Date: Mon, 8 Sep 2014 22:20:11 -0700 (PDT) From: "James D. Parra" <jamesp@musicreports.com> To: freebsd-questions@freebsd.org Subject: creating a raid1 with single system drive Message-ID: <405098918.20787549.1410240011151.JavaMail.root@musicreports.com> In-Reply-To: <2076734718.20787409.1410237009712.JavaMail.root@musicreports.com>
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Hello,
Installed FreeBSD on a single disk with ZFS with the zpool status showing;
# zpool status
pool: tank0
state: ONLINE
scan: none requested
config:
NAME STATE READ WRITE CKSUM
tank0 ONLINE 0 0 0
ada0s1d ONLINE 0 0 0
I wish to add an identical disk to create a raid1 array. A list of the drives shows;
ll /dev/ad*
crw-r----- 1 root operator 0, 108 Sep 8 19:21 /dev/ada0
crw-r----- 1 root operator 0, 110 Sep 8 19:21 /dev/ada0s1
crw-r----- 1 root operator 0, 115 Sep 8 19:21 /dev/ada0s1a
crw-r----- 1 root operator 0, 117 Sep 8 19:21 /dev/ada0s1b
crw-r----- 1 root operator 0, 119 Sep 8 19:21 /dev/ada0s1d
crw-r----- 1 root operator 0, 112 Sep 8 19:21 /dev/ada1
crw-r----- 1 root operator 0, 121 Sep 8 19:21 /dev/ada1s1
crw-r----- 1 root operator 0, 126 Sep 8 19:21 /dev/ada1s1a
crw-r----- 1 root operator 0, 128 Sep 8 19:21 /dev/ada1s1b
crw-r----- 1 root operator 0, 130 Sep 8 19:21 /dev/ada1s1d
crw-r----- 1 root operator 0, 132 Sep 8 19:21 /dev/ada1s1e
I installed the OS on the second disk as well so the partitions would be the same. However, something doesn't appear correct.
NAME STATE READ WRITE CKSUM
tank0 ONLINE 0 0 0
mirror-0 ONLINE 0 0 0
ada0s1d ONLINE 0 0 0
ada1s1e ONLINE 0 0 0 (resilvering)
# gpart show
=> 63 1953525105 ada0 MBR (931G)
63 1953 - free - (976k)
2016 1953523152 1 freebsd (931G)
=> 0 1953523152 ada0s1 BSD (931G)
0 2097152 1 freebsd-ufs (1.0G)
2097152 809500672 2 freebsd-swap (386G)
811597824 1141925328 4 freebsd-zfs (544G)
=> 63 1953525105 ada1 MBR (931G)
63 1953 - free - (976k)
2016 1953523152 1 freebsd (931G)
=> 0 1953523152 ada1s1 BSD (931G)
0 4096000 1 freebsd-ufs (2G)
4096000 4096000 2 freebsd-swap (2G)
8192000 4194304 4 freebsd-ufs (2.0G)
12386304 1941136848 5 freebsd-ufs (925G)
Although, the disks are identical, the installation partitioned them differently.
What is the best way to create a zfs raid1 for the system drive by adding the second drive after the install?
Thank you,
James
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