I've got some SSDs mounted up on /dev/sda1 and /dev/sdb1 on a SLES 11 SP2 server, and I was able to tweak the read ahead setting with blockdev --setra:sudo blockdev --setra 4096 /dev/sdasudo blockdev --setra 4096 /dev/sdbsudo blockdev --getra /dev/sda4096sudo blockdev --getra /dev/sdb4096How do I persist this setting on boot?  Specifically, is there a corresponding setting in sysctl.conf, or will I have to settle for an rc script to make this happen? 
Persistent blockdev setra read ahead setting
block device;ssd;sles