Settings For Lvm2; Notes On Using Lvm2; When Using An Hdlm Device To Create A New Logical Volume - Hitachi XP P9500 User Manual

3. Creating an HDLM Environment

3.10 Settings for LVM2

This section describes the procedure for setting the following items in an LVM2
environment:

• When using an HDLM device to create a new logical volume

• When moving a logical volume created on a SCSI device in a single-path
environment, to an HDLM device
When using HDLM in an LVM2 environment, use the HDLM device as an LVM2
physical volume.

3.10.1 Notes on Using LVM2

The following are notes on using LVM2:
• If a logical volume on an HDLM device (LVM2) is used as the boot disk, a SCSI
device cannot be used as an LVM2 physical volume.
• To use a SCSI device and an HDLM device concurrently as LVM2 physical
volumes, edit the
managed by HDLM, are not recognized by LVM2.
The following shows an editing example when both a SCSI device (
and an HDLM device are used as LVM2 physical volumes.
filter = [ "a|sddlm[a-p][a-p].*|", "a|/dev/sda[1-9].*|",
"r|/dev/sd|" ]
In the above
SCSI devices.
In this example, the following
file so that LVM2 does not recognize SCSI devices:
filter = [ "a|sddlm[a-p][a-p].*|", "r|/dev/sd|" ]
• When SUSE LINUX Enterprise Server 9 is used, LVM2 cannot be used together
with Heartbeat.
3.10.2 When Using an HDLM Device to Create a New Logical Volume
This subsection explains the procedure for using an HDLM device to create a new
246
/etc/lvm/lvm.conf
line, the underlined portion enables LVM2 to recognize
filter
filter
file so that SCSI devices, which are
line is used in the
/etc/lvm/lvm.conf
)
/dev/sda