Is there any option with pvmove utility to specify the region size?

Solution Unverified - Updated -

Issue

  • When moving the large number of physical extents (more then 199999 4MB size extents) pvmove causes the system to hang in the same way as creating a mirror above 1.5TB without specifying region size. However, the pvmove command offers no option for Region size. This means that it is very easy to accidentally hang LVM on a whole cluster by issuing a pvmove without these boundaries. Is there any option with pvmove utility to specify the region size?

Environment

  • Red Hat Enterprise Linux 5, 6
  • Mirrored LVM logical volume in a cluster

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