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--- zfs_root_cache [2020/12/09 09:00] – [Create a ZFS pool for main big data!] memeruiz
+++ zfs_root_cache [2020/12/09 09:44] – memeruiz
@@ Line 135: / Line 135: @@
   sudo zpool create tardis  /dev/sdb4 /dev/sde4 /dev/sdf4
-  * option 2: raidz1
+  * 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:
@@ Line 147: / 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 255: / 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]]