How to move data off a specific sub disk using vxsd mv command.

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Article ID: 100023190

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Step by step procedure to move data from one sub disk to the next using the command:

1.Ensure that we have a good backup of all the volumes which need subdisk replacement.
2.Add a new disk 
#vxdisksetup -i c#t#d#
3.Add the new disk to the disk group 
#vxdg -g adddisk =c#t#d#
4.Create the sub disk 
#vxmake -g sd ,, - See the vxprint output for subdisk offset and length.
6.Now let's move the data from the old sub disk to the new sub disk.
#vxsd -g -o rm,slow mv
7.mount -F vxfs /dev/vx/dsk/dgname/volume /mnt
8.Remove the old disk media record from the disk group
 #vxdg -g rmdisk dm_name
9.Remove the old disk from volume manager control
#vxdiskunsetup -C c#t#d#

The move operation can take some time depending on the amount of data to be moved and how busy the file system is during this sequence.
 
 

 

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How to move data off a specific sub disk using vxsd mv command.