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--- zfs:add_a_mirror_to_an_existing_zfs_drive [2020/06/15 21:52] – peter
+++ zfs:add_a_mirror_to_an_existing_zfs_drive [2021/10/13 22:27] (current) – removed peter
@@ Line 1: / Line 1: @@
-====== ZFS - Add a Mirror to an Existing ZFS Drive ======
-Convert the most basic ZFS pool, a system with a single disk, to a Mirror or Stripe.
-Current Setup:
-  * We have a single disk attached to our system, **/dev/da1**
-  * This disk is used as a simple zfs pool, **tank**
-  * You bought another disk and want to mirror the pool to the new disk, **/dev/da2**
-----
-===== Ensure the disk names are correct =====
-Make sure you’ve got the disk names correct.
-Use **dmesg** to see the system messages, to determine which disk is which.
-<WRAP alert>
-**ALERT:**  This can be dangerous if you use the wrong disk, as it will destroy all data on the selected disk.
-</WRAP>
-----
-===== Prepare Your Drive =====
-Delete any existing partitions if needed.
-<code bash>
-sudo gpart destroy -F /dev/da2
-</code>
-Format the drive as gpt:
-<code bash>
-sudo gpart create -s gpt /dev/da2
-</code>
-Create a zfs partition:
-<code bash>
-sudo gpart add -t freebsd-zfs /dev/da2
-</code>
-This new partition is **/dev/da2p1**, and will nbe added to the existing partition next.