h2. How to Create a Mirrored ZFS Storage Pool
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The OpenSolaris installer creates a ZFS storage pool, which is a pool of devices that all the file systems in that pool share.
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... If you have an additional disk that is the same size as the disk in the ZFS storage pool that was created during the OpenSolaris installation, you might consider creating a two-disk mirrored ZFS storage pool. A two-disk mirrored pool provides better data protection against a disk failure. |
*Tip* \- For general recommendations about ZFS storage pools, go to http://www.solarisinternals.com/wiki/index.php/ZFS_Best_Practices_Guide. |
h5. Steps
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# {include:root_step}
# *Identify your existing storage pool devices.* |
... For example:
{code}
# zpool status
pool: rpool
state: ONLINE
scrub: none requested
config:
NAME STATE READ WRITE CKSUM
rpool ONLINE 0 0 0
c4d0s0 ONLINE 0 0 0
errors: No known data errors
{code}
# *Attach a second disk as a mirror to the existing storage pool device.*
For example:
{code}
# zpool attach rpool c4d0s0 c4d1s0
{code}
# *Verify that the device is attached.*
For example:
{code}
# zpool status
pool: rpool
state: ONLINE
scrub: none requested
config:
NAME STATE READ WRITE CKSUM
rpool ONLINE 0 0 0
mirror ONLINE 0 0 0
c4d0s0 ONLINE 0 0 0
c4d1s0 ONLINE 0 0 0
errors: No known data errors
{code}
# *Apply the boot blocks to the newly attached disk.*
For example:
{code}
# installgrub /boot/grub/stage1 /boot/grub/stage2 /dev/rdsk/c4d1s0
{code}
# *Confirm that you can boot from the newly attached disk by selecting this disk from the BIOS level.*
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