Logical volumes with multiple extents report multiple times the same stripe size value

[jovandeginste]

Describe the Bug

When you have a logical volume with more than one extent (eg when you resize it after adding another logical volume), the command to report the stripe size gives a number per extent. While this should be the same number, this is still giving extra output.

/Stage[main]/Logical_volume[datavg-test]/stripes 	stripes changed "2\n     2" to 2 (corrective)

Expected Behavior

If all numbers reported are the same, report only this single number

Steps to Reproduce

1. create a logical volume "test"

lvcreate -n test --size 10G --stripes 2 datavg
lvs -o stripes --noheadings /dev/datavg/test
     2

2. create a second logical volume
3. extend the first logical volume

lvcreate -n test --size 10G --stripes 2 datavg
lvs -o stripes --noheadings /dev/datavg/test
     2
     2

Environment

• Version: 2.3.0
• Platform: AlmaLinux 9.4

Additional Context

Fixed with:

  def stripes
    # Run the lvs command with the -o option to get only the stripes count
    raw = (lvs '-o', 'stripes', '--noheadings', path)

    output_array = raw.split(/\n/).map(&:strip).to_i

    return output_array.first if output_array.uniq.length == 1

    output_array
  end

  def stripes=(new_stripes_count)
    current_stripes = stripes

    # Changing stripes is not supported for existing logical volumes
    return unless new_stripes_count.to_i != current_stripes
    raise(Puppet::Error, "Changing stripes from #{current_stripes} to #{new_stripes_count} is not supported for existing logical volumes")
  end