Add zfs swap on solaris

 
bash-3.00# /usr/sbin/swap -l
swapfile             dev  swaplo blocks   free
/dev/zvol/dsk/rpool1/swap 181,1       8 4194296 4194296
// ZFS does not support mkfile operation.
bash-3.00# /usr/sbin/mkfile 1g /opt/swapfile
bash-3.00# /usr/sbin/swap -a /opt/swapfile

/opt/swapfile: Invalid operation for this filesystem type

bash-3.00# zfs list
NAME                         USED  AVAIL  REFER  MOUNTPOINT
rpool1                      21.8G   112G    34K  /rpool1
rpool1/ROOT                 18.8G   112G    21K  legacy
rpool1/ROOT/s10x_u8wos_08a  18.8G   112G  18.8G  /
rpool1/dump                 1.00G   112G  1.00G  -
rpool1/export                300K   112G    23K  /export
rpool1/export/home           277K   112G   277K  /export/home
rpool1/swap                    2G   114G    16K  -
bash-3.00# zfs set volsize=4g rpool1/swap
bash-3.00# zfs list

rpool1/swap                    4G   114G    16K  -
bash-3.00# swap -a /dev/zvol/dsk/rpool1/swap
/dev/zvol/dsk/rpool1/swap is currently used by swap. Please see swap(1M).
bash-3.00# zfs create -V 4gb rpool1/swap1
bash-3.00# swap -a /dev/zvol/dsk/rpool1/swap1
bash-3.00# zfs list
rpool1/swap                    4G   110G    16K  -
rpool1/swap1                   4G   110G    16K  -
bash-3.00# swap -l
swapfile             dev  swaplo blocks   free
/dev/zvol/dsk/rpool1/swap 181,1       8 4194296 4194296
/dev/zvol/dsk/rpool1/swap1 181,3       8 8388600 8388600
bash-3.00# swap -d /dev/zvol/dsk/rpool1/swap
bash-3.00# swap -a /dev/zvol/dsk/rpool1/swap

/dev/zvol/dsk/rpool1/swap is normally mounted on  according to /etc/vfstab. Please remove this entry to use this device.
bash-3.00# vi /etc/vfstab comment
 #/dev/zvol/dsk/rpool1/swap      -       -       swap    -       no      -
bash-3.00# swap -a /dev/zvol/dsk/rpool1/swap
bash-3.00# swap -d /dev/zvol/dsk/rpool1/swap1
bash-3.00# zfs destroy rpool1/swap1
bash-3.00# vi /etc/vfstab
uncomment /dev/zvol/dsk/rpool1/swap      -       -       swap    -       no     
 
bash-3.00# swap -l
swapfile             dev  swaplo blocks   free
/dev/zvol/dsk/rpool1/swap 181,1       8 8388600 8388600
 
转载自: http://hi.baidu.com/xaliyan/blog/item/72f4d7f4f132d17fdcc4748d.html

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