How to grow zfs on FreeBSD running inside VMWare
Live ZFS resizing inside VMWare should be possible, but there are several steps:
First you should resize your virtual disk in VMWare configuration. Recomendation is all virtual disks to be similar size for best performance in VMWare.
Then check what is disk configuration using:
# gpart show
=> 34 629145526 da0 GPT (300G)
34 1024 1 freebsd-boot (512K)
1058 4194304 2 freebsd-swap (2.0G)
4195362 624950198 3 freebsd-zfs (298G)
=> 34 629145526 da1 GPT (300G)
34 1048576 1 freebsd-boot (512M)
1048610 4194304 2 freebsd-swap (2.0G)
5242914 623902646 3 freebsd-zfs (297G)
=> 34 629145526 da2 GPT (300G)
34 1048576 1 freebsd-boot (512M)
1048610 4194304 2 freebsd-swap (2.0G)
5242914 623902646 3 freebsd-zfs (297G)
# zpool status -v
pool: zroot
state: ONLINE
scan: scrub in progress since Mon Apr 4 17:16:38 2022
458G scanned at 670M/s, 319G issued at 466M/s, 458G total
0B repaired, 69.54% done, 00:05:06 to go
config:
NAME STATE READ WRITE CKSUM
zroot ONLINE 0 0 0
gpt/zfs0 ONLINE 0 0 0
gpt/zfs1 ONLINE 0 0 0
gpt/zfs2 ONLINE 0 0 0
VMware should notify guest OS that resize happened. You should be able to see that with `diskinfo -v /dev/daX` command. If it didn't happen - you'll probably need to execute at this point following commands:
camcontrol reprobe da0 ;\
camcontrol reprobe da1 ;\
camcontrol reprobe da2
Next it is good to made:
gpart recover da0 ; \
gpart recover da1 ; \
gpart recover da2
The new space will appear visible after partition 3 on each disk.
# gpart show
=> 34 629145526 da0 GPT (300G)
34 1024 1 freebsd-boot (512K)
1058 4194304 2 freebsd-swap (2.0G)
4195362 331348925 3 freebsd-zfs (158G)
335544287 293601273 - free - (140G)
=> 34 629145526 da1 GPT (300G)
34 1048576 1 freebsd-boot (512M)
1048610 4194304 2 freebsd-swap (2.0G)
5242914 330301373 3 freebsd-zfs (157G)
335544287 293601273 - free - (140G)
=> 34 629145526 da2 GPT (300G)
34 1048576 1 freebsd-boot (512M)
1048610 4194304 2 freebsd-swap (2.0G)
5242914 351272893 3 freebsd-zfs (167G)
356515807 272629753 - free - (130G)Next you should resize your partition with `gpart resize ...`. Hope it is the past one, otherwise this problem may have no easy solution. Please note that additional free space appears after partition 3. It should be doable for mounted filesystem. In my example commands are:
gpart resize -i 3 da0 ; \
gpart resize -i 3 da1 ; \
gpart resize -i 3 da2Next you should make ZFS to resize with `zpool online -e ...`. So in the example you must execute following commands:
zpool online -e zroot gpt/zfs0 ; \
zpool online -e zroot gpt/zfs1 ; \
zpool online -e zroot gpt/zfs2It’s good to execute `zpool scrub zroot`.