[ovirt-users] Issues with ZFS volume creation

[Fabrice Bacchella]

Or try to create the vdev on the multipath devices, what does lsblk -s says ? It will show you the top level device to be used.

> Le 3 avr. 2018 à 10:53, Staniforth, Paul <P.Staniforth at leedsbeckett.ac.uk> a écrit :
> 
> Hello Tal,
>                  ZFS is probably detecting a partition table on the disks, you could delete the partition tables on /dev/sda,/dev/sdb  ... etc, or you could use the force option of ZFS create making sure they aren't mounted somewhere.
> 
> Regards,
>                Paul S.
> From: users-bounces at ovirt.org <users-bounces at ovirt.org> on behalf of Tal Bar-Or <tbaror at gmail.com>
> Sent: 25 March 2018 15:54
> To: users
> Subject: [ovirt-users] Issues with ZFS volume creation
>  
> 
> Hello All,
> I know this question is might be out of Ovirt scope, but I don't have anywhere else to ask for this issue (ZFS users mailing doesn't work), so I am trying my luck here anyway
> so the issues go as follows :
> 
> Installed ZFS on top of CentOs 7.4 with Ovirt 4.2 , on physical Dell R720 with 15 sas  10 k 1.2TB each attached to PERC H310 adapter, disks are configured to non-raid, all went OK, but when I am trying to create new zfs pool using the following command:
>  
> zpool create -m none -o ashift=12 zvol raidz2 sda sdb sdc sdd sde sdf sdg sdh sdi sdj sdk sdl sdm
> I get the following error below:
> /dev/sda is in use and contains a unknown filesystem.
> /dev/sdb is in use and contains a unknown filesystem.
> /dev/sdc is in use and contains a unknown filesystem.
> /dev/sdd is in use and contains a unknown filesystem.
> /dev/sde is in use and contains a unknown filesystem.
> /dev/sdf is in use and contains a unknown filesystem.
> /dev/sdg is in use and contains a unknown filesystem.
> /dev/sdh is in use and contains a unknown filesystem.
> /dev/sdi is in use and contains a unknown filesystem.
> /dev/sdj is in use and contains a unknown filesystem.
> /dev/sdk is in use and contains a unknown filesystem.
> /dev/sdl is in use and contains a unknown filesystem.
> /dev/sdm is in use and contains a unknown filesystem.
> 
> When typing command lsblk I get the following output below, all seems ok, any idea what could be wrong?
> Please advice
> Thanks
> 
> # lsblk
> NAME                MAJ:MIN RM  SIZE RO TYPE  MOUNTPOINT
> sda                   8:0    0  1.1T  0 disk
> └─35000cca07245c0ec 253:2    0  1.1T  0 mpath
> sdb                   8:16   0  1.1T  0 disk
> └─35000cca072463898 253:10   0  1.1T  0 mpath
> sdc                   8:32   0  1.1T  0 disk
> └─35000cca0724540e8 253:8    0  1.1T  0 mpath
> sdd                   8:48   0  1.1T  0 disk
> └─35000cca072451b68 253:7    0  1.1T  0 mpath
> sde                   8:64   0  1.1T  0 disk
> └─35000cca07245f578 253:3    0  1.1T  0 mpath
> sdf                   8:80   0  1.1T  0 disk
> └─35000cca07246c568 253:11   0  1.1T  0 mpath
> sdg                   8:96   0  1.1T  0 disk
> └─35000cca0724620c8 253:12   0  1.1T  0 mpath
> sdh                   8:112  0  1.1T  0 disk
> └─35000cca07245d2b8 253:13   0  1.1T  0 mpath
> sdi                   8:128  0  1.1T  0 disk
> └─35000cca07245f0e8 253:4    0  1.1T  0 mpath
> sdj                   8:144  0  1.1T  0 disk
> └─35000cca072418958 253:5    0  1.1T  0 mpath
> sdk                   8:160  0  1.1T  0 disk
> └─35000cca072429700 253:1    0  1.1T  0 mpath
> sdl                   8:176  0  1.1T  0 disk
> └─35000cca07245d848 253:9    0  1.1T  0 mpath
> sdm                   8:192  0  1.1T  0 disk
> └─35000cca0724625a8 253:0    0  1.1T  0 mpath
> sdn                   8:208  0  1.1T  0 disk
> └─35000cca07245f5ac 253:6    0  1.1T  0 mpath
> 
> 
> -- 
> Tal Bar-or
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