Volume disappeared after crash and reboot

Y

yena

Renowned Member
Nov 18, 2011
385
6
83
Hello,
after a crash and reboot i can't see my "storage" zfs volume under /dev/zvol
and at boot promt i see:
a start job is running for udev wait for complete device initialization ...

ls -la /dev/zvol
total 0
drwxr-xr-x 3 root root 60 Apr 20 08:54 .
drwxr-xr-x 21 root root 5280 Apr 20 08:56 ..
drwxr-xr-x 2 root root 60 Apr 20 08:54 rpool

I can see it but hard disk naming has changed:

pool: storage
state: ONLINE
scan: scrub canceled on Thu Apr 19 23:46:01 2018
config:
NAME STATE READ WRITE CKSUM
storage ONLINE 0 0 0
mirror-0 ONLINE 0 0 0
wwn-0x5000cca26bc8a788 ONLINE 0 0 0
wwn-0x5000cca26bc90800 ONLINE 0 0 0

WAS sdc / sdd
-------------------------------------------------------------------------------------------------------

zfs list
NAME USED AVAIL REFER MOUNTPOINT
rpool 10.4G 205G 104K /rpool
rpool/ROOT 1.85G 205G 96K /rpool/ROOT
rpool/ROOT/pve-1 1.85G 205G 1.85G /
rpool/data 96K 205G 96K /rpool/data
rpool/swap 8.50G 209G 4.44G -
storage 8.04T 759G 96K /storage
storage/subvol-100-disk-1 8.04T 759G 6.29T /storage/subvol-100-disk-1

-------------------------------------------------------------------------------------------------------

zpool import -c /etc/zfs/zpool.cache -N storage
cannot import 'storage': a pool with that name already exists
use the form 'zpool import <pool | id> <newpool>' to give it a new name

-------------------------------------------------------------------------------------------------------
pveversion -V
proxmox-ve: 5.1-42 (running kernel: 4.15.15-1-pve)
pve-manager: 5.1-51 (running version: 5.1-51/96be5354)
pve-kernel-4.13: 5.1-44
pve-kernel-4.15.15-1-pve: 4.15.15-6
pve-kernel-4.13.16-2-pve: 4.13.16-47
pve-kernel-4.13.13-5-pve: 4.13.13-38
pve-kernel-4.13.13-2-pve: 4.13.13-33
corosync: 2.4.2-pve4
criu: 2.11.1-1~bpo90
glusterfs-client: 3.8.8-1
ksm-control-daemon: 1.2-2
libjs-extjs: 6.0.1-2
libpve-access-control: 5.0-8
libpve-apiclient-perl: 2.0-4
libpve-common-perl: 5.0-30
libpve-guest-common-perl: 2.0-14
libpve-http-server-perl: 2.0-8
libpve-storage-perl: 5.0-18
libqb0: 1.0.1-1
lvm2: 2.02.168-pve6
lxc-pve: 3.0.0-2
lxcfs: 3.0.0-1
novnc-pve: 0.6-4
proxmox-widget-toolkit: 1.0-15
pve-cluster: 5.0-25
pve-container: 2.0-21
pve-docs: 5.1-17
pve-firewall: 3.0-8
pve-firmware: 2.0-4
pve-ha-manager: 2.0-5
pve-i18n: 1.0-4
pve-libspice-server1: 0.12.8-3
pve-qemu-kvm: 2.11.1-5
pve-xtermjs: 1.0-2
pve-zsync: 1.6-15
qemu-server: 5.0-25
smartmontools: 6.5+svn4324-1
spiceterm: 3.0-5
vncterm: 1.5-3
zfsutils-linux: 0.7.7-pve1~bpo9
------------------------------------------------------------------

Hav i to delete /etc/zfs/zpool.cache ? .. some ideas ?

THANSK!
 
Last edited:
I have finded the cause, we have insered 7 new Hard disk, hot swap,
after the crash, the server reboot and re-map every HD!! so every entry like sdc/sdd/sde are changed !

zpool status -v
pool: rpool
state: ONLINE
scan: scrub repaired 0B in 0h1m with 0 errors on Sun Apr 8 00:25:18 2018
config:

NAME STATE READ WRITE CKSUM
rpool ONLINE 0 0 0
mirror-0 ONLINE 0 0 0
sda2 ONLINE 0 0 0
sdb2 ONLINE 0 0 0

errors: No known data errors

pool: storage
state: ONLINE
scan: scrub canceled on Thu Apr 19 23:46:01 2018
config:

NAME STATE READ WRITE CKSUM
storage ONLINE 0 0 0
mirror-0 ONLINE 0 0 0
wwn-0x5000cca26bc8a788 ONLINE 0 0 0
wwn-0x5000cca26bc90800 ONLINE 0 0 0

errors: No known data errors

Infact i see wwn-0x5000cca26bc8a788 and wwn-0x5000cca26bc90800 not sdc sdd !

if i export and than import the vol storage i can access the content but i still can see the volume on /dev/zvol

Why proxmox re-map hd device ?
Can i re assign the old names ?

