Hello,
Is it possible to change an existing logical volume to use "stripes" ?
Below ist the output from "lvdisplay -m /dev/vg1/data"
There are only hundreds of free PE on both physical volumes
(/dev/sda3,/dev/sdb3)
Theortically it should be possible by using a series of pvmove commands
pvmove /dev/sda3:0 /dev/sdb3:<free PE>
pvmove /dev/sdb3:0 /dev/sda3:0
pvmove /dev/sdb3:<free PE> /dev/sdb3:0
pvmove /dev/sda3:2 /dev/sdb3:<free PE>
pvmove /dev/sdb3:2 /dev/sda3:2
pvmove /dev/sdb3:<free PE> /dev/sdb3:2
....
Will that work?
Is this result compareable to
lvceate --stripes 2 -I 9 -L 1T -n data vg1 /dev/sda3 /dev/sdb3"
One difference i see ist that my PE size ist 16384Kb and that maximum
stripe size ist 512Kb.
Thanks
--- Logical volume ---
LV Name /dev/vg1/data
VG Name vg1
LV UUID MZxsoQ-37nY-NbZu-qk9C-x5Oa-V5d9-L7DFZO
LV Write Access read/write
LV Status available
# open 1
LV Size 1000.28 GB
Current LE 64018
Segments 2
Allocation inherit
Read ahead sectors 0
Block device 253:0
--- Segments ---
Logical extent 0 to 31249:
Type linear
Physical volume /dev/sda3
Physical extents 0 to 31249
Logical extent 31250 to 64017:
Type linear
Physical volume /dev/sdb3
Physical extents 0 to 32767
--
Ulrich Leodolter
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