Ignite-UX Custom Configuration files

# In order to accommodate adding 9GB disks now or in the
# future, set the default max_physical_extents large
# enough to handle it (based on 4Mb extent size).
# Note that this will be increased by IUX automatically
# for disks larger than 9GB.
max_physical_extents = 2500
Very large disks are the most common disks on new systems with ≥140GB disks considered large,
36/72GB disks average, and 18GB disks small. These tests adjust the physical extent size for the
LVM volume group being defined and ensures that the complete disk can be used with the disks. It
is only based upon the size of the root disk, not the size of every disk that might be included. This
might influence the amount of usable space in the volume group. Additionally, Ignite-UX examines
all the disks being used and selects the LVM parameters that work for that entire disk group. The
setting of physical extent size here is just a first approximation; Ignite-UX can change these values
at a later stage.
In a custom configuration, it might be better to scale both max_physical_extents and
physical_extent_size based upon the disk size.
#
# For very large disks, the root group VGRA meta-data area
# will outgrow its bounds and trigger an IUX sanity check
# error. So for root disks large enough, set the physical
# extent size. Note that this only handles the root disk, but
# any disk in the root VG could trigger the error...
#
(disk[_hp_root_disk].size > 21504MB) # >21GB
{
physical_extent_size=8
}
(disk[_hp_root_disk].size > 44032MB) # >43GB
{
physical_extent_size=16
}
(disk[_hp_root_disk].size > 84992MB) # >83GB
{
physical_extent_size=32
}
(disk[_hp_root_disk].size > 179200MB) # >175GB
{
physical_extent_size=64
}
Next are the definitions of the logical volumes in the configuration. The first one is, of course, the
root file system (note the mount_point definition). Depending on the value of the disk layout,
the file system type is either HFS or VxFS.
Further, you have a test for a use model "Create separate volumes (/usr, , ...)". If there are
separate file systems, then the default size for the root file system is 140MB if the root disk is less
than 8192MB, or 200MB if it is greater than or equal to 8192MB.
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