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Howto dynamically increase ZFS swap space on Nexenta

# swap -l
swapfile dev swaplo blocks free
/dev/zvol/dsk/syspool/swap 256,2 16 2097136 2097136
# zfs set volsize=2G syspool/swap
# env NOINUSE_CHECK=1 swap -a /dev/zvol/dsk/syspool/swap $((8+2097136))
# swap -l
swapfile dev swaplo blocks free
/dev/zvol/dsk/syspool/swap 256,2 16 2097136 2097136
/dev/zvol/dsk/syspool/swap 256,2 2097152 2097152 2097152

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