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In Solaris, Is it possible to Convert 2-way mirror (RAID1) of the root rpool to a 2x2 RAID 10 zpool?

edited Oct 10, 2019 10:59AM in Oracle Solaris System Administration (MOSC) 2 commentsAnswered

When I attempt to run "zpool add rpool mirror <vdev1> <vdev2>" I get the following error message:

# zpool add rpool mirror c0t5000CCA025156690d0s0 c0t5000CCA0546E4344d0s0

cannot add to 'rpool': root pool can not have multiple vdevs or separate logs

This system was originally configured with a 4-way mirror (RAID1) and with the intent to convert the disk configuration to a RAID10 for, hopefully, better disk read/write performance (I/O). I already started by removing two of the disks from the initial "rpool" using "zpool detach rpool <dev>" until I was left with only a 2-way mirror for my root rpool.

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