Differences

This shows you the differences between two versions of the page.

--- linux:zfs [2024/05/01 06:27] – [Linux ZFS] admin
+++ linux:zfs [2025/02/05 12:49] (current) – [ZFS - notification] admin
@@ Line 1: / Line 1: @@
 ====== Linux ZFS ======
+https://lepkov.ru/zfs-cheatsheet/ backup https://habr.com/ru/companies/macloud/articles/547056/ \\
 <https://denisbondar.github.io/post/zfs-manual-rus/> - manual <https://xakep.ru/2014/07/08/zfs-at-home/#toc07.> old one\\
 <code BASH>
@@ Line 6: / Line 7: @@
 /dev/zvol/
 ├── rpool
-│   ├── data
+    ├── data
-│   │   ├── vm-100-disk-1 -> ../../../zd0
+    │   ├── vm-100-disk-1 -> ../../../zd0
-│   │   └── vm-100-disk-1-part1 -> ../../../zd0p1
+    │   └── vm-100-disk-1-part1 -> ../../../zd0p1
-│   └── swap -> ../../zd16
+    └── swap -> ../../zd16
-└── tank
-    ├── vm-100-disk-1 -> ../../zd48
+zfs get all rpool/data/subvol-111-disk-1  | grep com
-    ├── vm-100-disk-1-part1 -> ../../zd48p1
+zfs set compression=off rpool/data/subvol-111-disk-1
-    ├── vm-100-disk-1-part2 -> ../../zd48p2
-    ├── vm-100-disk-2 -> ../../zd64
+zfs get compressratio
-    ├── vm-100-disk-2-part1 -> ../../zd64p1
+NAME                          PROPERTY       VALUE  SOURCE
-    ├── vm-101-disk-1 -> ../../zd32
+rpool                         compressratio  1.07x  -
-    └── vm-101-disk-1-part1 -> ../../zd32p1
+rpool/ROOT                    compressratio  1.78x  -
+rpool/ROOT/pve-1              compressratio  1.78x  -
+rpool/data                    compressratio  1.06x  -
+rpool/data/subvol-110-disk-0  compressratio  1.77x  -
 # start trim operation
@@ Line 58: / Line 63: @@
 </code>
 ++++
+===== ZFS - notification =====
+++++ telegram notification zfs|
+<code BASH>
+ # https://github.com/leovp/telegram_notifications
+nano /etc/zfs/zed.d/zed-telegram.sh
+#!/bin/bash
+TELEGRAM_BOT_TOKEN="righttoken" # put your token here
+TELEGRAM_CHAT_ID="chatid" # your chat_id for sending notification
+subject="$1"
+details="$2"
+MESSAGE="🚨 ZFS Alert on $(hostname) 🚨
+Event: $subject
+Details:
+$details"
+curl -s -X POST "https://api.telegram.org/bot$TELEGRAM_BOT_TOKEN/sendMessage" \
+     -d "chat_id=$TELEGRAM_CHAT_ID" \
+     -d "text=$MESSAGE"
+chmod +x /etc/zfs/zed.d/zed-telegram.sh
+# zed-functions.sh Modified zed_notify function
+zed_notify()
+{
+    zed_notify_email "${subject}" "${pathname}"; rv=$?
+    [ "${rv}" -eq 0 ] && num_success=$((num_success + 1))
+    [ "${rv}" -eq 1 ] && num_failure=$((num_failure + 1))
+    # Execute external Telegram script if it exists
+    if [ -x "/etc/zfs/zed.d/zed-telegram.sh" ]; then
+        /etc/zfs/zed.d/zed-telegram.sh "${subject}" "$(cat "${pathname}")"; rv=$?
+        [ "${rv}" -eq 0 ] && num_success=$((num_success + 1))
+        [ "${rv}" -eq 1 ] && num_failure=$((num_failure + 1))
+    fi
+}
+</code>
+++++
+===== ZFS backup =====
+<code bash>
+# create file  20 gb
+dd if=/dev/zero of=/mnt/sdb3/zpool_test bs=1G count=20
+# create pool on file
+zpool create test /mnt/sdb3/zpool_test
+# send data replication to local  system
+ zfs send -vR rpool@snap1 | zfs receive  test -F
+# send data of zpool to file
+zfs send -vR rpool@snap1 > /mnt/pve/backup/zfs-pve-rpool-20240624.backup
+# recieve
+zfs receive rpool < /mnt/pve/backup/zfs-pve-rpool-20240624.backup
+zpool attach rpool nvme-512GB_SSD_NJM358R015419P70GX-part3 ata-SPCC_Solid_State_Disk_AA230918S351201018-part3
+zpool remove rpool /mnt/sdb3/zpool_mirror1_1
+</code>
+===== ZFS monitoring =====
+https://blog.roberthallam.org/2022/09/monitoring-zfs-with-influxdb-grafana-publishing-and-reflection-part-5/ \\
+https://github.com/richardelling/zpool_influxdb \\