ZFS Partition IDs…

While doing some maintenance, I ran: sudo sfdisk -l /dev/sd[a-z] in attempt to list all partitions on my 6x 16TB of spinning rust i.e. /dev/sd*, which produced:

Disk /dev/sda: 14.55 TiB, 16000900661248 bytes, 31251759104 sectors
Disk model: <redacted>
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: <redacted>

Device     Start         End     Sectors  Size Type
/dev/sda1   2048 11721043967 11721041920  5.5T Linux filesystem


Disk /dev/sdb: 14.55 TiB, 16000900661248 bytes, 31251759104 sectors
Disk model: <redacted>
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: <redacted>

Device     Start         End     Sectors  Size Type
/dev/sdb1   2048 11721043967 11721041920  5.5T Linux filesystem


Disk /dev/sdc: 14.55 TiB, 16000900661248 bytes, 31251759104 sectors
Disk model: <redacted>
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: <redacted>

Device     Start         End     Sectors  Size Type
/dev/sdc1   2048 11721043967 11721041920  5.5T Linux filesystem


Disk /dev/sdd: 14.55 TiB, 16000900661248 bytes, 31251759104 sectors
Disk model: <redacted>
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: <redacted>

Device     Start         End     Sectors  Size Type
/dev/sdd1   2048 11721043967 11721041920  5.5T Linux filesystem


Disk /dev/sde: 14.55 TiB, 16000900661248 bytes, 31251759104 sectors
Disk model: <redacted>
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: <redacted>

Device     Start         End     Sectors  Size Type
/dev/sde1   2048 11721043967 11721041920  5.5T Linux filesystem


Disk /dev/sdf: 14.55 TiB, 16000900661248 bytes, 31251759104 sectors
Disk model: <redacted>
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: <redacted>

Device     Start         End     Sectors  Size Type
/dev/sdf1   2048 11721043967 11721041920  5.5T Solaris /usr & Apple ZFS

 

That was odd, considering all these partitions are ZFS type (i.e. blue highlights are correct, red highlights are incorrect).

Continue reading →