HP-UX System Administrator's Guide: Routine Management Tasks

each server in the workgroup, and keep it up to date as you add and replace disks and
modify the configuration.
1. Access the HP SMH Homepage.
2. Select Tools → Disks and File Systems → Disks. This will display a list of the
disks in the system.
3. For each disk this screen shows you:
• Hardware path (e.g., 1/0/0/3/0.6.0).
• Usage (e.g., LVM).
• Volume group (e.g., vg00).
• The disk’s total capacity.
(The usable space will be somewhat less than this, probably about 15% less
altogether; see “Setting Up Logical Volumes for File Systems” in HP-UX System
Administrator’s Guide: Logical Volume Management.)
• The disk’s model number and in some cases the name of its device driver, for
example, HP C3010 SCSI Disk Drive.
4. Select each disk, one at a time. This will display more information for the selected
disk at the bottom of the page. You can then select from Properties, LUN
Attributes, LUN Paths, and Physical Volumes tabs to display detailed information
for each selected disk.
• The device file name(s) of the logical volume(s) that occupy the disk.
• How each logical volume is being used (e.g., HFS, Swap/Dump).
• The amount of space, in megabytes, being used on this disk by each logical
volume.
If a logical volume is spread over more than one disk, you can use this screen
to see how the space is shared among the disks.
For example, on the system shown in the diagram, logical volume lvol1 of
volume group vg02 is distributed across two disks, c0t2d0 and c0t5d0.
• The file system the logical volume is mounted to, if any.
You can see how a file system is distributed across LVM disks; for example,
the /home directory on the system shown in the diagram is mounted to
/dev/vg02/lvol1, which occupies all of c0t2d0 and 356 MB of c0t5d0.
It’s useful to know the mapping of physical disk space to logical volumes and file
systems, so you may want to record it on your own diagram.
Use the detailed information to begin the diagram: group the disks into their
volume groups and fill in their hardware addresses and sizes; you may also want
to add the model number (e.g., HP C3010) and device driver name (e.g., SCSI).
5. You can get information on the logical volumes by clicking on the Logical Volumes
tab at the top of the page. This will display a list of logical volumes. You can then
152 Managing Systems