Date: Wed, 16 Sep 2020 11:02:51 +0200 From: xpetrl <xpetrl@beepc.ch> To: freebsd-questions@freebsd.org Subject: move zfs geli encrypt mirror to unencrypted Message-ID: <66e2f2da-af22-766a-cc7a-78c29735e39f@beepc.ch>
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Hello,
We have a server with 4 disks, 2 zpool are zfs mirror:
- base system unencrypted, partitions (da*p2)
- data storage, geli encrypted, partitions (da*p4)
gpart show
=> 40 23437770672 da0 GPT (11T)
40 2008 - free - (1.0M)
2048 1024 1 freebsd-boot (512K)
3072 1024 - free - (512K)
4096 352321536 2 freebsd-zfs (168G)
352325632 4194304 3 freebsd-swap (2.0G)
356519936 23068672000 4 freebsd-zfs (11T)
23425191936 12578776 - free - (6.0G)
=> 40 23437770672 da1 GPT (11T)
40 2008 - free - (1.0M)
2048 1024 1 freebsd-boot (512K)
3072 1024 - free - (512K)
4096 352321536 2 freebsd-zfs (168G)
352325632 4194304 3 freebsd-swap (2.0G)
356519936 23068672000 4 freebsd-zfs (11T)
23425191936 12578776 - free - (6.0G)
(the same output is for the next 2 disks, da2 and da3)
zpool status
pool: encrypt
state: ONLINE
scan: scrub repaired 0 in 0 days 04:02:26 with 0 errors on Fri Sep 4
18:08:21 2020
config:
NAME STATE READ WRITE CKSUM
encrypt ONLINE 0 0 0
mirror-0 ONLINE 0 0 0
da0p4.eli ONLINE 0 0 0
da1p4.eli ONLINE 0 0 0
da2p4.eli ONLINE 0 0 0
da3p4.eli ONLINE 0 0 0
errors: No known data errors
pool: zroot
state: ONLINE
scan: scrub repaired 0 in 0 days 00:06:21 with 0 errors on Fri Sep 4
14:12:09 2020
config:
NAME STATE READ WRITE CKSUM
zroot ONLINE 0 0 0
mirror-0 ONLINE 0 0 0
da0p2 ONLINE 0 0 0
da1p2 ONLINE 0 0 0
da2p2 ONLINE 0 0 0
da3p2 ONLINE 0 0 0
We now want to "move" the data storage (encrypt) to unencrypted partition.
What I have in mind is:
- scrub the encrypted pool
- detach one "encrypt" pool
- (detach from geli?)
- zfs snapshot
- zfs send and restore on the new unencrypted partition
- create a new zfs mirror with the new "unencrypted" pool
--> from second to 4th partition:
- detach a second "encrypt"
- attach to "unencrypted" pool and resilver
I don't really know how to deal with the datasets.
Can you give me some directions?
Thanks.
xpetrl
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