[root@localhost yum.repos.d]# blkid /dev/sdb
[root@localhost yum.repos.d]# fdisk -l /dev/sdb

Disk /dev/sdb: 800.2 GB, 800166076416 bytes, 1562824368 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes

[root@localhost yum.repos.d]# zpool create chunk1 /dev/sdb
/dev/sdb is in use and contains a unknown filesystem.
[root@localhost yum.repos.d]# wipefs /dev/sdb
[root@localhost yum.repos.d]# zpool create chunk1 /dev/sdb
/dev/sdb is in use and contains a unknown filesystem.