Zmena checksum algoritmu pro ZFS

[Jan Dušátko]

Ahoj
Zkousel nekdo zmenit checksum algoritmus na svazku, ktery jiz obsahuje data?

Potrebuji zmenit algoritmus z fletcher2 na fletcher4. Melo by to jit pres
docasne vypnuti checksumu, ale jeste jsem to nedelal. Mate nekdo zkusenost?

Diky, Honza

Nastaveni svazku - zfs get all data:

data  type                  filesystem             -
data  creation              Sun Dec  9  9:06 2011  -
data  used                  4.71T                  -
data  available             11.56T                 -
data  referenced            31K                    -
data  compressratio         1.00x                  -
data  mounted               yes                    -
data  quota                 none                   default
data  reservation           none                   default
data  recordsize            128K                   default
data  mountpoint            /data                  default
data  sharenfs              off                    local
data  checksum              on                     default
data  compression           off                    default
data  atime                 on                     default
data  devices               on                     default
data  exec                  off                    local
data  setuid                off                    local
data  readonly              off                    default
data  jailed                off                    default
data  snapdir               hidden                 default
data  aclmode               passthrough            local
data  aclinherit            passthrough            local
data  canmount              on                     default
data  xattr                 sa                     local
data  copies                1                      default
data  version               5                      -
data  utf8only              on                     local
data  normalization         none                   -
data  casesensitivity       sensitive              -
data  vscan                 on                     local
data  nbmand                off                    default
data  sharesmb              on                     local
data  refquota              none                   default
data  refreservation        none                   default
data  primarycache          all                    default
data  secondarycache        all                    default
data  usedbysnapshots       0                      -
data  usedbydataset         31K                    -
data  usedbychildren        4.71T                  -
data  usedbyrefreservation  0                      -
data  logbias               latency                default
data  dedup                 off                    default
data  mlslabel                                     -
data  sync                  standard               default
data  refcompressratio      1.00x                  -
data  written               31K                    -
data  logicalused           4.71T                  -
data  logicalreferenced     15.5K                  -