I'm in the process of "replacing" my mdadm raid5 array with a raidz2 array with ZFS on my Ubuntu 20.04 home server. But for some reason, after each reboot my zpool and datasets can't be detected or mounted.
Here are the command I used to create my pool :
zpool create epicpool raidz2 /dev/disk/by-id/ata-ST2000DM001-1ER164_Z4Z4MDDA /dev/disk/by-id/ata-ST2000DM006-2DM164_Z4Z8WEGZ /dev/disk/by-id/ata-ST2000DM008-2FR102_ZFL1MGYW /dev/disk/by-id/ata-ST2000DM008-2FR102_ZFL47RPN /dev/disk/by-id/ata-ST32000542AS_6XW11TZ8
zfs create epicpool/storage
zfs set mountpoint=/share/storage epicpool/storage
zfs set compression=lz4 epicpool
zfs set atime=off epicpool
So far, I don't see what I do wrong. If I list my ZFS data, my storage is there :
$ zpool list
NAME SIZE ALLOC FREE CKPOINT EXPANDSZ FRAG CAP DEDUP HEALTH ALTROOT
epicpool 9.09T 1.30M 9.09T - - 0% 0% 1.00x ONLINE -
$ sudo zfs list
NAME USED AVAIL REFER MOUNTPOINT
epicpool 916K 5.21T 170K /epicpool
epicpool/storage 170K 5.21T 170K /epicpool/storage
But each time, after I reboot, nothing is detected :
$ zfs list
no datasets available
$ zpool list
no pools available
And if I try to import my pool (as we do on a brand new system for as far as I know), it keep saying that there is no pool available :
$ sudo zpool import -a
no pools available to import
Note that I also tried with the -d parameter and specifing my vdev as I'v done in my create command.
What is really weird is, if I do the ZDB command, I see all the correc information from my "zpool create" before my reboot, and if I list my partitions with fdisk, I see that the zfs partition are still there :
$sudo fdisk -l
Disk /dev/sda: 1.84 TiB, 2000398934016 bytes, 3907029168 sectors
Disk model: ST2000DM001-1ER1
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: D387D033-B98F-A041-AE77-EA44D444D159
Device Start End Sectors Size Type
/dev/sda1 2048 3907012607 3907010560 1.8T Solaris /usr & Apple ZFS
/dev/sda9 3907012608 3907028991 16384 8M Solaris reserved 1
Disk /dev/sdb: 1.84 TiB, 2000398934016 bytes, 3907029168 sectors
Disk model: ST2000DM008-2FR1
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: BA2BA653-2B9A-864D-A1A8-08FA8804F7B6
Device Start End Sectors Size Type
/dev/sdb1 2048 3907012607 3907010560 1.8T Solaris /usr & Apple ZFS
/dev/sdb9 3907012608 3907028991 16384 8M Solaris reserved 1
Disk /dev/sdc: 1.84 TiB, 2000398934016 bytes, 3907029168 sectors
Disk model: ST2000DM006-2DM1
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: FBC930CA-BCFB-E848-8C67-9685AE3964E4
Device Start End Sectors Size Type
/dev/sdc1 2048 3907012607 3907010560 1.8T Solaris /usr & Apple ZFS
/dev/sdc9 3907012608 3907028991 16384 8M Solaris reserved 1
****[Another external drive]****
Disk /dev/sde: 1.84 TiB, 2000398934016 bytes, 3907029168 sectors
Disk model: ST2000DM008-2FR1
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: 028359F1-E2C9-8544-9A24-DA9D53614429
Device Start End Sectors Size Type
/dev/sde1 2048 3907012607 3907010560 1.8T Solaris /usr & Apple ZFS
/dev/sde9 3907012608 3907028991 16384 8M Solaris reserved 1
Disk /dev/sdg: 1.84 TiB, 2000398934016 bytes, 3907029168 sectors
Disk model: ST32000542AS
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: 42E11F66-8A66-704E-BE10-FB63FAB4ECE2
Device Start End Sectors Size Type
/dev/sdg1 2048 3907012607 3907010560 1.8T Solaris /usr & Apple ZFS
/dev/sdg9 3907012608 3907028991 16384 8M Solaris reserved 1
Since I'm a new ZFS user, I'm at a complete lost of what I should do next. Any help would be appreciated, I'm quite nervous to have all my data on a small external drive!
