Today I was setting up some drives for testing.
I did this manually:
root@r730-04:~ # gpart create -s gpt da2
da2 created
root@r730-04:~ # gpart add -t efi -s 260M -a 4k da2
da2p1 added
root@r730-04:~ # gpart add -t freebsd-swap -s 8G -a 4k da2
da2p2 added
root@r730-04:~ # gpart add -t freebsd-zfs -a 4k da2
da2p3 added
root@r730-04:~ # gpart show da2
=> 40 62533216 da2 GPT (30G)
40 532480 1 efi (260M)
532520 16777216 2 freebsd-swap (8.0G)
17309736 45223520 3 freebsd-zfs (22G)
Now let’s duplicate that over here:
root@r730-04:~ # gpart backup da2 | gpart restore da3
=> 40 62533216 da2 GPT (30G)
40 532480 1 efi (260M)
532520 16777216 2 freebsd-swap (8.0G)
17309736 45223520 3 freebsd-zfs (22G)
=> 34 62533229 da3 GPT (30G)
34 6 - free - (3.0K)
40 532480 1 efi (260M)
532520 16777216 2 freebsd-swap (8.0G)
17309736 45223520 3 freebsd-zfs (22G)
62533256 7 - free - (3.5K)
root@r730-04:~ #
That’s not the same. However, it is similar to the other drives in this host:
root@r730-04:~ # gpart show da0
=> 34 1953525101 da0 GPT (932G)
34 6 - free - (3.0K)
40 532480 1 efi (260M)
532520 2008 - free - (1.0M)
534528 16777216 2 freebsd-swap (8.0G)
17311744 1936213384 3 freebsd-zfs (923G)
1953525128 7 - free - (3.5K)
Granted, that’s a different type of drive.
da2 and da3 look like this:
Nov 20 14:13:40 r730-04 kernel: da2 at mrsas0 bus 1 scbus1 target 7 lun 0 Nov 20 14:13:40 r730-04 kernel: da2:Fixed Direct Access SPC-4 SCSI device Nov 20 14:13:40 r730-04 kernel: da2: Serial Number 134106402147 Nov 20 14:13:40 r730-04 kernel: da2: 150.000MB/s transfers Nov 20 14:13:40 r730-04 kernel: da2: 30533MB (62533296 512 byte sectors) Nov 20 14:13:40 r730-04 kernel: da3 at mrsas0 bus 1 scbus1 target 6 lun 0 Nov 20 14:13:40 r730-04 kernel: da3: Fixed Direct Access SPC-4 SCSI device Nov 20 14:13:40 r730-04 kernel: da3: Serial Number 134106400102 Nov 20 14:13:40 r730-04 kernel: da3: 150.000MB/s transfers Nov 20 14:13:40 r730-04 kernel: da3: 30533MB (62533296 512 byte sectors)
They are the same model, etc.
Going the other way
Let’s destroy da2 and use da3 as a model:
root@r730-04:~ # gpart destroy -F da2
da2 destroyed
root@r730-04:~ # gpart backup da3 | gpart restore da2
root@r730-04:~ # gpart show da2 da3
=> 34 62533229 da2 GPT (30G)
34 6 - free - (3.0K)
40 532480 1 efi (260M)
532520 16777216 2 freebsd-swap (8.0G)
17309736 45223520 3 freebsd-zfs (22G)
62533256 7 - free - (3.5K)
=> 34 62533229 da3 GPT (30G)
34 6 - free - (3.0K)
40 532480 1 efi (260M)
532520 16777216 2 freebsd-swap (8.0G)
17309736 45223520 3 freebsd-zfs (22G)
62533256 7 - free - (3.5K)
root@r730-04:~ #
What gives here?
