Also, to show that ashift was set to 16 instead of 12.
zdb | grep ashift
ashift: 16
ashift: 16
ashift: 16
ashift: 16
ashift: 16
ashift: 16
ashift: 16
ashift: 16
ashift: 16
ashift: 16
ashift: 16
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https://bugs.launchpad.net/bugs/2009262
Title:
ZFS create ignores ashift
Status in zfs-linux package in Ubuntu:
New
Bug description:
Hi,
I've ran into an issue trying to create a ZFS pool with Ubuntu 22.04.
In my case it seems that the ZFS command ignores the ashift and
because the drives are reporting an insane physical sector size of
256KB, and ZFS goes for the maximum ashift of 64KB sector size despite
me specifying the 4KB sector size.
It appears the upstream OpenZFS project has already fixed these issues. They
just need to be backported to Ubuntu.
https://github.com/openzfs/zfs/commit/37f6845c6f86b1d04593e55d94318326006f4b5d
My command:
zpool create \
-o ashift=12 \
-o autotrim=on \
-o autoexpand=on \
-o autoreplace=on \
-O acltype=posixacl -O xattr=sa -O dnodesize=auto \
-O compression=zstd-3 \
-O normalization=formD \
-O recordsize=32k \
-O relatime=on \
pg \
mirror nvme0n1 nvme1n1 mirror nvme2n1 nvme3n1 mirror nvme4n1 nvme5n1
mirror nvme6n1 nvme7n1 mirror nvme8n1 nvme9n1 \
mirror nvme10n1 nvme11n1 mirror nvme12n1 nvme13n1 mirror nvme14n1
nvme15n1 mirror nvme16n1 nvme17n1 mirror nvme18n1 nvme19n1 \
mirror nvme20n1 nvme21n1 \
spare nvme22n1 nvme23n1
The resulting zpool status output:
zpool status
pool: pg
state: ONLINE
status: One or more devices are configured to use a non-native block size.
Expect reduced performance.
action: Replace affected devices with devices that support the
configured block size, or migrate data to a properly configured
pool.
config:
NAME STATE READ WRITE CKSUM
pg ONLINE 0 0 0
mirror-0 ONLINE 0 0 0
nvme0n1 ONLINE 0 0 0 block size: 65536B
configured, 262144B native
nvme1n1 ONLINE 0 0 0 block size: 65536B
configured, 262144B native
mirror-1 ONLINE 0 0 0
nvme2n1 ONLINE 0 0 0 block size: 65536B
configured, 262144B native
nvme3n1 ONLINE 0 0 0 block size: 65536B
configured, 262144B native
mirror-2 ONLINE 0 0 0
nvme4n1 ONLINE 0 0 0 block size: 65536B
configured, 262144B native
nvme5n1 ONLINE 0 0 0 block size: 65536B
configured, 262144B native
mirror-3 ONLINE 0 0 0
nvme6n1 ONLINE 0 0 0 block size: 65536B
configured, 262144B native
nvme7n1 ONLINE 0 0 0 block size: 65536B
configured, 262144B native
mirror-4 ONLINE 0 0 0
nvme8n1 ONLINE 0 0 0 block size: 65536B
configured, 262144B native
nvme9n1 ONLINE 0 0 0 block size: 65536B
configured, 262144B native
mirror-5 ONLINE 0 0 0
nvme10n1 ONLINE 0 0 0 block size: 65536B
configured, 262144B native
nvme11n1 ONLINE 0 0 0 block size: 65536B
configured, 262144B native
mirror-6 ONLINE 0 0 0
nvme12n1 ONLINE 0 0 0 block size: 65536B
configured, 262144B native
nvme13n1 ONLINE 0 0 0 block size: 65536B
configured, 262144B native
mirror-7 ONLINE 0 0 0
nvme14n1 ONLINE 0 0 0 block size: 65536B
configured, 262144B native
nvme15n1 ONLINE 0 0 0 block size: 65536B
configured, 262144B native
mirror-8 ONLINE 0 0 0
nvme16n1 ONLINE 0 0 0 block size: 65536B
configured, 262144B native
nvme17n1 ONLINE 0 0 0 block size: 65536B
configured, 262144B native
mirror-9 ONLINE 0 0 0
nvme18n1 ONLINE 0 0 0 block size: 65536B
configured, 262144B native
nvme19n1 ONLINE 0 0 0 block size: 65536B
configured, 262144B native
mirror-10 ONLINE 0 0 0
nvme20n1 ONLINE 0 0 0 block size: 65536B
configured, 262144B native
nvme21n1 ONLINE 0 0 0 block size: 65536B
configured, 262144B native
spares
nvme22n1 AVAIL
nvme23n1 AVAIL
errors: No known data errors
lsb_release -rd
Description: Ubuntu 22.04.2 LTS
Release: 22.04
apt-cache policy zfsutils-linux
zfsutils-linux:
Installed: 2.1.5-1ubuntu6~22.04.1
Candidate: 2.1.5-1ubuntu6~22.04.1
Version table:
*** 2.1.5-1ubuntu6~22.04.1 500
500 http://us.archive.ubuntu.com/ubuntu jammy-updates/main amd64
Packages
100 /var/lib/dpkg/status
2.1.4-0ubuntu0.1 500
500 http://security.ubuntu.com/ubuntu jammy-security/main amd64
Packages
2.1.2-1ubuntu3 500
500 http://us.archive.ubuntu.com/ubuntu jammy/main amd64 Packages
ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: zfsutils-linux 2.1.5-1ubuntu6~22.04.1
ProcVersionSignature: Ubuntu 5.15.0-67.74-generic 5.15.85
Uname: Linux 5.15.0-67-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.11-0ubuntu82.3
Architecture: amd64
CasperMD5CheckResult: unknown
Date: Sat Mar 4 12:10:21 2023
ProcEnviron:
SHELL=/bin/bash
LANG=en_US.UTF-8
TERM=xterm
XDG_RUNTIME_DIR=<set>
PATH=(custom, no user)
SourcePackage: zfs-linux
UpgradeStatus: Upgraded to jammy on 2023-03-02 (1 days ago)
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