HP-UX LVM makes use of software RAIDs, RAID levels supported are
RAID 0 (Striping) | lvcreate using -I and -i options
RAID 1 (Mirroring) | lvcreate or lvextend using -m options
RAID 10 (Distributed Extent Based Striping) | using lvcreate /lvextend with -D y -s g and with use of /etc/lvmpvg
RAID 01 (Mirror of Stripes) | Using lvcreate -m with -I and -i options ( 0n 11.23 this requires the presence of the 16TB LV + Stripe mirror patch )
Creation of RAID 01 on HP-UX which requires the above said patch on HP-UX 11iv2 and is supported by Default on HP-UX 11iv3 with the new generation mass storage stack is as follows.
lvcreate -m 1 -I <Stripe_UNIT_Size> -i <number_of_stripes> -L< LV_SIZE_in_MB> /dev/<VG_Name>
Existing RAID0 Volume can be created a mirror of as follows:
lvextend -m 1 <LV_Name>
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