Configure Symmetrix disks for RH Linux 2.6

so once you've masked devices to your linux box you will need to rescan the bus so it creates device files

https://www.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/html/Online_Storage_Reconfiguration_Guide/scanning_for_new_devices.html

i know it says that device names might change, but if you are using PowerPath it does not matter. Even if native device changes (/dev/sda1 becomes /dev/sda3) PowerPath device will still point to correct name.

So  after you rescan devices, you can run "fdisk -l" to make sure you actually see them. If you do, go ahead and run "powermt config" and "powermt save". At this point you should be able to see power devices listed in "powermt display dev=all". Make sure policy is set to so.

Next step is to setup LVM, you want to run all the LVM commands against your power devices, not native devices (/dev/sda1)

http://www.redhat.com/magazine/009jul05/features/lvm2/

After LVM is configured you can create file system on top of logical volume, for example

mkfs -t ext3 /dev/vg0/lvol1

create mount point and mount this logical volume.