Date: Fri, 28 Aug 2020 19:10:31 +0300 From: Mamontov Roman <mr.xanto@gmail.com> To: freebsd-stable@freebsd.org Subject: How prevent GEOM providers to use adaX labels? Message-ID: <558957699.20200828191031@gmail.com>
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Hello.
I have two disk with next partitions:
#gpart show
=> 40 11721045088 ada0 GPT (5.5T)
40 1024 1 freebsd-boot (512K)
1064 16777216 2 freebsd-swap (8.0G)
16778280 11704266848 3 freebsd-zfs (5.5T)
=> 40 11721045088 ada1 GPT (5.5T)
40 1024 1 freebsd-boot (512K)
1064 16777216 2 freebsd-swap (8.0G)
16778280 11704266848 3 freebsd-zfs (5.5T)
Then these partitions are combined on GEOM and ZFS mirrors:
#gmirror status
Name Status Components
mirror/swap COMPLETE ada0p2 (ACTIVE)
ada1p2 (ACTIVE)
#zpool status
pool: zroot
state: ONLINE
status: Some supported features are not enabled on the pool. The pool can
still be used, but some features are unavailable.
action: Enable all features using 'zpool upgrade'. Once this is done,
the pool may no longer be accessible by software that does not support
the features. See zpool-features(7) for details.
scan: resilvered 841G in 0 days 01:26:32 with 0 errors on Sat Jan 11 18:41:40 2020
config:
NAME STATE READ WRITE CKSUM
zroot ONLINE 0 0 0
mirror-0 ONLINE 0 0 0
ada0p3 ONLINE 0 0 0
ada1p3 ONLINE 0 0 0
errors: No known data errors
I try to change using adaX labels to diskid labels on both mirrors:
first I disabled load gmirror via boot/loader.conf and etc/fstab, then
i boot from live-cd and import/export zfs pool:
...
#zpool import -d /dev/diskid -o altroot=/tmp/zroot zroot
#zpool export
#reboot
After reboot to normal mode I see, that zpool change their adaX labels
to diskid labels:
#zpool status
pool: zroot
state: ONLINE
status: Some supported features are not enabled on the pool. The pool can
still be used, but some features are unavailable.
action: Enable all features using 'zpool upgrade'. Once this is done,
the pool may no longer be accessible by software that does not support
the features. See zpool-features(7) for details.
scan: resilvered 841G in 0 days 01:26:32 with 0 errors on Sat Jan 11 18:41:40 2020
config:
NAME STATE READ WRITE CKSUM
zroot ONLINE 0 0 0
mirror-0 ONLINE 0 0 0
diskid/DISK-SERIAL1p3 ONLINE 0 0 0
diskid/DISK-SERIAL2p3 ONLINE 0 0 0
errors: No known data errors
Then I've destroying gmirror and re-created it with diskid labels:
#gmirror destroy swap
#gmirror label -v -b round-robin swap diskid/DISK-SERIAL1p2
#gmirror insert swap diskid/DISK-SERIAL2p2
#gmirror status
Name Status Components
mirror/swap COMPLETE diskid/DISK-SERIAL1p2 (ACTIVE)
diskid/DISK-SERIAL2p2 (ACTIVE)
But after I've re-enabled gmirror in boot/loader.conf and /etc/fstab
and rebooted, I've see adaX labels on both mirrors:
#gmirror status
Name Status Components
mirror/swap COMPLETE ada0p2 (ACTIVE)
ada1p2 (ACTIVE)
#zpool status
pool: zroot
state: ONLINE
status: Some supported features are not enabled on the pool. The pool can
still be used, but some features are unavailable.
action: Enable all features using 'zpool upgrade'. Once this is done,
the pool may no longer be accessible by software that does not support
the features. See zpool-features(7) for details.
scan: resilvered 841G in 0 days 01:26:32 with 0 errors on Sat Jan 11 18:41:40 2020
config:
NAME STATE READ WRITE CKSUM
zroot ONLINE 0 0 0
mirror-0 ONLINE 0 0 0
ada0p3 ONLINE 0 0 0
ada1p3 ONLINE 0 0 0
errors: No known data errors
It look's like gmirror loaded before zfs and use search gmirror on adaX
first instead diskid labels.
Is there a way to prevent gmirror use adaX labels?
#uname -rv
12.1-STABLE FreeBSD 12.1-STABLE r361496 GENERIC
#sysctl kern.geom.label
kern.geom.label.disk_ident.enable: 1
kern.geom.label.gptid.enable: 1
kern.geom.label.gpt.enable: 1
kern.geom.label.ufs.enable: 1
kern.geom.label.ufsid.enable: 1
kern.geom.label.reiserfs.enable: 1
kern.geom.label.ntfs.enable: 1
kern.geom.label.msdosfs.enable: 1
kern.geom.label.iso9660.enable: 1
kern.geom.label.flashmap.enable: 1
kern.geom.label.ext2fs.enable: 1
kern.geom.label.debug: 0
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