zfs and swap working?

[Simon]

You can swap to ZFS, you just can't *kernel dump* to ZFS swap.

-Simon

On Fri, 08 Jun 2012 18:06:35 +0300, Volodymyr Kostyrko wrote:

>Hi all.

>Didn't I miss anything? Someone has fixed swap to zfs vdevs?

>arcade at green\~> uname -a
>FreeBSD green.tandem.local 9.0-STABLE FreeBSD 9.0-STABLE #0 r236557: Mon 
>Jun  4
>rc/sys/MINIMAL  amd64
>arcade at green\~> swapinfo
>Device          1K-blocks     Used    Avail Capacity
>/dev/zvol/green/swap  10485760  2238996  8246764    21%
>arcade at green\~> zfs get all green/swap
>NAME        PROPERTY              VALUE                      SOURCE
>green/swap  type                  volume                     -
>green/swap  creation              Thu Jun  7 23:01 2012  -
>green/swap  used                  915M                       -
>green/swap  available             21,4G                      -
>green/swap  referenced            915M                       -
>green/swap  compressratio         2.72x                      -
>green/swap  reservation           none                       default
>green/swap  volsize               10G                        local
>green/swap  volblocksize          8K                         -
>green/swap  checksum              on                         default
>green/swap  compression           on                         local
>green/swap  readonly              off                        default
>green/swap  copies                1                          default
>green/swap  refreservation        none                       default
>green/swap  primarycache          metadata                   local
>green/swap  secondarycache        all                        default
>green/swap  usedbysnapshots       0                          -
>green/swap  usedbydataset         915M                       -
>green/swap  usedbychildren        0                          -
>green/swap  usedbyrefreservation  0                          -
>green/swap  logbias               throughput                 local
>green/swap  dedup                 off                        default
>green/swap  mlslabel                                         -
>green/swap  sync                  disabled                   local
>green/swap  refcompressratio      2.72x                      -
>green/swap  written               915M

>This is just after surviving one night trying to rebuild lang/pypy 
>without enough memory. Everything works fine, swap data is also 
>compressed and cached on cache device.

>-- 
>Sphinx of black quartz judge my vow.
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