------------------------------------------------------------------------------------------------------------------
blkid
/dev/sda2: LABEL="rpool" UUID="14643568233080075857" UUID_SUB="14927214585550116699" TYPE="zfs_member" PARTLABEL="zfs" PARTUUID="f752672e-d6ee-432c-b106-76026e0b1838"
/dev/sdb2: LABEL="rpool" UUID="14643568233080075857" UUID_SUB="10388335358908211430" TYPE="zfs_member" PARTLABEL="zfs" PARTUUID="d1b49aa4-abfe-4099-ad87-07c504030f6e"
/dev/sde1: LABEL="storage" UUID="11726730913690512857" UUID_SUB="13614383425813560384" TYPE="zfs_member" PARTLABEL="zfs-163a8f544ac91017" PARTUUID="8175d2c8-665d-0d44-b8ff-efc4dc8a07ec"
/dev/sdd1: LABEL="storage" UUID="11726730913690512857" UUID_SUB="11101969648437288177" TYPE="zfs_member" PARTLABEL="zfs-d756de1bae55e0e3" PARTUUID="c4a17d43-130b-654f-8110-9c0eff68534a"
/dev/sdg1: LABEL="backup" UUID="4854663689251531744" UUID_SUB="16969322726204881097" TYPE="zfs_member" PARTLABEL="zfs-79edf2f0937a3210" PARTUUID="765a9187-1d49-794e-8d1a-8802b60c8f02"
/dev/sdm1: UUID="5cc6e0d0-6ff9-4603-93cf-ae623be3f7ab" TYPE="ext4" PTTYPE="dos" PARTUUID="67005421-01"
/dev/sdm2: UUID="fbbb87db-9e0e-4d50-8948-d3dee691f766" TYPE="ext4" PARTUUID="67005421-02"
/dev/sdn1: UUID="5cc6e0d0-6ff9-4603-93cf-ae623be3f7ab" TYPE="ext4" PTTYPE="dos" PARTUUID="67005421-01"
/dev/sdn2: UUID="fbbb87db-9e0e-4d50-8948-d3dee691f766" TYPE="ext4" PARTUUID="67005421-02"
/dev/sdo1: UUID="5cc6e0d0-6ff9-4603-93cf-ae623be3f7ab" TYPE="ext4" PTTYPE="dos" PARTUUID="67005421-01"
/dev/sdo2: UUID="fbbb87db-9e0e-4d50-8948-d3dee691f766" TYPE="ext4" PARTUUID="67005421-02"
/dev/sdp1: UUID="5cc6e0d0-6ff9-4603-93cf-ae623be3f7ab" TYPE="ext4" PTTYPE="dos" PARTUUID="67005421-01"
/dev/sdp2: UUID="fbbb87db-9e0e-4d50-8948-d3dee691f766" TYPE="ext4" PARTUUID="67005421-02"
/dev/zd0: UUID="0778213e-cd23-4494-93e5-be2ad2fc2ced" TYPE="swap"
/dev/sda1: PARTUUID="de5be1a5-35e2-4600-b5cf-117cb6fd9d63"
/dev/sda9: PARTUUID="8da984ce-7008-4a3b-bac2-f0e7c1f0fd3a"
/dev/sdb1: PARTUUID="6adeff74-b7a4-40c2-87f3-a14c9b227305"
/dev/sdb9: PARTUUID="63e28043-a127-41eb-bf89-38341f4f0c15"
/dev/sde9: PARTUUID="24818d87-f86b-4d47-a98d-11c5118b35ee"
/dev/sdd9: PARTUUID="5504f7e8-1187-214c-adce-6ef596754abf"
/dev/sdg9: PARTUUID="a37a268c-247e-1848-9183-e93a17e5c297"
-------------------------------------------------------------------------------------------------------------------------

ls -la /sys/devices/virtual/block/
total 0
drwxr-xr-x 11 root root 0 Apr 20 11:37 .
drwxr-xr-x 21 root root 0 Apr 20 09:37 ..
drwxr-xr-x 9 root root 0 Apr 20 09:37 loop0
drwxr-xr-x 9 root root 0 Apr 20 09:37 loop1
drwxr-xr-x 9 root root 0 Apr 20 09:37 loop2
drwxr-xr-x 9 root root 0 Apr 20 09:37 loop3
drwxr-xr-x 9 root root 0 Apr 20 09:37 loop4
drwxr-xr-x 9 root root 0 Apr 20 09:37 loop5
drwxr-xr-x 9 root root 0 Apr 20 09:37 loop6
drwxr-xr-x 9 root root 0 Apr 20 09:37 loop7
drwxr-xr-x 8 root root 0 Apr 20 09:38 zd0

-----------------------------------------------------------------------------------------------------------------------

Thanks!!
 
Last edited:
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