How to recover an aborted relayout command when changing the number of stripes in a volume

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At times there are instances wherein an ongoing process of relayout for striped volumes is accidentally cancelled or gets aborted.

#vxassist -g datadg relayout vol01 layout=stripe ncol=8

After issuing the above command if it is accidentally canceled or aborted, the following errors occur

VxVMvxrelayout INFO V-5-1-2291 Attempting to cleanup ...

VxVMvxassist ERROR V-5-1-3119 Operation not valid for vol01 volume

VxVMvxassist ERROR V-5-1-4037 Relayout operation aborted. (20)

vxrelayout-g datadg status vol01 STRIPED, columns=4, stwidth=128 --> STRIPED,columns=8, stwidth=128 Relayout stopped, 5.89% completed.

1) To recover from the aborted relayout first submit the 'reverse' command:

Syntax:

#vxrelayout -g reverse

Example:

#vxrelayout -g datadg reverse vol01

2) After the 'reverse' has finished, then issue the relayout:

Syntax:

#vxassist -g relayout layout=stripencol=

Example:

#vxassist -g datadg relayout vol01 layout=stripe ncol=8

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