapshot | xargs -n1 zfs destroy | zfs list -H -o name -t snapshot | xargs -n1 zfs destroy | ||
| | | ||
| - | To add a zfs cache hard drive to your pool, do the following: | + | To add a zfs cache or slog hard drive to your pool, do the following: |
| zpool add pool cache / | zpool add pool cache / | ||
| + | zpool add pool log / | ||
| To view current snapshots, do the following: | To view current snapshots, do the following: | ||
| Line 57: | Line 74: | ||
| zfs list -ro space | zfs list -ro space | ||
| | | ||
| - | To replace a drive, power down the host. Physically | + | To replace a failed |
| - | sudo zpool replace pool 2277585469358930581 | + | sudo zpool replace pool < |
| + | sudo zpool replace pool 3347762980558930904 | ||
| + | To check the health, statistics, and basic specs of your pool: | ||
| + | |||
| + | zpool status -v | ||
| + | zpool iostat -v | ||
| + | zpool list -v | ||
| + | | ||
| + | Also, to see whether cache volume is necessary, run and look at cache hit/miss ratio: | ||
| + | |||
| + | arc_summary | ||
| + | |||
| + | Change location of the keys for your encrypted datasets: | ||
| + | |||
| + | sudo zfs set keylocation=file:/// | ||
| + | | ||
| + | Send and receive entire pool to new pool | ||
| + | |||
| + | zfs snapshot -r pool1@latestsnap | ||
| + | zfs send -R pool1@latestsnap | zfs receive -F pool2 | ||
| + | | ||
| + | Arc information | ||
| + | | ||
| + | arcstat | ||
| + | arc_summary -d | less | ||
| + | nano / | ||
| + | <# 8GB example - 8*(2^30) = below> | ||
| + | <# | ||
| + | <# Set Max ARC size => 2GB == 2147483648 Bytes> | ||
| + | <options zfs zfs_arc_max=2147483648> | ||
| + | <# Set Min ARC size => 1GB == 1073741824> | ||
| + | <options zfs zfs_arc_min=1073741824> | ||
| + | cat / | ||
| + | cat / | ||
| + | More examples ... | ||
| - | --- //[[jonathan@haacksnetworking.org|oemb1905]] | + | --- //[[webmaster@haacksnetworking.org|oemb1905]] |
computing/zfsreminders.1659741597.txt.gz · Last modified: 2022/08/05 23:19 by oemb1905
Page Tools
Except where otherwise noted, content on this wiki is licensed under the following license: GNU Free Documentation License 1.3
