fdisk /dev/mapper/mpath1 or fdisk /dev/sda ?

[Yaboto]

Hi,

I have installed DM-Multipath on my RHEL5 to take care of the redundant SAN multipathing.
It is recommended to create and mark a partition as Linux LVM before "pvcreating" and "vgcreating" it.
Here is my question:

When "fdisking" the partition, which is the recommended device file to use ? the Multipath one /dev/mapper/mpath1 or the ordinary one /dev/sda ?

Regards,

[skt_skt]

all LVM operations need to be on mpathx. You can fdisk(just to list since LVM is there for disk management) on sda devices, but only primary path will respond( assumign u have an active/passive array)

[dirk dierickx]

forget about the sd[a-z] entries, your multipathed now, your disks are now accessable using the mpath name.

[Yaboto]

Thank you !