다음과 같이 해 보시기 바랍니다.

$ onspaces -a  <SBLOBspace> -p <path> -o <offset> -s <size>

onspaces 에 대한 옵션

$ onspaces --
Usage:
 onspaces { -a <spacename> -p <path> -o <offset> -s <size> [-m <path> <offset>]
               { { [-Mo <mdoffset>] [-Ms <mdsize>] } | -U }
               } |

          { -c { -d <DBspace> [-t]
                    -p <path> -o <offset> -s <size> [-m <path> <offset>] } |
               { -b <BLOBspace> -g <pagesize>
                    -p <path> -o <offset> -s <size> [-m <path> <offset>] } |
               { -S <SBLOBspace> [-t]
                    -p <path> -o <offset> -s <size> [-m <path> <offset>]
                    [-Mo <mdoffset>] [-Ms <mdsize>] [-Df <default-list>] } |
               { -x <Extspace> -l <Location> } } |

          { -d <spacename> [-p <path> -o <offset>] [-f] [-y] } |

          { -f[y] off [<DBspace-list>] | on [<DBspace-list>] } |

          { -m <spacename> {-p <path> -o <offset> -m <path> <offset> [-y] |
                            -f <filename>} } |

          { -r <spacename> [-y] } |

          { -s <spacename> -p <path> -o <offset> {-O | -D} [-y] } |

          { -ch <sbspacename> -Df <default-list> } |

          { -cl <sbspacename> }

    -a  - Add a chunk to a DBspace, BLOBspace or SBLOBspace
    -c  - Create a DBspace, BLOBspace, SBLOBspace or Extspace
    -d  - Drop a DBspace, BLOBspace, SBLOBspace, Extspace, or chunk
    -f  - Change dataskip default for specified DBspaces
    -m  - Add mirroring to an existing DBspace, BLOBspace or SBLOBspace
    -r  - Turn mirroring off for a DBspace, BLOBspace or SBLOBspace
    -s  - Change the status of a chunk
    -ch - Change default list for smart large object space
    -cl - garbage collect smart large objects that are not referenced
    default-list = {[LOGGING = {ON|OFF}]  [,ACCESSTIME = {ON|OFF}]

            [,AVG_LO_SIZE = {1 - 2097152}] }

[ FROM BY DYSSE : http://ilovedb.we.ro ]