Hi Mark, as far as I know LVM gives you mainly flexibility. For instance if you have a big RAID 5 volume, you can split it in smaller pieces and make bricks for different volumes instead of having just a big brick. If you want to keep things simple you can avoid LVM as long as you don't really need it.
2014-09-19 9:51 GMT-03:00 Mark s2c <mark@xxxxxxxxxxxxxxx>:
What would you say are the efficiencies of using LVM to upgrade and add capacity to the glusterFS and this increasing the size of the bricks? Does gluster need to do anything when bricks are increased in size suddenly?
Or should I really be not using LVM and adding more bricks explicitly?
Just been thinking about this slide deck
http://rhsummit.files.wordpress.com/2014/04/black_w_1650_red_hat_storage_server_administration_deep_dive1.pdf
And why LVM is optional - I want to simplify my grid as much as poss.
Cheers Mark
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