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--- zfs_root_cache [2020/12/07 12:36] – memeruiz
+++ zfs_root_cache [2021/02/01 05:55] (current) – external edit 127.0.0.1
@@ Line 130: / Line 130: @@
 ==== Create a ZFS pool for main big data! ====
+  * option 1: Stripping
   sudo zpool create tardis  /dev/sdb4 /dev/sde4 /dev/sdf4
+  * option 2: raidz1 (with 3 new disks in raidz1 configuration of 2xdisk space)
+  sudo zpool create tardis raidz1 /dev/sdb4 /dev/sde4 /dev/sdf4
+  * option 3: raidz1 but degraded. (without one disk at the beginning) Solution: Use a sparse file as one of the starting disks [10].
+  truncate -s 8T tardisfake.img (Use the same exact size of the real disk partition)
+  sudo zpool create tardis raidz1 /dev/sde4 /dev/sdf4 /home/memeruiz/tardisfake.img
+  sudo zpool offline tardisnew /home/memeruiz/tardisfake.img
+  * Add log and cache devices:
   sudo zpool add tardis log /dev/nvme0n1p1
   sudo zpool add tardis cache /dev/nvme0n1p2
@@ Line 138: / Line 153: @@
   sudo zfs create -o encryption=on -o keyformat=passphrase tardis/data
+  * Create compressed subvolume
+  sudo zfs create tardis/data/compressed
+  sudo zfs set compression=on tardis/data/compressed
   * Avoid data to be mounted automatically with zfs:
@@ Line 212: / Line 233: @@
   mkfile 100m file1
   zpool create geekpool /file1
+==== Create a ZFS raidz1 en degrated mode ====
+  * Create a sparse file with the same size of your harddrives. Then remove it before putting files to it.
+[[https://www.reddit.com/r/zfs/comments/8enkt8/can_i_create_a_new_raidz_in_degraded_mode/]]
@@ Line 239: / Line 267: @@
 [[https://www.delphix.com/blog/delphix-engineering/openzfs-code-walk-metaslabs-and-space-maps]]
+[10] [[https://www.mail-archive.com/zfs-discuss@opensolaris.org/msg22993.html]]
+[[https://unix.stackexchange.com/questions/322352/create-raid-z2-in-degraded-state-possible]]