Expanding a Solaris RPOOL

For reference I have a couple older articles on this topic here:

Growing a Solaris LDOM rpool

ZFS Grow rpool disk

Specifically this article is what I did recently on a SPARC LDOM to expand the RPOOL. The RPOOL OS disk is a SAN shared LUN in this case.

After growing the LUN to 50G on the back-end I did the following. You may have to try more than once. For me it did not work at first and I don”t know the sequence but I tried a combination of reboot, zpool status, label and verify and it worked. And yes I did say zpool status. I have had issues with upgrades in the past where beadm did not activate a new environment and zpool status resolved it.

Also you will notice my boot partition was already an EFI label. I don”t recall where but somewhere along the lines in Solaris 11.1 EFI labels became possible. If you have a SMI label you may have to try a different approach. And as always tinkering with partitions and disk labels is dangerous so you are warned.

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# zpool list
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NAME    SIZE  ALLOC   FREE  CAP  DEDUP  HEALTH  ALTROOT
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app    49.8G  12.9G  36.9G  25%  1.00x  ONLINE  -
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rpool  29.8G  27.6G  2.13G  92%  1.00x  ONLINE  -
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# format -e
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Searching for disks...done
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AVAILABLE DISK SELECTIONS:
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       0. c1d0 <SUN-ZFS Storage 7330-1.0-50.00GB>
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          /virtual-devices@100/channel-devices@200/disk@0
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       1. c1d1 <Unknown-Unknown-0001-50.00GB>
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          /virtual-devices@100/channel-devices@200/disk@1
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Specify disk (enter its number): 0
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selecting c1d0
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[disk formatted]
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/dev/dsk/c1d0s0 is part of active ZFS pool rpool. Please see zpool(1M).
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[..]
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format> verify
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Volume name = <        >
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ascii name  = <SUN-ZFS Storage 7330-1.0-50.00GB>
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bytes/sector    =  512
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sectors = 104857599
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accessible sectors = 104857566
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Part      Tag    Flag     First Sector         Size         Last Sector
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  0        usr    wm               256       49.99GB          104841182
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  1 unassigned    wm                 0           0               0
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  2 unassigned    wm                 0           0               0
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  3 unassigned    wm                 0           0               0
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  4 unassigned    wm                 0           0               0
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  5 unassigned    wm                 0           0               0
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  6 unassigned    wm                 0           0               0
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  7 unassigned    wm                 0           0               0
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  8   reserved    wm         104841183        8.00MB          104857566
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[..]
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format> label
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[0] SMI Label
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[1] EFI Label
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Specify Label type[1]:
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Ready to label disk, continue? y
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format> q
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# zpool list
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NAME    SIZE  ALLOC   FREE  CAP  DEDUP  HEALTH  ALTROOT
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app    49.8G  12.9G  36.9G  25%  1.00x  ONLINE  -
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rpool  29.8G  27.6G  2.13G  92%  1.00x  ONLINE  -
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# zpool set autoexpand=on rpool
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# zpool list
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NAME    SIZE  ALLOC   FREE  CAP  DEDUP  HEALTH  ALTROOT
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app    49.8G  12.9G  36.9G  25%  1.00x  ONLINE  -
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rpool  49.8G  27.6G  22.1G  55%  1.00x  ONLINE  -