[linux-lvm] stripped LV with segments vs one segment

[lejeczek]

hi there

I could not extend my stripped LV, had 3 stripes and wanted 
to add one more.
Only way LVM let me do it was where I ended up with this:

   --- Segments ---
   Logical extents 0 to 751169:
     Type        striped
     Stripes        3
     Stripe size        16.00 KiB
     Stripe 0:
       Physical volume    /dev/sdd
       Physical extents    0 to 250389
     Stripe 1:
       Physical volume    /dev/sde
       Physical extents    0 to 250389
     Stripe 2:
       Physical volume    /dev/sdc
       Physical extents    0 to 250389

   Logical extents 751170 to 1001559:
     Type        linear
     Physical volume    /dev/sdf
     Physical extents    0 to 250389

1st question - was this really the only way LVM would extend?
2nd - is there performance penalty with segments like above 
vs one stripped segment?

many thanks,
L.