Installing and Managing HP-UX on Boot Disks Greater than 2TB with LVM Layout
the boot disks of size > 2 TB to the fullest, the volume group version has to be set
as 2.2
STEP 4: Since the boot disk is big, you can create larger system volumes (root/boot/swap/dump) and
other logical volumes (/home, /var etc) on it.
Refer to
Table 2 for current system volume size limits during Ignite installations.
Table 2. Current System volume size limits during Ignite Cold
installation
Type
LVM boot Layout VxVM boot layout
Whole disk boot
layout
Integrity HP 9000
Integrity and HP
9000
Integrity and HP
9000
/stand (Boot) 1.99 TB 1.99 TB 1.99 TB 1.99 TB
/ (Root)
1.99 TB
1.99 TB
1.99 TB
1.99 TB
Swap 1 TB 1 TB 1 TB 1 TB
Dump 1 TB 1 TB 1 TB 1 TB
As you can see in the table 2, the VxFS File System size chosen for configuring any volume is limited to a
maximum of1.99 TB during the installation, and any size configured beyond 2 TB will be capped to 2 TB .
However you can extend the size of the VxFS File System to a size beyond 2 TB (up to the VxFS allowed
limit) post installation, provided Online JFS License product is installed on the system.
Starting with C.7.16 version , Ignite-UX supports the size of swap and dump logical volumes up to 1 TB. It
is enhanced from the previous limit of 128GB. However you can define multiple 1 TB dump logical volumes
to form even bigger dump space.
Best Practice
With large sized boot disks, unless there are definite needs the system volumes like
boot and root should not be provisioned for more than what is necessary. The
additional space on the boot disk can instead be allocated for other logical
volumes like /var and /home.
Unless there are definite needs, larger root file system is not generally required.
The boot file system (/stand) hosts the core HP-UX kernel image that should not
require larger space
Configure swap space twice the size of RAM. As you increase the swap size, the
consumption of physical memory for storing swap sub system’s internal tables will
also increase. For a 1 TB swap, nearly 2.5 GB of physical memory is consumed.
Configuring bigger swap than what is necessary on low memory systems may lead