Arcady Genkin put forth on 7/11/2010 10:46 PM: > lvcreate -l 102389 vg0
Should be: lvcreate -i 10 -I [stripe_size] -l 102389 vg0 I believe you're losing 10x performance because you have a 10 "disk" mdadm stripe but you didn't inform lvcreate about this fact. Delete the vg, and then recreate the vg with the above command line, specifying 64 for the stripe size (the mdadm default). If performance is still lacking, recreate it again with 640 for the stripe size. (I'm not exactly sure of the relationship between mdadm chunk size and lvm stripe size--it's either equal, or it's mdadm stripe width * mdadm chunk size) If you specified a chunk size when you created the mdadm RAID 0 stripe, then use that chunk size for the lvcreate stripe_size. Again, if performance is still lacking, recreate with whatever chunk size you specified in mdadm and multiply that by 10. Hope this helps. Let us know. -- Stan -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/4c3ab09a.4090...@hardwarefreak.com